Oceans cover more than 70 percent of Earth and are vital to life. For three
billion people, fish is a primary source of protein, and 12 percent of the world’s
population makes a living by fishing and aquaculture. Key indicators of how
climate change is affecting oceans include heat, sea level, coastal flooding,
and ocean acidity. How are these changes affecting the food system?
As levels of carbon dioxide increase in the atmosphere,
oceans absorb more of it. The increase in carbon
changes ocean chemistry, increasing acidity.
How does this affect marine life?
What’s causing bleaching of
coral reefs and what impact does
it have on the food system?
Something happened to the lobsters
in Long Island Sound. They were
disappearing. What was going on?