AAAS CEO Rush Holt today expressed reservation regarding reports that President-elect Donald Trump plans to select Oklahoma Attorney General Scott Pruitt, who views human-caused climate change as unsettled, to run the Environmental Protection Agency.
Earth’s climate will warm in response to a doubling of atmospheric carbon dioxide compared to pre-industrial levels, but this increase may be slightly smaller than previous studies have estimated, researchers say.
This amount of warming, which refers specifically to global average surface air temperature, is called Earth’s climate sensitivity. Researchers need a better handle on this number in order to better assess the impacts of future climate change.
The frosty highlands of the Tibetan Plateau may have been an evolutionary cradle for woolly rhinos and other shaggy, cold-hardy creatures that roamed North America and Eurasia during the last Ice Age, according to a new study in Science.
The 2 September report describes fossils from an ancient species of woolly rhino that was roaming the Zanda Basin on the Tibetan Plateau 3.7 million years ago, sweeping snow out of its way with an elongated face and massive nasal horn.