Superior Court of California, County of El Dorado. To preserve and enhance the rule of law in El Dorado County by providing all persons a fair, efficient, and accessible forum for resolving disputes, protecting public safety, and righting wrongs.
The Earthâs atmosphere is 78 percent nitrogen, 21 percent oxygen and 1 percent other gases, including about 0.04 percent carbon dioxide.And yes, Earthâs CO2 concentration stood at 400 parts per million in May 2015.Earthâs CO2 levels have been increasing in recent decades due to human activities and also natural factors, and some estimates say as little as 3 or 4 percent of carbon dioxide in the atmosphere is due to humans.nd yes, Earthâs CO2 concentration stood at 400 parts per million in May 2015. Earthâs CO2 levels have been increasing in recent decades due to human activities and also natural factors, and some estimates say as little as 3 or 4 percent of carbon dioxide in the atmosphere is due to humans.
Carbon dioxide CO2 and carbon monoxide CO are sometimes confused. They are quite different in their effects on humans. Carbon dioxide CO2 is present in the atmosphere today at 385 parts per million (by volume) or 0.039 percent. 50 years ago it was 280 parts per million. The increase is caused by people burning things, especially fuels - coal, oil, and natural gas, especially coal.