But scientists are having a hard time illustrating these problems as shifting baselines continue to redefine what is considered normal for reef health.
A less icy Arctic will be an economic boon for some, but marine wildlife experts are focused on the increased risks more ships will pose to certain polar species.
Alaska Airlines has become the first airline to renounce the use of plastic straws in an effort to raise awareness about the use of single-use plastics that pollute the world's oceans.