Humanure

Before building our house at the farm, it took Dev several months to nail down all the details involved in building a composting toilet for the Indian context. We have been using this composting toilet for over four years now. Here I share the history and details of this construction.

Developing An Understanding

A couple of decades ago, when we were living in California I remember reading somewhere “all of us are peeing and pooping in drinking water”. The blatant truth in this statement hit me really hard. I felt terrible about  what we were doing (or being forced to do). This understanding was weighing me down for sometime and slowly it receded into the background. Several years later I came across this quote by Joseph Jenkins:

“The world is divided into two categories of people: those who shit in their drinking water supplies and those who don’t.”

This was a wake-up call. Dev and I started reading “The Humanure Handbook” by Jenkins. (All the quotes in this article are from this book) Soon after reading this book we decided that we wouldn’t have a septic system in the house that we were planning to construct on the farm. Also, we had a self-imposed limit on the water (2000 liters per day for household and farm purposes) that we could pump from our bore well. We needed to conserve all the water we could and use it for growing trees. Thus a no-flush toilet idea appealed to us right away.

 “According to a composing toilet manufacturer, waterless composing toilets can reduce household water consumption by 150,000 liters per year. This is significant when one considers that only 3% of the Earth’s water is not salt water, and two-thirds of the fresh water is locked up in ice. That means less than one percent of the Earth’s water is available as drinking water. Why shit in it?”

Current Sewage System - A Nightmare

“Let’s assume the whole world adopted the sewage philosophy we have in the United States: defecate into water and then treat the polluted water. What would that scenario be like? Well, for one thing it wouldn’t work. It takes between 1000 and 2000 tons of water at various stages in the process to flush one ton of humanure. In a world of jut 6 billion people producing a conservative estimate of 1.2 million metric tons of human excrement daily, the amount of water required to flush it all would not be obtainable.”

"Our septic systems pollute groundwater; this is an undeniable fact ... Between 820 and 1460 billion gallons of this (water from the sewage systems) contaminated water were discharged per year into our shallowest aquifers. In the US, septic tanks are reported as a source of ground water contamination more than any other source.”

What about wastewater treatment plants or sewage plants?

These plants are basically huge septic tanks that collect excrement(floating in water) of a large population. Treatment plants use aerobic or anaerobic microbial digestion of the solids. Once the microbes do their job and the contents are allowed to settle down, we are left with solids (called sludge) and the waste water. Sludge is treated differently in different places -- benign to out-rightly harmful practices . “The water left behind is treated, usually with Chlorine, and discharged into a stream, river or other body of water.” Whatever happens to groundwater! In India, the fecal sludge is often emptied out into untreated water, agricultural fields or forests. This poses serious risk to the public and the environment.

The Human Nutrient Cycle

 

 

 

PC: The Humanure Handbook, by Joseph Jenkins

I found this excerpt on iharweb.org; it succinctly captures the mess we are in:

“humans are going through the elaborate process of mining and processing to manufacture fertilizers, applying them to crops, and then losing it all via wastewater. Lakes and streams, which receive an excess of nutrients from wastewater are suffering from serious ecological effects such as oxygen depletion and fish-kills. Also, synthetic fertilizer manufacturing is an energy-intensive industry and is expected to increase to feed an ever-growing population”.

Closing The Loop

 “Not all cultures think of human excrement in a negative way. For example, swear-words meaning excrement do not seem to exist in the Chinese language. Traditionally, there was nothing more valuable to a peasant than humanure.”

 "In China, the practice of composting humanure with crop residues has enabled the soil to support high population densities without loss of fertility for more than 4000 years. There certainly was no chemical fertilizer 4000 years ago. The practice of composting all waste (humanure, livestock manure, household organic residues, organic farm residues) yielded a rich manure". 

“Farmers of Forty Centuries” was a book written by Dr. F. H. King and published in 1910. Dr. King was interested in finding out how people could farm the same fields for millennia without destroying their fertility. He writes:

“One of the most remarkable agricultural practices adopted by any civilized people is the centuries long and well nigh universal conservation and utilization of all humanure in China, Korea and Japan, turning it to marvelous account in the maintenance of soil fertility ... mineral fertilizers so extensively employed in modern Western agriculture have been a physical impossibility to all people alike until within very recent years”.

