Here’s what you need to know about the new Paris climate agreement

By Ben Adler

PARIS, France — The Paris Agreement to address climate change, adopted on Saturday, will be remembered as a big step forward and at the same time a frustrating set of compromises and omissions.

The COP21 conference brought every country to the table, they all accepted the science of climate change, and they agreed to work together to do something about it. But some proved more ambitious than others, and the rich countries didn’t come up with enough money to get the best deal possible.