Solar energy, photosynthesis, internal & external sources of energy on earth, food chain, carbon dioxide, Keeling Curve, emissions from various sources, methane, greenhouse gases, fossil fuels: coal, oil, natural gas, carbon capture, carbon sinks, slow & fast carbon cycles, atmospheric carbon & climate, drawdown, Project Drawdown

Music
Ry Cooder + Ali Farka Touré: Talking Timbuktu

What’sNews?
Presentation by Val Yang
https://docs.google.com/presentation/d/17TZlf1FiA1sZCQ0LlEKlne_mtiF1yc_FH7SUDWwLmJs/edit#slide=id.p

Box Breathing

Navy SEALs Use a Technique Called ‘Box Breathing’ To Relieve Stress and So Can You

https://hbr.org/2020/09/research-why-breathing-is-so-effective-at-reducing-stress?utm_source=pocket-newtab
How does this work? Changing the rhythm of your breath can signal relaxation, slowing your heart rate and stimulating the vagus nerve, which runs from the brain stem to the abdomen, and is part of the parasympathetic nervous system, which is responsible for the body’s “rest and digest” activities (in contrast to the sympathetic nervous system, which regulates many of our “fight or flight” responses). Triggering your parasympathetic nervous system helps you start to calm down. You feel better. And your ability to think rationally returns.
To get an idea of how breathing can calm you down, try changing the ratio of your inhale to exhale. This approach is one of several common practices that use breathing to reduce stress. When you inhale, your heart rate speeds up. When you exhale, it slows down. Breathing in for a count of four and out for a count of eight for just a few minutes can start to calm your nervous system. Remember: when you feel agitated, lengthen your exhales.

The Carbon Cycle
★ Carbon Dioxide in Atmosphere Hits Record High Despite Pandemic Dip (7 June 2021)

The Carbon Cycle: Key to understanding climate change-carbon sinks (The Economist) 7:43

★ Simple, clear written explanation of carbon cycle
https://scied.ucar.edu/carbon-cycle
★ NASA: Real World: The Carbon Cycle 5:43

★ Carbon Cycle diagram (slow & fast) with numbers
https://scied.ucar.edu/image/carbon-cycle-diagram-doe-numbers
Carbon cycle 3D animation 5:30 (maybe)

Soil Carbon Sequestration & the Soil Food Web

Carbon and humans
★ Fossil Fuels 101  2:42

★ EPA: greenhouse gases 101
https://www.epa.gov/ghgemissions/overview-greenhouse-gases
★ Carbon Visuals: NYC
http://www.carbonvisuals.com/projects/new-yorks-carbon-emissions-in-real-time

★ Keeling Curve diagram + explanation
https://scied.ucar.edu/learning-zone/climate-change-impacts/changing-carbon-cycle
Carbon capture + storage

★ NSF: About Ice Cores
https://icecores.org/about-ice-cores