Practice - Current Practices in need of Critical Appreciation
◀∎ Climate Initiative / Practice ∎▶
He who lives in harmony with himself lives in harmony with the universe. - Marcus Aurelius
Globally we are responsible for ~53 billion tons of greenhouse gases entering our atmosphere and oceans each year, and since the late 19th century we have raised the CO2 concentration of our atmosphere from ~280 parts per million (ppm) to ~420 ppm, and the average global temperature by ~1.3 °C,
Meat and fish consumption results in the culling of ~150 billion animals annually. We use ~12x as much land to produce meat, dairy and feedstock than we would otherwise use to feed one person on a plant-based diet, and it takes ~1,800 gallons of water to produce one pound of beef. The wildlife population has decreased by ~70% in the last half century.
The human immune system is compromised by excessive consumption of meat, dairy, refined carbohydrates, and the additives in processed foods, leading to health outcomes that are degraded compared to people living in the blue zones, where healthspan equals lifespan, and life expectancy is ~10 years longer than the general population. Their diet is mostly whole food, plant-based and there are negligible deaths from the top four causes of mortality in the developed world.
Medical doctors receive ~20 contact hours of nutritional instruction in four years of medical school (in the US). ~75% of the disease burden, and ~85% of all deaths, are related to diet and lifestyle. Nothing appears to be more important than nutrition for optimal mental and physical health.
Modern agricultural monoculture progressively degrades the health of our topsoil, increasing water consumption and pollution via run-off, and is liable to crop failure simply due to lack of diversity of genetic material. Many food additives and pollutants cause inflammation, disrupting the immune and endocrine systems; an immune system that would otherwise eliminate ~10K cancer cells per day.
Emissions in electricity and heat generation, are generally made by machines that use fossil fuels as the energy source. Power plants cannot simply be turned off and on again; there are costs to overproducing to meet peak demand. There is no widespread adoption of carbon-capture technologies. Power plant operating efficiency is ~33%, much less if you account for all the losses; ~2% for a light bulb. Transportation does a little better, the overall automobile efficiency from crude oil to transmission, is ~10%.
We are over-fishing the oceans and eliminating by-catch in such quantity that the global fishing industry is expected to collapse by ~2050. Around ~90% of the large fish are gone due to industrial fishing practices. Algae and phytoplankton produce ~50% of the atmospheric oxygen; without fish to provide important nutrients, this ability may too be compromised. This is problematic since humans have evolved to breathe an atmosphere of ~21% oxygen +/-2%.
We were believed to be in the interglacial Holocene Era, heading for a new ice age. Now, in the Anthropocene Era (c. 1950-), we may be responsible for the melting of all land ice which, depending on our response, is expected to increase sea-level by ~200ft; and ~6ft by the end of the century. This is significant because many of our population centers are located on river estuaries, with ~10ft elevation.
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