Climate scientists propose new explanation for the rapid changes to the ocean carbon sink in the 1990s.
Researchers discover hot spot off the coast of Italy with up to 1.9 million pieces of plastic per square meter.
Some bubbles grow to be more than a quarter-mile across.
Researchers are learning how to cope with the arrival of the sargassum’s “brown tide."
These massive holes in the ice, known as polynyas, may appear more often as climate change advances.
The Ross Ice Shelf appears to be melting in previously unknown ways. The same mechanisms could be melting other giant ice shelves, too.