The document discusses the role of food and stewardship in combating climate change through improved soil health. It highlights Dr. Hansen's proposal to reduce atmospheric carbon dioxide to 350 ppm by cutting coal emissions and enhancing carbon storage in trees and soil via agricultural practices. A drawdown of 50 ppm through these methods is deemed feasible.

1. The Carbon Ranch:
Using Food and Stewardship
To Build Soil and Fight Climate Change

3. THE QUIVIRA
COALITION

5. Carbon dioxide concentration in the atmosphere in parts-per-million

8. Dr. Hansen proposed an answer: “cut off the largest source
of these emissions – coal – and allow CO2 to drop back
down to 350 ppm through agricultural and forestry practices
that increase carbon storage in trees and soil.”
Hansen specifically says that a 50 ppm drawdown via
forestry and agricultural practices is quite plausible.

13. Thank You