Growing coastal flooding is inevitable, and damage to corals and other marine life has already been unleashed. But scientists say the world still has time to avert even more severe consequences. Lightning is seen over the Atlantic Ocean on Sept. 4 as Hurricane Dorian approaches Carolina Beach, N.C. (Elijah Nouvelage/For The Washington Post) September 25 Climate change is already having staggering effects on oceans and ice-filled regions that encompass 80 percent of the Earth, and future damage from rising seas and melting glaciers is now all but certain, according to a sobering new report from the United Nations. The warming climate is killing coral reefs, supercharging monster storms, and fueling deadly marine heat waves and record losses of sea ice. And Wednesday’s report on the world’s oceans, glaciers, polar regions and ice sheets finds that such effects foreshadow a more catastrophic future as long as greenhouse gas emissions remain […]