Tiny bits have been found in every sample of Arctic sea ice collected. But the ice can only hold these indestructible pollutants for so long.
There are more herbivores and creatures that parasitize other animals, but those that consume carrion and decomposing plants seem to be on the way down, scientists say.
Two new British studies deliver ominous evidence of the long-term consequences of climate change due to the profligate use of fossil fuels.
That global temperature increment doesn’t sound like much, but it could make a world of difference to the polar ecosystem.
Sea ice has hit record lows for this time of year, data also show. "It's just crazy, crazy stuff," says a scientist who has been studying the polar region since 1982.
Scientists blame global warming for the dwindling ice cover on the Arctic Ocean that the bears need for hunting seals each spring.
His five-year plan would open up federal waters off the California coast, as well as new areas off the East Coast from Georgia to Maine. Drilling in the affected regions has been blocked for decades.
The National Oceanic and Atmospheric Administration reports that the current rates of Arctic warming and sea ice decline have not been seen in over one thousand years.
New research analyzes the decline of the region's ecology by weighing natural variability and human factors.
Western postwar scientific studies in the Arctic were primarily driven by military concerns about Soviet activities in the region.