On April 22 – Earth Day – representatives from more than 100 countries will gather at the United Nations in New York to sign the Paris Agreement on climate change. It is expected to be the largest single-day signing in the history of international accords. The terminology behind international agreements can be complicated, convoluted, and downright unappealing. But this could also be one of our generation’s most important international agreements, so it’s time to break through the jargon and get to know the Paris climate agreement. Let’s take on four of the questions you may be asking right now: