Earthling Letter # 4 – Seeing GREEN!

Jeff & Susan • May 11, 2015

Greetings Earthlings! I’m seeing GREEN!

Winter was coming to an end in the North east of the United States when I arrived last week. All the trees and shrubs were shades of brown and grey except the plants we call ‘evergreen’. The sun shown on the fine branch tips and they flashed in the wind like they were made of steel. All the plants and trees were still deep in winter sleep. Now, two weeks later, everything is turning GREEN. Trees and plants are flexing and seem to be sighing in the warming air. First, the green turned up in the pasture grasses. Then, at the tips of some trees fat green buds began to appear. A drawing of a tree branch with buds on it Finally, so many buds had opened that a milky haze of green showed against the blue sky.

A drawing of trees with a blue sky in the background

Suddenly, every plant and tree is boiling up with fresh bright GREEN! Why is this happening? Why all this GREEN? There is a word that we have created for this greening. It is the most important biological process on Earth. The word is, photosynthesis. (from the Greek word, ‘phos’ which means light and a Greek/Latin word, ‘syn’ which means to put or place — ‘light placing’). Photosynthesis is the process by which plants and trees use sunlight to make food for themselves from carbon dioxide and water.

Now, let’s get back to that green color. Leaves have special structures within them that we call chloroplasts. (chloros is from a Greek word that means green and plast, is from the Greek word, plastos, which means, to form. “green forming”).

A cartoon drawing of a chloroplast full of chlorophyll.

These make up the photosynthesizing system within the leaf. They convert sunlight into energy the plant can use. But they are very picky about which colors of sun light they will ‘eat’. Plants mostly prefer red and blue wavelengths ( light moves)! of sun light to use for their photosynthesis. Just like you might prefer a candy that is red or purple. In this photo below  you can see the colors of light that plants absorb.

A person is standing in a room with purple lights on plants.

These wavelengths occur at either end of the light spectrum. All the other colors of the spectrum are rejected by the plant and so they are there for us to see! We see only the reflected colors. The green is not “in” the leaf. The surface of the leaf is reflecting the wavelengths we see as green and absorbing all the rest. This is why plants appear green to us. Wait, LIGHT SPECTRUM, what is that?

The spectrum of visible light (the light our eyes can see) is very organized and can be understood as an arch of colors — each, a separate color band. When you see a rainbow you are seeing the light spectrum displayed in the sky!

A child 's drawing of a rainbow on a white background

The absorbing (soaking up) and reflecting (revealing) of colors of the light spectrum make the colors we see when we look around us. Our eyes can see only a portion of the all the colors the light spectrum makes.

A rainbow with visible light and invisible light on a white background.

By the way, there are insects that can see colors of light that we can’t see! Just like some animals, dogs and bats for instance, can hear sounds we can’t hear.

What else is needed for photosynthesis to happen? Several things need to be available to a plant in order for it to photosynthesize. It is like a recipe. First, as described above, sunlight, then the gas carbon dioxide (a plant ‘breaths’ this from the air) and water and minerals. Sunlight provides the energy( we call this energy, Jules that runs the little cell ‘motors’ (chloroplasts) of the leaves while they combine carbon dioxide and, through the plant’s roots, the water and minerals that are stored in soil. When these ingredients are all present in the leaves, they can photosynthesize. This process produces food for the plant and (lucky for us) the gas oxygen (a left over of photosynthesis), which we need to breath!

Photosynthesis is underway as soon as we see green. Here is an activity you can do and observe what happens to plants as they photosynthesize. When you go for a walk in early spring before every thing starts to turn green, mark plants and trees that interest you by tying a short length of colored yarn to a branch or stem.

A drawing of a plant with a red s on it

Make some drawings of these plants and take notes about what you see. Make a map of where you go on your walk and where you left marks. Things will be changing so fast in the spring that you may not recognize where you walked when you return a few days or weeks later. You will need your map! When you return to your marked plants you will see surprising changes in them.

