02
Dec
The climate is changing, as it has periodically over the millennia.
But in the 21st century and the latter part of the 20th century, human activities— particularly the combustion of fossil fuels—are primarily responsible for the carbon dioxide and other greenhouse gas (GHG) emissions that are accelerating the rate of climate change, heating the earth’s surface and atmosphere sufficiently totrigger potentially catastrophic consequences for the planet and its populations.
Unless global emissions are reduced by at least half of the 1990 levels by 2050, a temperature rise of 2° C (3.6°...