For example, humans have increased atmospheric carbon dioxide by more than 100 parts per million over the past two centuries, causing a global temperature rise of about 0.9 degrees Celsius. (eenews.net)
These pledges constitute a good foundation, but are not enough to keep the world below the internationally agreed maximum global average temperature rise of 2 degrees Celsius. (globaleducationmagazine.com)
But how much worse will it get as temperatures rise in the future? (ossfoundation.us)