M14 Shooter
The Light of Truth
- Sep 26, 2007
- 37,507
- 10,690
Atmospheric co2 levels are increasing at about 2ppm, or 15 billion tons of co2 per year.
1: What is the current level of C0O2 in the atmosphere?
2: What was the per-year level of increase in 1950, 1900, 1850, 1800?
3: What is the per-year emission of CO2 from natural sources?