A drawing of a flower with a red bow on it

You may want to make drawings and notes in a ‘nature notebook’ (a small note pad you can fit in your pocket) about the changes you see. Also be aware of the insects and other animals that are nearby and think about what they are doing. Is anything they are up to important for the plants you are observing? Even if it is not spring when you go for your walk, you can create ‘observation maps’ for any nature walk, at any season. Fall is another season when changes in plants happen pretty fast. The trees and plants reveal their ‘true colors’ as they prepare to fall to the ground. Once photosynthesis stops (plants and trees sense the cold winter coming) leaves loose their green color and show the stain of what they were absorbing all through the growing season. They are bright with the colors of red, orange, purple and yellow.

A drawing of leaves with the number 9 in the corner

Their secret is out!

But let’s think about those evergreens a little more. How do they stay green all winter and why? The needles of evergreens are leaves rolled up very tightly!

A drawing of a pine tree branch with a blue sky in the background.

This allows them to conserve (save) water. Evaporation (disappearance of moisture) from the leaves is slowed down, because there is less surface area from which moisture can escape. This is very important (we know water is essential for photosynthesis). Evergreen needles also have a waxy coating to help to slow water loss. Here is a simple experiment you can do so you can see why that works so well. Fill two jars of the same size with the same amount of water and mark the waterline on the outside of the jar with a marker or piece of tape. Now cover one jar tightly with a piece of plastic wrap. Wrap a rubber band around the mouth of the jar to seal the plastic wrap tightly over the opening of the jar. Leave the other jar open to the air. Check your jars each day and you will notice the water in the open jar is disappearing and the water in the sealed jar is staying the same. This is how wax on the needles of evergreens helps to keep water from evaporating.
Evergreen trees evolved (developed slowly) in cold northern climates. In order to survive in areas that have a short growing season (a very short period of warm, sunny weather in which to grow), they need to gather light and photosynthesize all year long. They have to eat! And, water needs to be available to them throughout the year. They can make their food (photosynthesize) most of the winter as long as the soil doesn’t stay frozen too long. Freezing makes it hard for them to get liquid water out of the soil. Evergreens still need some water in winter, but not a lot.

A drawing of a pine tree in a green frame

Why is photosynthesis the most important biological process on Earth? I mentioned that oxygen is a by product (something the plant does not need) of photosynthesis. Well, it turns out that humans need to breath in oxygen from the air in order to survive (live). And (lucky for plants and trees), the carbon dioxide they need to survive, we exhale as a by product of our breathing. We help each other out! We also depend on plants and trees for all of our food. There is nothing that we eat that did not have, at some point, plant beginnings which got their energy from the sun. (See if you can trace the foods you like to eat back to the sun…) The clothes we wear are made from plant sources (cotton, wool (sheep eat grass), linen) and the houses we live in are made with lumber we get from trees. We can trace all the things we need for survival back to the energy from the sun and the photosynthesis of plants.
Our sun has given us all life, through Photosynthesis.

This has been a long letter and with lot of information for you to absorb. But I know you can do it! You are like the leaves in spring growing bigger and bigger and absorbing more and more of what helps you grow. Information is like sunlight for your brain! We will return again to the subject of photosynthesis someday. There are still plenty of things that need figuring out. Plants have been on the earth much longer than we have and have had a lot of time (about 700 million years) to develop really amazing ways to survive. So, till next time, keep on being a good ‘noticer’ and ask lots of questions!

