It’s easy to lose heart about our prospects for limiting climate change. The US has pulled out of international climate negotiations. Most of the countries that joined the Paris Agreement have missed targets , targets that weren’t aggressive enough in the first place. The 1.5 °C target is already basically out of reach. Is time to give up on slowing climate change and focus on adapting to it? The answer is no. Here’s why.Climate change is a matter of degrees. That sounds like a truism or a pun, but it’s true in a deeper sense. There is no point past which further warming becomes irrelevant. degree, and every fraction of a degree makes things that much worse.