(Credit: Gerd Altmann / Pixabay)
“In the deep geological past, atmospheric CO2 has sometimes been much higher than today; for example, about 500 million years ago there was over 15 times as much atmospheric CO2 as there is now. On the other hand, until human beings began to burn large amounts of fossil fuel in the late eighteenth century, CO2 had been stable for about 20 million years.” These and other historical facts about CO2 emission published by Encyclopedia.com, the Internet's premier collection of online encyclopedias, which provides you reference entries from credible, published sources like Oxford University Press and Columbia Encyclopedia. Read the Article...
A Brief History of CO2 Emissions - A film by the University of Applied Sciences Potsdam (FHP) and the Potsdam Institute for Climate Impact Research (PIK)