Our Construction

One of our friends, Venetia Ansel, had built a composting toilet on their farm. She helped us understand the issues involved. After a series of discussions at home and some R&D, we arrived at a design that incorporates:

- a urine diverter

- a urinal (for men)

- a urine collecting tank, that receives urine from both the men's urinal and the urine diverter

- a granite-top bench that sits on top of a toilet chamber 

- a toilet chamber 

- an exhaust vent pipe from the chamber

Our Composting Toilet

Composting Toilet Bench

Technical Details:

• The granite-top bench has a "business" area and a wash bowl. The "business" area is basically an opening in the bench with a bucket underneath it. The opening is slightly bigger than a normal Western toilet seat. The height of this bench (38 cm) ensures that it can be used as a Western (sitting style) toilet or Indian (squatting style) toilet. We have a hand-crafted toilet seat, for Western use. 
• The urine diverter, installed in the front of the "business" area, separates urine from the solids. We got this fabricated. This is connected to a five liter can, that is placed outside the building. We dilute the collected urine and use it as a fertilizer. The urine diverter does its job irrespective of the user's position (sitting or squatting). It ensures that the bucket underneath doesn't get  much of the liquid. The user is oblivious of all these technical details. 
• The toilet chamber has an opening from outside the building. We have a metal gate here. We have used an old cycle tube to achieve an air-tight seal (to deter bugs). The floor of this chamber is sufficiently above the ground level, to prevent any water from getting in during heavy rain.
• The vent pipe, from the toilet chamber, is covered with mesh at the top and capped with a PVC 'T' joint
• A hand-crafted, inverted 'U' shaped, wooden platform sits on top of the wash bowl to enable easy washing
• A window with mesh keeps the place well ventilated

Usage

After every potty use, we gently scoot over to the wash bowl and use the health faucet (spray) situated on the wall behind us. To prevent any odour, the (solid) excrement needs to covered well. We use sawdust from the local saw mills as the cover material. We get our sawdust from timber-only mills (these mills don't process plywood). We have used crushed, dried leaves when we couldn't procure sawdust. 

This toilet wastes so little water -- hardly 5 liter, for a family of four for an entire day!

If a composting toilet is managed properly, it should be odour-free...these toilets should provide a suitable alternative to flush toilets for people who want to stop defecting in their drinking water".

Composting and  Pathogens

We do off-site composting. We have a 10 liter bucket, aligned to the center of the opening in the granite-top bench of our toilet. This bucket is placed on a wooden base, with castors. Once the bucket gets filled up, we use a long hook to drag it out of the chamber. We dump this on top of an (unfinished) compost pile. 

We add kitchen waste and farm's green waste to the same pile. We sometimes add the collected urine also, depending on the moisture level of the pile. The nitrogen in the urine balances the carbon in the sawdust. Before re-installing the bucket into the toilet chamber, we wash it and add sawdust to the bottom. This ensures that the contents of the bucket get cleanly dumped. This keeps the bucket fairly clean and uses very little water while washing.

Once the unfinished compost pile gets sufficiently big, we start the composting process. We let the pile cool down for a couple of months. We then use the end product -- dark, fluffy, earthy smelling humus -- to fertilize fruit trees. We have observed that the trees and bamboo close to the humanure compost pile absolutely thrive from the extra nutrition that they receive from this pile. We have not observed the same growth rate anywhere else in the farm.

"There are two primary factors leading to the death of pathogens in humanure. The first is temperature. A compost pile that is properly managed will destroy pathogens with the heat and biological activity it generates. The second factor is time ... Given enough time, the wide biodiversity of microorganisms in the compost will destroy pathogens by the antagonism, competition, consumption and antibiotic inhibitors provided by the beneficial microorganisms".

Feedback from our visitors

We have had visitors from all over India, the U.S. and London. The most common feedback that we have heard so far is "it is just like a normal toilet!" We are very happy to hear this. We have hosted many, many families and have had no problems. A friend who built his house recently remarked "how I wish I visited this place before building my house! I would have built a composting toilet too!" Surprised by the ease-of-use and odourless nature of the toilet, a friend from Bangalore said that she would recommend this design to anyone thinking about such a toilet.

Commercial Composting Toilets

There are many commercial composting toilets now. Eco-san toilets are used in many places in India. Clivus Multtrum USA has been in the market since 1964! BioLet toilets are being engineered and built in Sweden since 1972! "At least 21 different composting toilets were on the market in Norway alone in 1975".

Future

A no-flush movement is gaining momentum in Europe. People are waking up to the fact that the current way of flushing and polluting the environment is not a sustainable one. Just last week, the Sunday Times (UK) ran an article on how "Composting Loo" is becoming the new status symbol!

“we too will have to constructively deal with all of our organic byproducts eventually. We can put it off, but not forever”. 

”... human species must inevitably evolve ... flush toilets and bulging garbage cans represent well entrenched habits that must be rethought and reinvented”. 

-- Hema

 

To Market, To Market

We live on our farm, at the foothills of a range of hillocks. We are off the main road by about a kilometer. We go to the market area in Athimanjeripet once every couple of days or so for all our house-hold and farm needs. This is a three kilometer ride one-way. Athimanjeripet is a village with a population of about 5000. Here is an account of my ride to the town and back, from a couple of days ago:

Subbamma went “Madam! Long time no see! How are you?”. I found her limping more than usual after the recent surgery. I was wondering how her husband was doing. I hadn't seen him in a while.