June 15, 2026
Returning to Caron, Philippines. Several miles off shore, while passing the Island of Borneo, we observed a surreal sight. Stationary skeletal structures on the horizon, some of them with flames shooting from a long up tilted pipe, like a dragon breathing fire. These were oil derricks 30 or more miles from the coast of Brunei burning off natural gas, a volatile by-product of oil drilling. They come into view, are left behind, and new ones appear, as we progress. At least 30 derricks paralleled our course. Normally there is nothing to see except an occasional container ship. So this is exciting. I read that there are at least 200 of them in this vicinity. Also, some have been decommissioned and made into marine habitats, (dismantled and sunk), by the Brunei government who deploys and maintains these derricks. They are a major exporter of oil and share the Island of Borneo with Malaysia and the Philippines. This experience of observing oil drilling activities during an oil crisis feels a bit surreal.
June 8, 2026
The approach to Coron, Philippines. Mountains all around, some narrow cream colored strips of beach. Single person open boats drift here and there, some are paddled. The larger colorful outrigger boats glide by like water spiders, leaving no wake. Clouds have bunched and swelled above the land taking up a lot of the sky blue sky. This is the rainy season. Our ship is drifting slowly. We are not expected at port for a while. The opening of the harbor is in sight and a green entrance marker is visible.
June 8, 2026
In its present form, Capitalism cannot easily fix the ongoing problems of its own making. It has become an economic formula for much of World commerce. Its empowerment of the often unrestrained pursuit of profit, guided by the optional moral consciences of some individuals, businesses and nations has allowed for broad interpretation resulting in vast destructive behavior. We have been able to personally visit about forty countries during more than a year of continuous travel. Our goal is to complete one circumnavigation within another two years. This trip has developed into a unique opportunity to research World economies. Which was our hope at the onset. We are now in Southeast Asia and it is possible to make a few observations. The opening of ‘free markets’ with Capitalism worldwide has become a modern form of Colonialism. Countries that are thriving go into developing nations with the huge advantage of currency value and technological superiority. They essentially locate in each country resources that can be monetized and profit made, hire employees for less than they can in their home countries, then take the majority of the profit out of the host country. This dramatically changes the existing natural balance in most of these developing countries and thrusts them into the financially unbalanced world of free market capitalism for which they are not prepared and have no immunity. Where we have traveled so far, many developing countries are turned into tourist attractions and the young people are mostly encouraged to aspire to ‘hospitality’ work, keeping their expectations low. The following is a short summary of how Capitalism has evolved in recent history. People have benefited for many hundreds of years from the innovation and competition inherent in the practice of Capitalism. But now the symptoms of its flaws are obvious and too damaging to ignore. When Capitalism fails from its own weaknesses it can, in its final form, become fascism; dictatorial power, militarism, an autocracy that crushes opposition. It makes a few people very rich and creates a dictator to protect their wealth and influence resulting in an ultra nationalist state. When a country is completely invested in Capitalism, like the US, it must constantly monitor its military and financial power in the World. Looking back; the US petro dollar was established during the 1973 energy crisis by Nixon/Kissinger, in order to keep the US dollar strong next to other currencies. Controlling the high value of a nation's currency is essential for Capitalism to thrive and it was clear that oil was the blood of World economies. Arab oil traded for dollars in exchange for US military protection was the deal with the Saudi government. Because oil energy is a major labor saving device and creates exponential productivity and wealth, trading dollars for oil made the US Dollar the “preferred currency” and kept its value high. In 2024 the agreement with Saudi Arabia expired because the US could no longer protect Arab nations militarily. Also the rise of renewable energies challenged oil supremacy. One of Capitalism’s characteristics is to concentrate wealth in the hands of a few and encourage profit making over stabilization of a good quality of life for the rest of humanity. Over emphasis on profit making has suppressed education, healthcare and general dignified survival wherever it dominates. Wealth is not a barometer of intelligence or happiness. It is an advantage in Capitalist societies that opens opportunities in education and business. All it takes is a few powerful people to keep Capitalism going, apparently the richest 10% of the World population. That Capitalism has lasted so long is in part a testimony to its ability to keep adapting and improving on its least attractive strengths: control over the means of production, control over the value of currencies, amorality, exploitation, and