A temperature increase of more than about 2° C will with high likelyhood lead to dramatic effects on the environment This is the reason why the European community suggests to limit the global warming to max 2° C This means according to the above graph limiting the greenhouse gas concentration in the atmosphere to about 450 ppm CO2 equivalentsMain Greenhouse Gases Multiple gases contribute to the greenhouse effect that sets Earth's temperature over geologic time Small changes in the atmospheric concentration of these gases can lead to changes in temperature that make the difference between ice ages when mastodons roamed the Earth, and the sweltering heat in which the dinosaurs lived The NOAA/NCEI Climate Extremes Index (CEI) tracks extreme weather events related to temperature, drought, heavy precipitation, and
Greenhouse Gases Australian Air Quality Group Woodsmoke
