The area of the Arctic Ocean experiencing acidification due to excess carbon dioxide is growing rapidly. Communities dependent on shellfish and other marine resources could be at risk.
Following years of exceptional drought, California's southeastern deserts were awash in a superbloom of short-lived but spectacular wildflowers in March 2017.
Compared to their smooth appearance at other times of year, the lines tracking Arctic and Antarctic sea ice extent become wiggly. Why is that?
Now that the 2016-2017 winter is over with, it's time to look back and see what happened. Did our winter outlook do well?
Despite being at opposite points of the annual cycle, the Arctic and Antarctic had something in common in March 2017: record-low sea ice extents.