Global Warming and Greenhouse Gases
These gases known as greenhouse gases and together they keep the temperature of the earth in comfortable 15 degrees Celsius, without which they, his Earth - 18 degrees Celsius cold. Since the pre-industrial times usually taken in order to be around 1750 of global warming, we know from Eiskern save that levels of carbon dioxide (CO2) PPMs were around 280, the 280 parts of CO2 per million parts air. Given ongoing industrialization mankind started to land more intensively than ever before to manage received, deforestation for agriculture and the regulations and since then around 1850 or so, burn fossil fuels for energy and transportation, added considerably greenhouse gas levels, particularly CO2.