Global warming is not just increasing average temperatures on land, it’s heating up the oceans as well. As marine heat waves become more common, they are disrupting longstanding relationships between species that have come to depend on each other.

Corals may lose the algae living inside of them, causing them to bleach, or even die, often after being hit by more than one heat wave. Large schools of fish move to more comfortable climes, forcing the seabirds that need them to feed their young to fly much longer distances from the shores where their kind has been nesting for ages.

The only sustainable, long-term approach to these issues is to drastically reduce our greenhouse gas emissions. But while