*

On the road, Nalini, a retired school teacher, was waiting for a bus. She said that arthritis was quite bad. She is a cheerful person, I enjoy meeting her, however briefly.

*

I stopped at Lata’s place to pay for the manure we had picked up from their place, earlier that week. Lata’s neighbour got curious to know what was going on. After a couple of minutes of chit-chat, she went about doing her usual business having had her curiosity satisfied. I paid Lata for the manure, bought some coconuts from her and left soon after.

*

We used to live in a rental house when we initially came to Athimanjeripet. There I got to know Babu, our landlord’s brother. As I was riding towards the town, he was zipping through on his motorbike; he acknowledged me as he went past. This quick acknowledging gesture of the head making a quarter turn and back took me some time to get used to, not to mention the practice needed to get it right. I was wondering how his new business was going. During corona, he started selling fruit on a truck stationed by the roadside in our market.

*

A bit later I spotted our potter on his bicycle. He did the same quick quarter rotation which I was happy to reciprocate. I was remembering that his wife had recently passed away. 

*

I arrived at the bazaar street, the one and only one we have. The cloth merchant’s shop, a tiny 8’ X 20’ space, was stocked with sarees, T-shirts, fabric for men's shirts, pants and women’s blouses. He had a couple of stools at the entrance of his shop to seat his customers. He typically brought the fabric out to the customers at the entrance. He let me step into the shop and look at his collection. Once I finished my shopping, he said that he was offering me a discount of ₹10!!

*

My next stop was the tailor’s shop. Rama, in late 20’s, used to work at a textile export factory in Chennai. When he couldn’t suffer the long hours any more, he quit the exploitative job to start his own shop here in the village. He gets inundated with orders, especially during festival seasons, school reopening times and months in which weddings happen frequently. He is never short of work. This also means he can’t deliver on time. Thus it was my n^th time to his shop asking about the status of my clothes. I remembered that one of his relatives was recently hospitalized after a snake bite. I asked about that relative’s health. He updated me about those hospital visits, the expenses involved, the stress in the extended family etc. It was needless for me to ask if he got around to working on my order. Happy that his relative survived the snake bite, I left his shop. Rama asked me to call him after a week.

*

A little disappointed about not getting my clothes, I started my ride back home. The banana vendor waved at me and said “no”. I knew what he meant -- “I don’t have old bananas to spare today”. I usually stop at his teeny-tiny (5’ X 3’) make-shift, road side shop to pickup the bananas he can’t sell -- overripe, mushed up, with black spots. I bring them home for our chickens. He sets these aside for me to pickup once in every two days or so. He is happy to give these away and I am happy to get these for our chickens. In return, when I want to buy bananas, I make it a point to buy from him.

*

The next two kilometer ride was not eventful. As I approached our village, I saw Mohan on the road. I remembered that his son-in-law had come over last week and there was a big dispute. I asked him about that and he said that they had decided not to send their daughter back with her husband. The guy being a drunkard had beaten his daughter many times in the last few years and the decision is now made to have her live here with the parents. The story gets complicated as this daughter has three kids and there is no source of income.

*

With a heavy heart, I kick-started my motorbike. A couple of minutes later, Das waved to say that he will come over to get his cow. He had brought his cow earlier in the day to graze at our farm. We get milk from Das’ cow. I said okay without stopping to talk further.

.

*

I came back home and started my chores. It is quite normal to meet people on the road, chat, get to know the happenings and share a bit from our side too. This gossip is essential, as Harari says in the “Sapiens”. There are downsides of gossip too, no denying that. But the lack of human connection makes our lives dry and disconnected.

*

To compare and contrast, I would like to talk about our lives in a suburb in northern California. We had lived in the same house for 11 - 12 years! And yet, we didn’t know a single family there for 10 long years! Only during the last year (ironically when we decided to move) we had neighbours who wanted to talk to us. Our neighbourhood was beautifully maintained, landscaped, had all the amenities but yet lacked life. I had two babies in that house. Not one soul came to see me or the babies! We and all our neighbours got out of our houses in our cars and came back in our cars -- it was as if our remote-operated car garages were spouts from where our cars emerged out and the garages sucked us and ours cars back in when we came home. Nobody ever needed to walk out of the house! We could hardly see people out on the roads. In all those twelve years, there was a two week period when they were laying roads for which we needed to park our cars outside the neighbourhood and walk the last bit. This changed our lives! We got to see people walking to work, coming back from the stores, gathering on the street. I started looking forward to that little walk in the mornings and evenings, just to see new human faces.

*

Now, twenty years later, when I go to Chennai (or any other big city) especially to the new areas where high-rise apartment-living is the norm, I remember my northern California suburb days and wonder how people in such apartments, leading nuclear lives, feel about their disconnect from the rest of society around them; or do they even have the time to know that there is a disconnect?

