The environmental impact of hydropower generation in the Amazon may be greater than predicted, according to new University of Stirling research.
Warmer ocean surface triggered the ice retreat during The Younger Dryas.
The JRC's annual forest fires report confirms a trend towards longer and more intense fire seasons in Europe and neighbouring regions, with wildfires now occurring throughout the year. The report coincides with an international study which finds that global wildfire trends could have significant health implications due to rising harmful emissions.
A new species of striped Philippine butterflyfish -- the charismatic Roa rumsfeldi -- made a fantastic, 7,000-mile journey before surprising scientists with its unknown status. Live specimens collected from a depth of 360 feet escaped special notice until a single black fin spine tipped off aquarium biologists back in San Francisco. Deep-diving researchers from the California Academy of Sciences' Hope for Reefs team -- with genetic sequencing help from a parent-son team -- share their discovery of a fifth species of Roa this week.
Scientists from Rice University and Texas A&M University-Corpus Christi's Harte Research Institute have discovered that Earth's sea level did not rise steadily when the planet's glaciers last melted during a period of global warming; rather, sea level rose sharply in punctuated bursts.
Blood samples taken by first responders showed that individuals exposed to small amounts of oil from the spill suffered from hemolytic anemia--a condition that occurs when toxins enter the blood stream and damage red blood cells that carry oxygen to tissues.
For some crystalline catalysts, what you see on the surface is not always what you get in the bulk, according to two studies led by the Department of Energy's Oak Ridge National Laboratory. The investigators discovered that treating a complex oxide crystal with either heat or chemicals caused different atoms to segregate on the surface, i.e., surface reconstruction. Those differences created catalysts with dissimilar behaviors, which encouraged different reaction pathways and ultimately yielded distinct products.
New research suggests that rare species of trees in rainforests may help safeguard biodiversity levels as the environment undergoes change.
Interactions between species play a key role in shaping biodiversity. A team of researchers including members of UZH has now shown that the coevolution of species that are embedded in complex networks of interactions is not only influenced directly by their partners but also indirectly by other species. This slows down the ability of complex communities to adapt to environmental change. Rapid climate changes are therefore likely to increase species' risk of becoming extinct.
For her Ph.D., Viglietti studied the fossil-rich sediments present in the Karoo, deposited during the tectonic events that created the Gondwanides, and found that the vertebrate animals in the area started to either go extinct or become less common much earlier than what was previously thought.