Lush greenery rich in Douglas fir and hemlock trees covers the Triangle Lake valley of the Oregon Coast Range. Today, however, geologists are more focused on sediment samples dating back 50,000 years and which show the region, not covered by glaciers in the last ice age, was frost-covered and endured erosion rates must higher than those seen today.
Coccolithophores have been increasing in relative abundance in the North Atlantic over the last 45 years, as carbon input into ocean waters has increased. Their relative abundance has increased 10 times -- an order of magnitude -- during this sampling period. This finding was diametrically opposed to what scientists had expected since coccolithophores make their plates out of calcium carbonate, which is becoming more difficult as the ocean becomes more acidic and pH is reduced.
A microscopic marine alga is thriving in the North Atlantic to an extent that defies scientific predictions, suggesting swift environmental change as a result of increased carbon dioxide in the ocean.
Scientists have developed a new method to model heat wave magnitude that takes both the duration and the intensity of the heat wave into account. The new metric indicates that a little-studied heat wave in Finland in 1972 had the same extent and magnitude of the 2003 European heat wave that is considered the second strongest heat wave since 1950. The findings are published today, Nov. 27 2015, in the journal Environmental Research Letters.
Globally, phytoplankton absorb as much carbon dioxide as tropical rainforests and so understanding the way they respond to a warming climate is crucial.
In advance of next week's United Nations climate meeting in Paris, Allen Fawcett et al. highlight the Intended Nationally Determined Contributions, in which various countries have put forward their commitments toward emissions reductions.
Frank Paul, a glaciologist at the University of Zurich in Switzerland, has created animations from satellite images of the Karakoram mountain range in Asia to show how its glaciers flow and change. The images of four different regions compress 25 years of glacier changes into just one second, revealing the complex glacier behavior in the Karakoram. The animations are published today in The Cryosphere, an open access journal of the European Geosciences Union.
A study published in Science today shows that if the emission reductions pledges brought to Paris are implemented and followed by measures of equal or greater ambition, they have the potential to reduce the probability of the highest levels of warming, and increase the probability of limiting global warming to 2 degrees Celsius.
A comprehensive scientific report released today by The Royal Society of Canada has concluded that there are still critical research gaps hampering efforts to both assess the environmental impacts of crude oil spills and to effectively remediate them.
Stanford University scientists have discovered how to make the electrical wiring on top of solar cells nearly invisible to incoming light. The new design, which uses silicon nanopillars to hide the wires, could dramatically boost solar-cell efficiency.