-- Hema

 

 

 

The konnai story

In 2013, when we were new to Athimanjeri, there was no garbage dump here. I didn't really see a need for one as there was not much garbage. But in the following few years, this changed rapidly. We now have two 100 ton garbage pits that fill up in no time. This put me in touch with the stark reality -- just a handful of us making eco-friendly choices is not going to make a dent in the garbage produced.

When Corona was at its peak in 2020, I realized that this presented a unique chance for introducing cloth pads (an eco-friendly alternative to disposable sanitary napkins) in our village and town. I started making cloth pads with a small group adolescent boys and girls. My idea was to provide job opportunity locally and grow a few socially-responsible individuals who can carry this venture forward.

I wanted to keep the price low, to make it affordable for the people here. I priced them at ₹ 100, per pad. Armed with a bunch of our cloth pads, I started a campaign, in our town and nearby villages, about the financial and ecological implications of using disposable napkins. Whenever I had a captive audience I handed out free samples. Over the course of next eight months, I gained the following understanding about the lives of rural women and the various factors that are at play here:

• Cheap disposable pads are really cheap (₹ 5, per pad). Because of this highly subsidized rate, in many cases it makes very little economic sense to not use disposables.
  
• Women spend  ₹ 50 - ₹ 150 per month on disposable napkins
• Many of them don't change their pads since every pad costs money. They use their pads for 8 - 12 hours!
• Young girls, women in their 20's and 30's do not want to wash cloth pads. 
• Older women (40 and above) still use cloth
• Often a poor, semi-urban family shares their bathroom/toilet with other families. Soaking and washing cloth pads is not practical here. 
• Government schools in Tamilnadu offer free disposable pads for girls from 9th grade onwards. Their families are not spending on pads. The staff at these schools siphon a part of these pads to their homes. Thus their relatives also get free pads. 
• Government schools in Andhra Pradesh offer free pads for older girls. The girls toilets are equipped with incinerators. So these schools don't see how this can be an environmental pollutant.
• Women often develop allergies by using disposable pads, but they don't talk about that.
• Most women burn the used pads, only some bury them.
• Up to 10% of the women, between ages 25 and 35, have had their uterus removed for mysterious reasons.
  
• Interestingly, caste and class played a role in how menstruation could be talked about. The upper the caste or class was, the males in the family were not involved in the discussion.

A very small percentage of women were eager to try the cloth pads. Satisfied with our pads, they started spreading the word around slowly. This local market was clearly not enough if this venture had to provide a sustainable livelihood for the makers of these pads. There was a need to go beyond the tiny radius that we were operating in. Thus konnai was born in mid-2021, with the help and support of many of our friends. It is now a rural employment initiative providing a source of income to a small group of youth and women.

konnai's vision is to enable people make better choices for a better tomorrow. This includes providing high quality eco-friendly reusable products at reasonable prices; providing a healthy work culture for the makers where they and their families can thrive.

 

Other than cloth pads, we also make cloth bags, cloth diapers, changing pads, baby wipes and bibs. konnai is now online. We can receive online orders and receive payments through GooglePay. Please spread the word about konnai. Thank you!

 

 

-- Hema

A Decade Into Homeschooling

I wrote this piece recently for the Teachers Plus magazine.: 

"Our home is the best place on earth. I LOVE being at home. Why can't I be at home most of the times and go to school rarely?" This came from my child when he was 7 years old. Although I didn't want to ponder over his question then, it haunted me. A year later I decided to take a deep look at his question and address his unhappiness in going to school. That led to a cascade of events leading to where we are now. We are thankful for the support we received from fellow homeschoolers and the insights from authors like John Holt, Alfie Kohn and Gabor Mate.

Fast forwarding ten years. My husband Dev and I live on our farm near Tiruttani/Chittoor with our kids Abhi(17) and Aparna(14). Aparna never went to school. Abhi has been home since he was eight. The decision to homeschool liberated us. We realized that could live literally anywhere we wanted to. We were not limited by the necessity to continue a way of life, just for the sake of conformance. The decision to homeschool dramatically brought down the everyday stress level at home. As a direct consequence the quality of our life got better. This enabled us to pause and question our priorities in life. This in turn enabled Dev to quit his corporate job; soon after that we moved back  to India (from the US).  

For the past seven years we have been living in rural South India. Looking back, the challenges presented by this period have inevitably resulted in learning new skills. It is important to mention here that we didn't embark on this path with this agenda in mind. Here I would like to present a few snap-shots from our homeschooling experiences.

Since we have snakes in our area, it was highly imperative to be able to identify them correctly and swiftly. This need fueled by their interest, the kids got adept at identifying, catching and rescuing (non-venomous) snakes. During this feverish phase they made toys, tools and games that would help them with snake identification and snake catching. Life was all about and only about snakes. We even cared for a Checkered Keelback at home for three weeks to observe it in close quarters. In our neighbourhood they are now known as the local snake catchers. 