a powerful military. Capitalism is presently a pervasive economic belief system and acts as a powerful temptation and World influence. Its social impact is on par with Communism, Democracy, Religiosity, Socialism, Liberalism, Conservativism, etc. This has again been made clear by the present oil/food crisis, created by the US/Israel attack on Iran that resulted in Iran closing the Strait of Hormuz. (Was this war a move on the part of the US to control oil and keep the USD strong?) This situation may already be worse than the energy crisis in the 70’s that created the US petro dollar. The World population is larger and more interconnected economically than ever before, making this oil shock even more damaging than the one in the 70’s. Oil is a valuable fair trade commodity. Its locations and price are controlled by a handful of companies and nations. (A common characteristic of Capitalism.) This essential energy source is centralized and vulnerable. The World economic system is in shock and being held hostage to the flow and price of oil. But this time there is a competitor for preferred currency, China's Yuan. Humans have become, over approximately 500 years, adapted to Capitalism. It feels inevitable, no matter what it destroys. It has captured the popular imagination like a religion. But unlike religions it encourages people to cast aside concerns of morality and the fate of humanity. Its symptoms and failures are explained away as the evils inherent in humanity or individual failures. But religions have shown they can evolve. Economics can evolve also. Like the worm of Protestantism that entered the apple of Catholicism, maybe there is a pest that can invade the Capitalist feeding frenzy. This pest could be in the form of a Parallel Currency, that would create, in time, a hybrid World economy dedicated to the dignified survival of all humanity. Any nation or state could introduce a Parallel Currency to be used next to existing currency. A currency printed to provide a base for humanity; the essential needs of life; food, shelter, education and healthcare. Not freedom, not security, but what comes before humanity can have either of these things, survival. Life long access to food, shelter, healthcare and education. There is enough. Basic needs are the least expensive and most abundant things a nation can provide its citizens. The Parallel Currency is a way to pay for it. A few countries are already trying to do this with their tax structures and laws, but a Parallel Currency would do it without taxation or inflation. With a stroke of a pen it can be initiated. It is a separate currency that can only be used for basic needs; their creation and distribution and is destroyed when it reaches a bank so it won't create inflation. It also will not inhibit the positive capabilities of existing currencies. They will function normally. The Parallel Currency would be a closed loop created for dignified human survival. A form of this is already used by the major developed nations to supply and sustain their large militaries. You are provided food, shelter, education and healthcare as long as you are employed by the military. China has built, in its isolation, a successful hybrid of Capitalism and Socialism controlled by its Communist government. In approximately 40 years they have brought their massive population out of poverty and become one of the most technologically advanced nations on the planet. Freedom of speech, freedom of religion are not enough. A government by the people, for the people, must also guarantee freedom from starvation, homelessness, and freedom from ignorance and curable illness. All things for which we have, as a human species, developed remedies. This is the overarching injustice of Capitalism. That these remedies exist and have been largely made possible by Capitalism but are not shared with all humanity. People have evolved beyond the war response to disagreements, but governments have not. By eliminating the tensions created by economic inequality with a Parallel Currency dedicated to providing survival needs Worldwide it is possible to see a new way. It is our responsibility to help economics and governments evolve with us. Susan Caumont Renew the Earth, renewthe-earth.org
May 18, 2026
They have only recently become independent; 2002. The struggle and tragedy of this objective still vibrates in the air and has left scars. Poverty, deteriorating roads and sidewalks, buildings and ambitions. In the intense heat of the day, most shops can't afford to have or to turn on air-conditioning. A large tree shaded park where an unchained warrior statue shouts to the sky, is heavily used by all ages.
May 8, 2026
