What does the US withdrawal from the Paris climate change accord mean?

WASHINGTON (AP) — President Donald Trump announced that the United States is withdrawing from the Paris climate change accord.
Now what does this mean for the rapidly heating Earth?
Here’s a guide to what’s in the Paris agreement, what’s going on with global warming, and what might happen if the rest of the world keeps fighting man-made climate change and the U.S. stays partially or completely on the sidelines.
WHAT IS THE PARIS AGREEMENT TRYING TO DO?
The 2015 agreement