Similarly, the lack of restaurants and a strong desire to enjoy baked goods got Aparna interested in baking. She now bakes wholesome bread, cake and pizza. She experiments with local/seasonal fruit and vegetable in her recipes. 

Two years ago Abhi wanted to eat the fruit of our palm trees. But people that climb palm trees are not easy to find anymore, even in villages. Thus his desire drove him to learn to climb palm and coconut trees. This process lasted for about two years - to acquire enough physical strength and skills, to get over his fear of heights, to collect and use the tools needed for the harvest. This summer both Abhi and Aparna were able to climb and harvest palm fruit and tender coconuts. Abhi wanted to document this process and that became a valuable film-making experience that involved script writing, editing and post-production software work. His work is available on his youtube channel "dancing dodonaea studios".

For several months, after moving in to our new house at the farm, we were looking for a carpenter to build a chest of drawers for our farm tools. We could find absolutely no one to work on such an unconventional project. As Dev started designing the storage space, Aparna got interested in building it. She already had basic wood working skills since she had built some furniture. These skills were developed and honed for many years -- starting from working on cardboard projects (miniature models), moving on to simple utility (wood) projects with no joinery and then taking up joinery work. She is currently into relief carving (carving done on a flat panel of wood). All these were born out of interest and/or necessity. 

We have always been a multi-lingual family - my native tongue is Tamil, Dev's is Hindi. We live in a place where Telugu is spoken by half the population. Although they speak all these languages, the kids never focused on the writing aspect of Indian languages. Out of the blue Abhi recently realized the need to be fluent in the Tamil script. As he was watching a Permaculture documentary in English, he had an urge to make it available for the non-English speaking, local Tamil farmers. So he started writing the subtitles for that documentary in Tamil, of course with Google translator on his side. In just a few weeks he became a Tamil literate! 

Dev and I consider the education of our children as a piece in the jig-saw puzzle of our life - no more or less important than the other pieces. After moving to India, we bought a piece of land and got into farming without any prior experience. It has taken us all these 7+ to learn about the local ecology, soil and organic methods to a reasonable extent to be able to grow some food. Similarly every aspect (off-grid, composting toilet, adobe bricks, traditional tiled roof, natural finishes) of our house construction took us long to research, learn and execute. As a consequence of this, we as a family now have many construction related skills - masonry (brick and stone), carpentry, plumbing, laying tiled floor and grouting, mud plastering and finishing. It is important to emphasize here that all these started from humble beginnings. 

One common thread that I have observed in all these learning journeys is the sustained interest that is needed to learn any skill deeply. Sustained interest can come ONLY from within. It can't be force-fed. Sustained interest, I have seen, comes out of a burning desire or an absolute need of the hour or the pleasure we derive by doing something (like music). Sustaining an interest is possible only if we enjoy the process, not if we wait impatiently for the end-product. Working with hands and working on our own helps us understand this. 

During all these years of being with children, I have observed that they go through periods of no activity -- when they are not visibly engaged in anything. These periods of non-activity, I think, are as crucial as their growth spurts. During these periods they question life around them, assimilate something they came across recently, heal themselves, dive deep into themselves etc. I have learned to cherish these periods and not disturb them while they are there.

To us homeschooling has been about:

-- mindful parenting, to the extent possible

-- growing organic food and working together as a family

-- being close to nature, getting in tune with its cycles and taking care of other life forms (plants, trees, animals)

-- allowing everyone to take up things that interests them deeply and nurturing the development of those skills

-- maintaining an environment where mistakes are considered a part of the process

-- building resilience that the kids need to survive during difficult times in this era of climate change

-- having enough time to ponder over questions that come up and to develop an understanding about one's own self

-- trusting our ability to solve problems (technical, medical, emotional) and not resort to professional help right away

-- personal care -- cooking, washing clothes, cleaning, making clothes, hair cutting 

-- management and self-regulation of one's time

In our lives, saying "no" to mainstream has ended up as saying "yes" to various other possibilities, which have made life more fun. There certainly have been difficult and challenging times since we changed the course of our lives. But then, there were similar phases earlier too! In a certain sense, we have chosen the current set of challenges and that wasn't the case before.

-- Hema

Green The Red: Sustainable Menstruation

 I was born in 1974. Fortunate I was, for that was a time when disposable sanitary napkins were not there. There was no such trash then. On the contrary babies born this year in India, are born into a country trashed with 432,000,000 disposable sanitary napkins every month. Not the babies' fault though! Not one bit. (Data Courtesy: Environmental Portal, Down to Earth, 2011) 

This data being a decade old, it would be safe to say that the current number is likely to be ten times more than that -- 4320 million disposable sanitary napkins in garbage in India, every single month!! If this astronomical number is not enough to stop us on our tracks I don't know what else could.

