We need look no further than the ocean to understand the urgent need to drastically reduce the carbon pollution caused by our addiction to fossil fuels. It is fueling ocean acidification, which is threatening the ability of some plankton, shellfish and coral to form skeletons — all of which form the base of the underwater food chain or provide important habitat for many species. Meanwhile, it is also contributing to climate change, which is raising ocean temperatures — bleaching coral reefs, displacing and even killing off sea life. It’s a one-two punch that is hitting the world’s oceans hard.