Our arrival on the island of Waingapo is welcomed with a red carpet. The carpet leads expectantly to where several men wait, holding 11” by 14” laminated photo narratives of tours they can take you on and tell you about with three word comments in English. Past them chairs, also covered in red, have been set up under an awning for our “dignitaries.” Beside these are a few tables with souvenirs. Several young boys wait on either side of the red carpet to perform for the passengers as they disembark. Many local people are also waiting in the growing heat for the Exodus of the passengers. Ours may be the first cruise ship that has stopped at their island. One passenger finally emerges and avoids the carpet and the boys. They are shocked. Eventually a group does come out together and allow themselves to be greeted and entertained. They have selfies taken with the boys. Then return to walking and looking into the screens of their phones, bowed over them like they are praying After exiting the port area there is a long walk through parked cars, trucks and taxi drivers out to the crumbling asphalt of the main road. It is lined with vendors, a gauntlet of drinks and snacks. A ferry is unloading, people and motorcycles are streaming out. These are the customers the vendors are waiting for. A large number of motorcycles are parked on either side of the road waiting for their owners. We make our way between the crowds of people and vehicles to the hot uphill slope of the road that goes somewhere, which is hidden from sight by bunches of dark green trees. Shortly we are defeated by the heat and start back. Access to other parts of the island that are considered appropriate for tourists require a taxi, negotiations for price and where it will go. Generally we try to avoid this and are most interested in what we can observe and who we can meet by walking. We talk to a motorcyclist on our way back who says he has access to local Royalty. Jeff describes the Parallel Currency concept to him and gives him our website card. I am also able to pick up some interesting scraps of paper from the garbage that lines the road. I use their patterns and color to create abstract images on postcards I make to send to friends and family. In the end this has turned out to be a very satisfactory walk. There are very few palm trees here, which is remarkable. A different ecosystem than Bali. The mountains are low, flat topped and shelved. They define the spine of the island. Bunches of dark green trees patchwork the slopes getting denser as they approach the water. The water is blue/green and clear, fishing boats are high prowed and the smaller boats have outriggers made of bent PVC tubing. It is now early evening and the sun is low. I am walking around the outside deck of our ship taking in the 360 degree view and the sounds. On the starboard side a band is playing on shore and a singer starts up a contemporary tune. As I round the bow a chant drifts through the dusk, the Muslim evening prayer. This dominates the port side then at the stern blends with the music on shore, which dominates on the starboard side. Round and round as I walk they alternately blend and retreat, blend and retreat. I notice as I look out over the port side that the tide has gone out and long flats of seaweed, rocks and soil are exposed. People have walked out onto these surfaces to harvest edible sea life, gathering them into plastic buckets and bags. I feel like I am watching history.
May 4, 2026
We dock at the port of Bali. It is too hot and far to walk anywhere, so we hired a taxi driver for the day and invited our friend Wido to come with us. He is Indonesian, his home is in Jakarta and this is his first visit to Bali. Indonesia is a country of 17,508 islands. There is a governor on each one who communicates with the central government. Few Indonesians have visited every island. What strikes me immediately as our driver, Budi, finds his way through the dense traffic, is the careful weeding of the center island between opposing lanes. This is exceptional because of the extreme heat. No one could be doing this during the day. People must come out at night, when it is cooler, and meticulously pull the weeds. It becomes clear as the day passes and more and more of Bali is revealed, that attention to detail and extreme patience is a characteristic of the Balinese. The traffic is a dense mix of motorcycles, cars and trucks.
April 28, 2026
Like an exotic jewel set in the archipelago of Indonesia, Bali glitters and enchants. The Balinese have retained their unique community through intense social/religious bonds, hard work, exceptional talent and great sacrifice through the centuries to become a beautiful, gentle and inspirational community. Now, because of these unique qualities and accomplishments, finally and fatally they have become a primary tourist attraction that presently dominates 80% of their economy. The irony is that this may be the thing that destroys an incredible place and its people that hundreds of years of oppression and wars did not. If they don't soon diversify and return to the trusted systems that meant survival for their society over more than a thousand years Bali will no longer be a wonder of the World. Their unique form of Hinduism understood the root of survival when their irrigation system, subak, was first built. It was defined as a religious object to be venerated and protected with prayer, with temples and maintained by priests. Rooted in the Balinese philosophy, Tri Hita Karana, the principle of achieving harmony between humans, nature and the divine. It was the source of the staple food, rice. Water came from lake Batur, in the crater of the extinct volcano Kintamani, irrigated the hand cleared and formed terraces of rice paddies that descend in beauty and function to the sea. Seedlings hand planted by the women, sheaves of rice attached to the ends of poles carried across the shoulders of the men to the storage huts simple activities, carried out over more than one thousand years, that meant survival for a society. And the ancient kings of Bali also came together to sanction the subak. Agreement between religion