Scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining. Measurements show that the decline in chlorine, resulting from an international ban on chlorine-containing man-made chemicals called chlorofluorocarbons (CFCs), has resulted in about 20% less ozone depletion during the Antarctic winter than there was in 2005, the first year that measurements of chlorine and ozone during the Antarctic winter were made by NASA's Aura satellite.
Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880, according to an analysis by scientists at NASA’s Goddard Institute for Space Studies (GISS). Continuing the planet’s long-term warming trend, globally averaged temperatures in 2017 were 0.90 degrees Celsius (1.62 degrees Fahrenheit) warmer than the 1951 to 1980 mean. That is second only to global temperatures in 2016.
Even thermometers can't keep up with the plunging temperatures in Russia's remote Yakutia region, which hit minus 67 degrees Celsius (minus 88.6 degrees Fahrenheit) in some areas on Tuesday. In Yakutia, a region of 1 million people about 5,300 kilometers east of Moscow, students routinely go to school even in minus 40 degrees. But school was canceled on Tuesday throughout the region and police ordered parents to keep their children inside.
A vast fleet of fishing vessels assembling to catch Illex squid on the high seas, some 400 miles north of the Falkland Islands, is an issue of concern to the Falkland Islands Fisheries Department.
The Brazilian Navy spotted something unusual in the azure waters of the South Atlantic. In 2015, at a remote outpost and biological research station on the island of Trindade, 1,100 kilometers off central Brazil, sailors spotted a small gray seal swimming in the waves. Two days later, they found its body on the island’s Catelha beach. Scientists who went to take a closer look made an astonishing discovery—the corpse was a young Weddell seal.
Australia experienced its third-warmest year on record in 2017, according to the nation's Bureau of Meteorology. The national mean temperature of 22.75C was almost 1C higher than a 1961-1990 baseline, its annual report revealed. Only 2005 and 2013 were warmer, based on records kept for about a century.
The RRS Discovery arrived on Tuesday in Chile's extreme south port of Punta Arenas in advance of her next research expedition, to undertake seismic survey and piston coring operations in the eastern Falkland Plateau region of the Sub-Antarctic Southwest Atlantic Ocean.
Siemens Gamesa Renewable Energy SA is in final negotiations to supply about 700 megawatts of wind turbines for power plants in Brazil. The deal are to supply equipment for projects that Voltalia SA, EDP Renovaveis SA, Enel Green Power SpA, and Neoenergia SA are developing in northeast Brazil. The orders are all for wind farms that won government-organized power auctions in December.
In a surprise move, the Brazilian government has announced that the era of building big hydroelectric dams in the Amazon basin, long criticized by environmentalists and indigenous groups, is ending.
The aftermath of a frigid “bomb cyclone” and polar vortex left much of the northeastern US and Canada frigid on Friday night. Wind chills in one part of the state of New Hampshire were forecast to hit negative 50 degrees Celsius, according to forecasters. New York Times reporters who were sent to Mount Washington in that state said the wind “steals your breath and freezes your eyelashes.”