New records for sea ice loss, greenhouse gas in 2012 (Update 2)
The world lost record amounts of Arctic sea ice in 2012 and spewed out all-time high levels of greenhouse gases by burning fossil fuels, international climate scientists said Tuesday.
Find helps scientists map waves of migration across the continents
The discovery of an "early modern human" dating from 40,000 years ago in a cave outside Beijing, and a comparison of the individual's DNA with that of populations around the globe, are providing new pieces ...
Rapid upper ocean warming linked to declining aerosols
They partly attribute the observed warming, and preceding cooling trends to ocean circulation changes induced by global greenhouse gas emissions and aerosols predominantly generated in the Northern Hemisphere from human activity.
World energy agency sees record oil demand next year
Emerging economies will be the main force in the global oil market next year, driving demand to a record high level, International Energy Agency (IEA) data showed on Thursday.
Trees using water more efficiently as atmospheric carbon dioxide rises
A study by scientists with the U.S. Forest Service, Harvard University and partners suggests that trees are responding to higher atmospheric carbon dioxide levels by becoming more efficient at using water.
Earth's northern biomass mapped and measured
The biomass of the northern hemisphere's forests has been mapped with greater precision than ever before thanks to satellites, improving our understanding of the carbon cycle and our prediction of Earth's ...
Location of upwelling in Earth's mantle discovered to be stable
A study published in Nature today shares the discovery that large-scale upwelling within Earth's mantle mostly occurs in only two places: beneath Africa and the Central Pacific. More importantly, Clinton Conrad ...
Revealed: The mystery of the gigantic storm on Saturn
We now understand the nature of the giant storms on Saturn. Through the analysis of images sent from the Cassini space probe belonging to the North American and European space agencies (NASA and ESA respectively), ...
Siberian caves warn of permafrost meltdown
Climate records captured in Siberian caves suggest 1.5 degrees of warming is enough to trigger thawing of permafrost, according to a paper to be given at the Geological Society of London on 27 June.
Harbor porpoises can thank their worst enemy, the killer whale for their success
The harbor porpoise (Phocoena phocoena) is a whale species that is doing quite well in coastal and busy waters. They are found in large numbers throughout the Northern Hemisphere from Mauritania to Alaska ...
Noctilucent clouds get an early start
Every summer, something strange and wonderful happens high above the north pole. Ice crystals begin to cling to the smoky remains of meteors, forming electric-blue clouds with tendrils that ripple hypnotically ...
Potentially 'catastrophic' changes underway in Canada's northern Mackenzie River Basin: report
Canada's Mackenzie River basin—among the world's most important major ecosystems—is poorly studied, inadequately monitored, and at serious risk due to climate change and resource exploitation, a panel ...
Pollution in Northern Hemisphere helped cause 1980s African drought
Decades of drought in central Africa reached their worst point in the 1980s, causing Lake Chad, a shallow lake used to water crops in neighboring countries, to almost dry out completely.
Uneven warming shifts equatorial rain band, midlatitude westerlies
In a band near the equator, southward Northern Hemisphere winds and northward Southern Hemisphere winds come together to form the Intertropical Convergence Zone (ITCZ). In the ITCZ the equatorward winds rise and cool, creating ...