deal that's fair. >> but in poland at an all-important climate conference, that deal is alive and well. the u.s. still on board. delegates from nearly 200 countries okayed the rules to put the paris climate accord into action prompting celebrations as you'll see. those countries, including the u.s., cannot actually leave the agreement untiling 2020. let's go live to poland to that conference. cnn's nic payton walsh has been watching this live. tell us what came out of these agreements. >> reporter: well, it is certainly a piece of good news frankly for the planet because there was a moment during these last two weeks before negotiations where it was possible people were fearing we wouldn't see this.