Bacteria are likely triggering greater melting on the Greenland ice sheet, possibly increasing the island’s contribution to sea-level rise, according to scientists. That’s because the microbes cause sunlight-absorbing sediment to clump together and accumulate in the meltwater streams, according to new study. The findings can be incorporated in climate models, leading to more accurate predictions of melting, scientists say.
A little over two decades ago, Dr. Irving Janis, professor of psychology at Yale University, published Groupthink in which he explained how a group of like-minded people could share a common belief or goal whilst completely ignoring any evidence that…
Scientists have thought that global warming will increase the availability of surface water—freshwater resources generated by precipitation minus evapotranspiration—in wet regions, and decrease water availability in dry regions [drylands]. This expectation is based primarily on atmospheric thermodynamic processes. As air…
A new study shows the importance of long-term soil moisture changes and associated soil moisture-atmosphere feedbacks in future predictions of water availability in drylands. The researchers identified a long-term soil moisture regulation of atmospheric circulation and moisture transport that largely ameliorates the potential decline of future water availability in drylands, beyond that expected in the absence of soil moisture feedbacks.
IMAGE: A dryland ecosystem in Northern California shows decreasing soil moisture but little changes in surface water availability. view more Credit: Columbia Engineering New Columbia Engineering study–first to investigate the long-term effect of soil moisture-atmosphere feedbacks in drylands–finds that soil moisture…
Researchers have devised a brain machine interface (BMI) that allows mice to learn to guide a cursor using only their brain activity. By monitoring this mouse-controlled mouse moving to a target location to receive a reward, the researchers were able to study how the brain represents intentional control.
After the Last Glacial Maximum some 14,000 years ago, rising temperature melted glaciers and ice caps worldwide. Over thousands of years, sea levels rose by more than 400 feet (130 meters).
(IOP Publishing) After the Last Glacial Maximum some 14,000 years ago, rising temperature melted glaciers and ice caps worldwide. Over thousands of years, sea levels rose by more than 400 feet (130 meters).
(Deutsche Forschungsgemeinschaft) Germany’s most important research funding prize for outstanding work in all fields of research / Virtual award ceremony on March 15, 2021.
Land ecosystems currently play a key role in mitigating climate change. The more carbon dioxide (CO2) plants and trees absorb during photosynthesis, the process they use to make food, the less CO2 remains trapped in the atmosphere where it can cause temperatures to rise. But scientists have identified an unsettling trend – as levels of CO2 in the atmosphere increase, 86 percent of land ecosystems globally are becoming progressively less efficient at absorbing it.