If all our ancestors were trashing the planet the same way we do now, we wouldn't have had the space to grow food and live well. We would be surrounded by mountains of the napkin trash that would take 500 - 800 years to decompose; or we would be breathing toxic air that had the emissions from incinerating those. We thankfully still have a reasonably good planet. There is an inherent contradiction when we worry about the future of our children and trash the planet where they will live. This planet is a loan that we have borrowed from the next generation. We need to hand it over to them at least in the way we found it.

After all women have been menstruating ever since the inception of our species. We are not the first ones to menstruate! Thus it does not give us the right to trash the planet. We are mothers, wives, daughters, care-takers, home-makers,  professionals. We are socially responsible citizens. We can't be trashing the planet.  Our convenience in using disposable napkins externalizes the environmental costs involved. If all those costs were to be added up, the cost of a disposal napkin would go up multi-fold and thus would become un-affordable. Cheap products, more often than not, have subsidies, hidden environmental costs and externalized costs, that are worth investigating.

The switch to a reusable cloth-pad or a cup is a good place to initiate meaningful conversations in the family. I have heard excuses of all kinds: "it is dirty", "I can't see blood", "I can't insert the cup", "I can't wash the pad" etc. We ought to remember that every time we come up with excuses and make things convenient for ourselves, we are ruining the planet for our children and their children. This is the bitter truth we have to face if we continue with the convenience of disposable napkins.

How did this transition come about? An elderly person in our village gave me a plausible explanation:
"We used to consider air, water, land, fire, space (the five elements of nature called pancha bhoota) as sacred and elders instructed us not to pollute these. These were worshiped as Gods. Later when Gods were moved to their abodes in the heaven, the sanctity of these five elements was lost. People didn't see the need to worship them."

Going back to nature worship or heightening one's social responsibility? 

Green The Red: Sustainable Menstruation 

-- Hema

Barefoot

We were in a park in California with a couple and their toddler. This was twenty years ago when we were new immigrants in the US. The toddler was being carried around by her parents for quite a while. When she insisted on being down on the ground her parents complied. She was barefoot and she clearly didn't like the feel of grass. She curled her toes and made distressed faces. It seemed to me that she found it repulsive. Before she started crying she was high up again resting comfortably against her dad's shoulder. Although this incident lasted only a few minutes, it haunted me. Especially because I had always seen children roaming around barefoot in India. I was wondering how unnatural it was for such a small child to dislike something that was absolutely natural, given our evolutionary past. 

A few years down the lane, I had conveniently adopted new ways of living in the US. House slippers, walking shoes, running shoes and hiking shoes ensured that I was never barefoot. I insisted that my kids never step out without footwear. I was into running then. I sought relief in new pairs of footwear for the pain that manifested in my legs and feet. I thought that if Nike didn't work, Puma would. And if Puma didn't Keen might. Then came Vibram. Dev started using these when he ran and found the experience very enjoyable. That was when we got introduced to barefoot running. This phase didn't last long though. This was also the time when we were packing our bags to move to India.

During the initial period in India, as the kids were getting used to new ways of living I noticed that they stopped wearing their footwear unless we were traveling. Shoes are impractical in a humid place like ours; we switched to sandals. The kids would never wear them to play on the road or to visit the neighbors or while they were at the farm. Over a period of time their feet developed calluses and they could walk nimbly even on gravelly surfaces. They encouraged me to go barefoot while I was at the farm. I was equally keen to try it out because I was always in pain from wearing footwear - shoes or sandals, all the brands that I have tried, have left me begging for something that would cause less pain. I timed my barefoot experience every day; starting literally from baby steps and slowly ramping it up. Initially it was quite painful. In a few months it was effortless and it brought my pain significantly down. By this time I was deeply interested in evolutionary biology and was making changes in our lifestyle based on this new understanding, to fix our health issues. Thus there was a context that helped me understand the significance of going barefoot. After all each one of us have uniquely shaped feet and how can it be possible for Nike or Reebok to get it right for all of us? 

The human foot is a marvelous, complex mechanical structure. According to wikipedia, it has 26 bones, 33 joints and more than a hundred muscles, tendons and ligaments. When we wear shoes, these bones and joints are fused to perform as one unit which they obviously are not. Only when we go barefoot we can observe the nuanced ways of functioning and feedback that have existed for millennia in this region of our body.

We recently started running barefoot. We run for 15-20 minutes, about 1.5 to 2 km. This has helped fix my gait and eliminate the pain in my legs and feet.

Here are some resources for further reading and research:

1. Running Shoes: Why we don't need them -  Christopher McDougall

https://www.youtube.com/watch?v=F90D418SFZI

2. Are we born to run? - Christopher McDougall

https://www.youtube.com/watch?v=b-iGZPtWXzE

-- Hema

An Evolving Polyculture

"Burn this ghastly pile of thorny plants". We repeatedly heard this from the local people and farm workers when we had uprooted a lot of thorny shrubs and trees. The pile was about 7' tall and 20' wide. We didn't have the heart to waste that much biomass, much less to produce so much heat and smoke.

