Stitch In Time Will Bring Pieces Of Puzzle Together

The best estimate we have is that average surface temperatures will rise by 1.8 to 3.5 degrees by the end of the century. This is going to happen under present conditions. Under the more challenging scenario, inland temperatures will rise even more - by about 5 degrees. If this occurs, living on parts of our globe will be difficult for humans and for the survival of many ecosystems.