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.
The concentration of â¦ carbon dioxide (CO2) in Earth's atmosphere has reached 391 ppm (parts per million) as of October 2012. ((391-260)/391)*100 = 33.50 Thus there has been a 33.5% increase in the levels of CO2 in Earth's atmosphere over the past 250 years.ver the past 50 years, atmospheric carbon dioxide concentrations  have increased from approximately 320 parts per million (ppm) in  1958 to approx. 400 ppm (parts per milli â¦ on) or 0.04% in 2013.