"The problem IS the solution" says Bill Mollison, co-founder of Permaculture. With this thought in mind I searched through Mollison's Design Manual. I found the south east Asian design of Palm circles useful and appropriate. Here is how we customized it:

We dug a shallow, circular trench around the thorny pile and mounded the soil (from the trench) on the outer side. We planted 8 coconut saplings around this trench. This formed a circle of 27' diameter. The coconuts were about 10' apart. These were interspersed with banana and papaya. We once grew a small crop of peanuts on the berm. We are now growing pumpkins there.

After three years, this circle and the area around it has become home to all these volunteers:

wild passion flower (creeper covering the thorny pile),

Crotalaria juncea (Indian hemp or sunn hemp),

Clitoria ternatea (creeper with beautiful blue or white flowers),

Crotalaria striata (leguminous shrub with lot of yellow flowers) ,

Calotropis gigantea,

Dodonaea viscosa (shrub),

Holy Basil (Indian Tulsi),

Thai Basil,

Wild Tulsi,

Medicinal herbs,

Rosella (gongura),

Tridax procumbens (ground cover),

lemon grass.

These plants together with the ones we planted (i.e. coconut, banana and papaya) have created a small paradise that attracts a lot of butterflies, birds and bees. The vines keep the thorny pile under a perennial green cover, thus helping with moisture retention and decomposition. Thanks to mainly the indefatigable termites, the colossal thorny pile has shrunk to a mere 2'  mound. A scoop of the soil from underneath the pile now features a beautiful biomass-rich crumb. And all this newly created fertility is slowly oozed out to the plant circle.

A portion of the circle showing Coconut, Bananas and Papaya

The decomposing thorny pile with passion flower smothering it

Aerial view of the circle

According to Bill Mollison, as the coconuts grow the fallen coconut fronds are piled up in the center. This reduces labor when compared to conventional grid-style coconut groves. The pile in the center thus becomes the reservoir of nutrition and moisture. 

The circle is always under mulch with the banana suckers we remove periodically. We once used wasted cardboard to mulch the berm. This brought in a lot of termite activity that enriched the soil.

Initially we flood irrigated the circular trench once in a few days. Now we have laid a drip line. The perennial mulch and drip irrigation put together brings down watering significantly. This circle has gone without water for weeks in a row. The bananas and papayas from this circle are healthy and tasty. We are waiting to see how the coconuts do.

Light And Dark Matters

A few years ago, a disturbing realization came upon me and it was:

Homo sapiens is the only diurnal species that carries out normal daytime activities after sunset.

The discord created by this realization led me to understanding the health implications of altering our environment to suit our ever-changing comfort levels; and also to making changes in our lives to realign ourselves with natural cycles. In this blog post I will write about this journey. The only environmental factor I take into consideration here is light.

According to archaeological records, Homo sapiens started walking the earth nearly 200,000 years ago. We are still biologically the same as those initial men and women. But ever since the advent of artificial lighting, human race doesn't experience natural light and darkness the way it did for thousands of years. 

Thoughts and questions such as these bothered me deeply -- Artificial lighting is hardly a century old technology. What is a century or a few in geological time scales? Not even an insignificant blip! How can our evolutionary needs for light and darkness change in that short amount of time? Won't human body's mechanisms, that have evolved to take in natural light and darkness as their cues, go awry because of our modern ways of living? Natural light and darkness are free for everyone. But still how many actually meet the human body's requirement for these? I moaned for the terrible loss of natural light and darkness from most people's lives. 

First, some science: The color components of visible light include violet, blue, green, yellow, orange and red. White light is a mixture of all these lights. So is the visible light component of sunlight. The blue component of the visible light spectrum is known to wake us up and keep us on our toes by secreting a hormone called cortisol. Following the natural cycle of the sun, as the day wanes so should cortisol production. As the sun sets, in response to darkness a hormone called melatonin gets secreted. This hormone plays a key role in regulating our sleep. This beautiful dance between cortisol and melatonin maintains the day-night cycle and circadian rhythms.

Sleep-wake cycle from Dr. Eliza Klearman's website:

Now let us see how modern ways of living cause disruptions to this optimal cycle. Most of our houses are not built to let much sunlight in. Most people don't get exposed to sunlight in the early morning hours. Also because of being indoors at work or school, there is never enough exposure to sunlight during the day. But there is plenty of exposure to light in the evening hours when our bodies (evolutionarily) can't handle it. Now with the devices we suddenly have bright blue light in our lives in the evening when there used to be moonlight or darkness, just a few decades ago. This delays (may also inhibit) the onset of melatonin production and causes sleep disruption among many other problems. 

