China's ratification of the Paris Climate Accord and the U.S.'s indication that it will sign the agreement keeps the Paris process alive but does not solve the problem as most of the heavy lifting is still to come.

With a maximum altitude of 18 feet (5.5 M) above sea level and in a prime hurricane pathway, the Florida Keys are particular susceptible to climate change.

While NASA predicts that 2016 will be the hottest year ever, only 22 of the 197 parties to the Paris agreement have ratified it and since the largest nations have not yet done so, these countries add up to only 1% of global emissions.