and state. A rare thing in history and in the present. So what is happening now? How is tourism threatening the survival of the Bali we have come to know and admire? Aren't people coming to praise and enjoy? Isn't that a good thing? It is not the intentions of the visitors, it is the structures built around tourism that make tourism possible, they have become destructive. Why are they destructive? The answer is water. Because of the demands of hotels and resorts for fresh water, the water table has dropped by around 60%. Into the void presses the salt water of the sea. Not only is the amount of fresh water that feeds the subak compromised it is threatened by salination and made unusable for rice growing. This situation is sometimes referred to as being caught between a rock and a hard place. The government needs to step in and limit or freeze new construction of resorts till a sustainable balance is found. Also, water use needs to be prioritized and rationed for essential use, the subak system as a primary user. Finally, the income from tourism must be distributed back to the Balinese people for their dignified survival and flourishing. The dependency on tourism has created an imbalance. Men can be seen sleeping rough in the parks. There is desperation in the eyes of the women who sell clothing and souvenirs in the outside stalls. The main profession encouraged for children is hospitality work. The majority of profit from tourism needs to be returned to the people. They have earned it, they have built what we admire, they have carried in their hands and hearts the unique social compromise that has survived to this day against impossible odds and now it is being challenged by economic forces, more subtle but no less aggressive and destructive than war. Susan Caumont
April 17, 2026
Sea days pass differently than land days. At sea the ocean and the ship's passengers are the changing features. Land life has extra distractions, vehicles, shops, museums, temples, churches, gardens, bird song, dogs barking, taxi drivers, venders, airplanes, the full extent of human activity. During sea days I prefer to observe the ocean. I am aware of the passengers; like being part of an extended family or small village where you know most of the people a little and a few well. But the opportunity to be on the water for long periods is special. Sometimes, when the ocean is calm, a criss-crossing pattern may be seen on the surface, a delicate weave of vibration. I wonder if marine life is creating it, communicating. Other times the water heaves and agitates like an angry crowd is running here and there under a silk sheet. We sail six days from Adelaide to Fremantle, for the most part we encounter easy swells on this trip. The ocean lets us pass with tranquil, breathing heaves up and down. When we arrive there is an art festival in progress downtown. Crowds of people have traveled by train from the suburbs. We walk in. Some streets are blocked, making way for displays of crafts, performers, food venders and pedestrians. People are all around, eating, talking, buying stuff and watching the performers. Clowns, singers and acrobats compete for attention and overhead huge soap bubbles float, generated by the children nearby. It is a perfect day and everyone is out to have a good time.
April 7, 2026
Our stop in Melbourne was only for a day. There are plans to return after we visit Tasmania, which is just south of Melbourne. When you look at a map you can see where the island broke from Australia, a ragged triangle torn from the continent. England brought their convicts here to establish a penal colony in 1803, (convict transport ended in 1851, 50 years later) the colony eventually became Hobart, the capital city. Convicts were brought by sail. All the way from England around the southernmost tip of Africa, Cape Agulhas. A cape historically known to clipper ship sailors as a significant hazard, notorious for mammoth rogue waves of up to 30 meters (100 feet). What could these unlucky people have done to be banished on such a dangerous trip and so far away to an “uncivilized” island? Turns out prostitution and unwed pregnancy was enough to get sent there if you were a woman. And being an orphan, if you were a child.
March 25, 2026
The yellow pilot boat is approaching. A pilot will be brought onboard to guide our ship through the harbor. As we progress, a stretch of islands pass us on the left then, the coastline, on both sides. Sailboats, white triangles against the dark blue water, shine in the distance. Cliffs drop sheer from the pastureland to the tan beaches. Dark green groves fill the crevasses. We cruise along under the dome of the sky. Soon we will be docked at Port Melbourne, Hobson's Bay, Australia. Living life onboard, traveling around the world, I feel like a spirit watching the living as they go about their activities. I am a temporary exhalation, undetected then gone. But their doings remain in my mind. Humans are so very busy, especially the young adults. It takes significant aging to bring on stillness and reflection. My obscurity can make me sentimental. I feel a general affection for anyone who passes. I saw a baby watching sea gulls eat the French fries that someone had tossed to them. I imagined her forming her own impressions of everything around and not yet named. I wished her well and hoped that the war would end soon.
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