A little bit of anatomy: Human eye has two kinds of photoreceptor cells -- rods and cones. Rods are responsible for vision at low light levels and cones function when there is bright light. 

Human settlements now have well-lit homes, roads, public transport and indoor spaces. I was curious to know what happens to rod cells when there is no dim light at all for many years. I couldn't find any pat answer online. My guess is that the rod cells lose their efficacy since they haven't been used. I have seen the difference in night vision between city folks (used to a lot of artificial lights in the evening) and village folks. In the absence of a bright light in the night, the former can't navigate even in their own apartments; a dim light or darkness just doesn't work for them. Village folks on the other hand are undeterred by darkness outdoors and are confident about their unaided night vision.

All this understanding helped us realize that many conscious choices had to be made to realign ourselves to our evolutionary needs. We now live on a farm where we are outdoor a lot during the morning hours, soaking in a lot of sunlight. In the evening hours we have only warm-yellow LED lights (max 3w) lighting our indoors. The blue component of these lights are insignificant. Dev has a pair of blue light blocking glasses which he uses when needed. We have installed a blue light filter software on our computer. In the night, while sleeping, we have no artificial light indoor or outdoor. 

If you are interested in exploring this subject further, here are some pointers:

Dr. Satchin Panda on the importance of darkness

https://www.darksky.org/

Harvard University's research on blue light and sleep

Burning Hills

We get two spells of monsoon every year – southwest (July, August) and northeast (October, November). Thus during the second half of the year, the grasses on the surrounding hills provide food and nourishment to the local cattle.  Some fast-growing native plants have taken root on the hills and have started growing in to young trees. Come February, the effects of the monsoon are long gone. The soils are dry and heat starts going up (above 35 deg C). The beautiful lush green rolling hills are turning brown. The shepherds are beginning to think about buying cattle feed. The desperation for cattle food gets intense as days go by. 

One fine morning we hear crackling sounds in the distance. We know enough now to fear for the lives of all the thousands of creatures that have made their homes in these hills. The sound is now accompanied by smoke. In a few minutes we catch a glimpse of the raging fire. Man made. The fire displays its ferocity, leaping over huge boulders and engulfing everything that is in its way.

A road and a creek, approximately 300 meters, between us and the foothills of the burning hills. From the comforts of our house we helplessly watch the fire sweep from west to east. The scale of this fire makes it one of the most horrible and disturbing sights. The hills that were green in the morning are burnt to ashes in less than an hour. Grasses, young plants, thorny trees, nests, young hatch-lings, eggs, bugs, worms, snakes, wild hares. All wiped clean. Just so there can be new blades of fresh grass, if and when there are summer showers. The new growth can then feed the cattle for some time before the next monsoon sets in. Also walking up and down the burned hills will now be easier and less hazardous. This is a typical shepherd’s way of thinking.

Seven years ago when we came here looking for land I saw this man-made fire for the first time in my life. It left me unsettled for many days. I felt compelled to do something about it. But the ease and discreetness with which someone could destroy the life on the hills soon put things in perspective.
Wind, rain and birds ensure that a good mix of native plants come up on the hills. Why can’t these hills be allowed to have native trees grow big and tall? Those trees can then be lopped and fed to the cattle. After all, the native trees and shrubs (neem, palm, teak, muddy, avaram, caloptropis g., dodonaea v., Acacia spp.) don’t take very long to get well established. If only small sections of these hills can be left alone, untouched by humans (and the fire they make) we can create a paradise around us. But the growing demands for milk and meat won’t let that happen.
Such is the tragedy of the commons.

-- Hema

Raja's Tree

Raja and his brother live on the same street as us. Their parents are weavers who work on power looms. Typically weavers here have one or two power looms installed in their houses. It is a distributed factory setup. The woven fabric, lungis, are picked up by middlemen and sold to agents further up the chain. A vast majority of these weavers are illiterate. They get the looms installed by borrowing a big lump sum.  They make about Rs. 8000 per month for their labour.

The traditional house design for the weaving community involved one or two courtyards and rooms on the front and back of the courtyard(s). These wall to wall houses used to have a pitched roof covered with country tiles. The new settlements however are devoid of these features. The weavers live in houses built with bricks or cement blocks with an asbestos sheet roof. It seems to me that their houses are built to house the looms. There hasn’t been much thought to make the houses more livable for their human inhabitants. 

Raja’s parents moved in to this neighbourhood six years ago. They accidentally planted a Pongamia tree in front of their house. It is right next to their only water source. This tree is a part of their everyday lives as in the pictures below:

Enjoying the tree's shade with friends and relatives

Up a tree-house made with sticks

The mom washes clothes and the dishes under the tree

Putting the baby to sleep

Parking, socializing and also retiring (when they bring their cot out here)

This tree has been an indispensable extension of their house, moderating temperature even when it was blazing 110 deg hot. Really wish there were more trees in all our neighbourhoods.

-- Hema