Climate-changed oceans will mess with life above and below water


Editor’s note: We’re publishing a series from The Story Group that shows Americans on the front lines of climate change. The videos put faces to the warnings in the latest National Climate Assessment.

“If the average temperature of a large body of water increases, that’s an enormous amount of heat content,” says Andrew Rosenberg, one of the convening lead authors of the National Climate Assessment’s Oceans chapter. Seas are becoming warmer and more acidic as they absorb atmospheric heat and CO2, which broadly affects ocean circulation, chemistry, ecosystems, and marine life; ocean acidification is already starting to dissolve the shells of small marine organisms.

Rising sea surface temperatures have also been linked with increasing levels and ranges of diseases in people and marine life. In this video, Rosenberg discusses how human-caused climate change is transforming the oceans that make up 70 percent of the Earth’s surface.

View original post

The Himalaya shows off how fast it can melt, too


Last week, we got the news that the West Antarctic ice sheet is ditching us. Then, on Sunday, another fresh study told us that Greenland is also melting away rather fast. And now glaciology brings us a new report, on what’s going on at the so-called “third pole” (so called because it has more snow and ice than anywhere outside of the polar regions): the Himalaya mountain range. Seemingly unwilling to get left behind, it’s been shedding its icy stocks, too.

The report, from the International Centre for Integrated Mountain Development (ICMOD), found that Nepal’s glaciers lost 24 percent of their volume between 1977 and 2010. It did also find that the number of glaciers increased by 11 percent over that period, but it turns out even that’s not good news! It attributes the increase to the fact that the big glaciers tend to break into smaller ones once they become…

View original post 140 more words