Climate change models predict that sea temperatures will rise significantly, including in the tropics. In these areas, rainfall is also predicted to increase, reducing the salt concentration of the surface layer of the sea. Together, these changes would dramatically affect the microscopic communities of bacteria and plankton that inhabit the oceans, impacting species higher up the food chain.
Pink salmon that begin life in freshwater with high concentrations of carbon dioxide, which causes acidification, are smaller and may be less likely to survive, according to a new study from UBC.
Researchers from Royal Holloway, Birkbeck and Kings College, University of London used satellite images to map abandoned shore lines around Palaeolake Mega-Chad, and analysed sediments to calculate the age of these shore lines, producing a lake level history spanning the last 15,000 years.
Over a course of 12 days Dr. Giuliana Panieri and her colleagues from Centre for Arctic Gas Hydrate, Environment and Climate (CAGE) collected images from seven areas of known methane release in the Arctic Ocean. One of them was Vestnesa Ridge, with over 1000 active seep sites at the depth of over 1000 m.
The threat to human health from climate change is so great that it could undermine the last fifty years of gains in development and global health, according to a major new Commission, published in The Lancet.
Originally it became famous as an anesthetic gas used by dentists. However, laughing gas, or chemically correct nitrous oxide, is also found in large quantities in nature and has serious effects on climate: In the lower atmosphere it is a strong greenhouse gas, and in higher layers of the atmosphere it contributes indirectly to the destruction of ozone.
Global warming leads to the ice sheets on land melting and flowing into the sea, which consequently rises. New calculations by researchers from the Niels Bohr Institute show that the sea level in Northern Europe may rise more than previously thought. There is a significant risk that the seas around Scandinavia, England, the Netherlands and northern Germany will rise by up to about 1½ meters in this century. The results are published in a special issue of the scientific journal Climate Research.
In a study that contradicts the received wisdom on health impacts of climate change, scientists say that we shouldn't expect substantial reduction in winter deaths as a result of global warming. This new research is published today (Friday 19 June) in IOP Publishing's Environmental Research Letters journal.
Over billions of years, the total carbon content of the outer part of the Earth — in its upper mantle, crust, oceans, and atmospheres — has gradually increased, scientists reported this month in the journal Proceedings of the National Academy of Sciences.
Geologists and archaeologists from the Max Planck Institute for Evolutionary Anthropology (Germany), La Trobe University (Australia) and the University of Wollongong (Australia) identify previously unrecognised evidence for a "mega-lake" in the Australian desert 24,000 years ago, at the site of Lake Mungo in south-eastern Australia.
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