Science Daily

Without dramatic reductions in greenhouse-gas emissions, most of the planet's land-based ecosystems -- from its forests and grasslands to the deserts and tundra -- are at high risk of 'major transformation' due to climate change.

Arctic sea ice isn't just threatened by the melting of ice around its edges, a new study has found: Warmer water that originated hundreds of miles away has penetrated deep into the interior of the Arctic.

Climate change may have played a more important role in the extinction of Neanderthals than previously believed, according to a new study.

Researchers have traced the recolonization by martens of Isle Royale in Lake Superior to martens likely arriving in the 1990s, solving a mystery and showing the island's dynamism.

New research confirms the shape of tooth wear best indicates the kind of food modern koalas and kangaroos ate, not whether it was covered in dust and dirt.

With a new research plane and a new base to improve its chances of outsmarting Atlantic hurricanes, NASA's Oceans Melting Greenland campaign takes to the sky this week for its third year of gathering data on how the ocean around Greenland is melting its glaciers.

Trees growing in temperate forests in the eastern US show strong adaptation or acclimation to local climate. So reports a new study that analyzed more than 23,000 tree cores to investigate how adult trees respond to changes in climatic conditions.

New marine geophysical data recorded during two excursions on a French icebreaker enabled researchers to date the ocean floor and calculate the relative motion between the Antarctic Plates and the Australian Plate. This new data revealed that Antarctica fused into one plate around 11 million years ago, roughly 15 million years later than previously assumed.

Deforestation is suspected to have contributed to the mysterious collapse of Mayan civilization more than 1,000 years ago. A new study shows that the forest-clearing also decimated carbon reservoirs in the tropical soils of the Yucatan peninsula region long after ancient cities were abandoned and the forests grew back.

Flowering plants are well known for their special relationship to the insects and other animals that serve as their pollinators. But, before the rise of angiosperms, another group of unusual evergreen gymnosperms, known as cycads, may have been the first insect-pollinated plants. Now, researchers have uncovered the earliest definitive fossil evidence of that intimate relationship between cycads and insects.

Methane released by thawing permafrost from some Arctic lakes could significantly accelerate climate change, according to a new study. Unlike shallow, gradual thawing of terrestrial permafrost, the abrupt thaw beneath thermokarst lakes is irreversible this century. Even climate models that project only moderate warming this century will have to factor in their emissions, according to the researchers.

A new study uses data gathered by floating drones in the Southern Ocean over past winters to learn how much carbon dioxide is transferred by the surrounding seas. Results show that in winter the open water nearest the sea ice surrounding Antarctica releases significantly more carbon dioxide than previously believed.

The unusual timing of highly-productive summer plankton blooms off Greenland indicates a connection between increasing amounts of meltwater and nutrients in these coastal waters. Researchers now show that this connection exists, but is much more complex than widely supposed. Whether increasing meltwater has a positive or negative effect on summertime phytoplankton depends on the depth at which a glacier sits in the ocean.

Research has uncovered evidence that early farmers were adapting to climate change 8,200 years ago.

Coastal floods could impact up to 3.65 million people every year in Europe by 2100, according to a new study.

Melting of ice shelves in West Antarctica speeds up and slows down in response to changes in deep ocean temperature, and is far more variable than previously thought, according to new research.

How carbon made it out of the ocean and into the atmosphere has remained one of the most important mysteries of science. A new study, provides some of the most compelling evidence for how it happened -- a 'flushing' of the deep Pacific Ocean caused by the acceleration of water circulation patterns that begin around Antarctica.

New research led by glaciologists and isotope geochemists has found that melting ice sheets provide the surrounding oceans with the essential nutrient silica.

Historic levels of particles in the atmosphere released from pre-industrial era fires, and their cooling effect on the planet, may have been significantly underestimated according to a new study.

New DNA analysis reveals that, before their mysterious disappearance, the Norse colonies of Greenland had a 'near monopoly' on Europe's walrus ivory supply. An overreliance on this trade may have contributed to Norse Greenland's collapse when the medieval market declined.