Chemicals that deplete Earth’s protective ozone layer have also been triggering changes in Southern Hemisphere atmospheric circulation. Now, new research in Nature finds that those changes have paused and might even be reversing because of the Montreal Protocol, an international treaty that successfully phased out use of ozone-depleting chemicals.
International Ozone Treaty Stops Changes in Southern Hemisphere Winds
Escape to the Central Arctic
Your computer is now a portal to the North Pole.
Fresh Food and Faces in the Distant Arctic Ocean
After weeks of churning slowly through sea ice in the remote Arctic Ocean, a Russian icebreaker carrying scientists, crew and new equipment has reached the German RV Polarstern, which is frozen into drifting sea ice about 100 miles from the geographic North Pole. During the next few days, people will carefully ferry tons of cargo between the two ships and dozens of scientists and crew will switch cabins, some bound for home after months on dark ice, others thrilled to begin a two-month stint serving science on the international Arctic climate mission.