ScienceDaily
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Signs of reversal of Arctic cooling: Rapid temperature rise in the coldest region of mainland Europe
Parts of the Arctic have cooled over the past century, but temperatures have been rising steeply since 1990, according to a summer temperature reconstruction for the past 400 years produced on the base of tree rings from regions beyond the Arctic Circle.
Polarstern expedition: Autonomous underwater vehicle dives under the Arctic ice
The Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association for the first time sent its Autonomous Underwater Vehicle (AUV) on an under-ice mission at about 79° North. The four-metre-long, torpedo shaped underwater vehicle was deployed from the research icebreaker Polarstern under heavy pack ice. The vehicle was subsequently recovered by helicopter.
Best hope for saving Arctic sea ice is cutting soot emissions, say researchers
Soot from the burning of fossil fuels and solid biofuels contributes far more to global warming than has been thought, according to a new study. But, unlike carbon dioxide, soot lingers only a few weeks in the atmosphere, so cutting emissions could have a significant and rapid impact on the climate. Controlling it may be the only option for saving the Arctic sea ice before it all melts.
Marine biodiversity strongly linked to ocean temperature
Scientists have mapped and analyzed global biodiversity patterns for over 11,000 marine species ranging from tiny zooplankton to sharks and whales.
Marine phytoplankton declining: Striking global changes at the base of the marine food web linked to rising ocean temperatures
A new article reveals for the first time that microscopic marine algae known as phytoplankton have been declining globally over the 20th century. Phytoplankton forms the basis of the marine food chain and sustains diverse assemblages of species ranging from tiny zooplankton to large marine mammals, seabirds, and fish.
A future with or without trees: Greenhouse gas emissions from Brazilian Amazon state
Researchers have estimated future emissions of carbon dioxide, nitrous oxide, and methane in the Brazilian Amazon state of Mato Grosso. The estimates were made by combining 105 years of historical data on land-use changes with possible scenarios for future deforestation and land use in the region.
Arctic voyage illuminating ocean optics
During NASA's ICESCAPE voyage to the Arctic, scientists have been looking at the phytoplankton in the Arctic's Chukchi Sea -- how many, how big and at what depths they are found. But there are other ways of looking at these small life forms.
Unaccounted feedbacks from climate-induced ecosystem changes may increase future climate warming
In addition to the carbon cycle-climate interactions that have been a major focus of modeling work in recent years, other biogeochemistry feedbacks could be at least equally important for future climate change. Experts argue that it is important to include these feedbacks in the next generation of Earth system models.
Converging weather patterns caused last winter's huge snows in U.S.
The memory of last winter's blizzards may be fading in this summer's searing heat, but scientists studying them have detected a perfect storm of converging weather patterns that had little relation to climate change.
Scientists test Australia's Moreton Bay as coral 'lifeboat'
An international team of scientists has been exploring Australia's Moreton Bay, close to Brisbane, as a possible 'lifeboat' to save corals from the Great Barrier Reef at risk of extermination under climate change.