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Coastal waters are unexpected hotspots for nitrogen fixation

Thu, 21 Feb 2019 11:05:03 EST ~ Nitrogen fixation is surprisingly high in the ocean's coastal waters and may play a larger role than expected in carbon dioxide uptake, a new study shows. The findings -- based on thousands of samples collected in the western North Atlantic -- upend prevailing theories about where and when nitrogen fixation occurs, and underscore the need for scientists to revisit the global distribution of marine nitrogen fixation and reevaluate its role in the coastal carbon cycle. Find out more...

Researchers discover a flipping crab feeding on methane seeps

Wed, 20 Feb 2019 13:35:39 EST ~ Researchers have documented a group of tanner crabs vigorously feeding at a methane seep on the seafloor off British Columbia -- one of the first times a commercially harvested species has been seen using this energy source. Find out more...

Fishing and pollution regulations don't help corals cope with climate change

Tue, 19 Feb 2019 11:18:25 EST ~ A new study reports that protecting coral reefs from fishing and pollution does not help coral populations cope with climate change. The study also concludes that ocean warming is the primary cause of the global decline of reef-building corals and that the only effective solution is to immediately and drastically reduce greenhouse gas emissions. Find out more...

Ocean acidification harms cod larvae more than previously thought

Tue, 19 Feb 2019 11:17:23 EST ~ The Atlantic cod is one of the most important commercial fish species in the world. Recent studies have shown that ocean acidification threatens the early life stages of this species. So far it was hoped that at least the larvae that survive might be more robust and therefore may aid in the adaptation of this population. A new article suggests otherwise. Find out more...

What rising seas mean for local economies

Fri, 15 Feb 2019 14:13:23 EST ~ High-tide flooding resulting from climate change is already disrupting the economy of Annapolis, Md. As sea levels rise, the impacts are expected to get worse for coastal communities. Find out more...

Tide gauges capture tremor episodes in cascadian subduction zone

Fri, 15 Feb 2019 09:29:22 EST ~ Hourly water level records collected from tide gauges can be used to measure land uplift caused by episodic tremor and slip of slow earthquakes in the Cascadia Subduction Zone, according to a new report. Find out more...

Massive Bolivian earthquake reveals mountains 660 kilometers below our feet

Thu, 14 Feb 2019 15:31:25 EST ~ Geophysicists used data from an enormous earthquake in Bolivia to find mountains at the base of the mantle's transition zone, located 660 kilometers below our feet. Their statistical model didn't allow for precise height measurements, but these mountains may be bigger than anything on the surface of the Earth. The researchers also examined the top of the transition zone (410 km down) and did not find similar roughness. Find out more...

Artificial intelligence to boost Earth system science

Thu, 14 Feb 2019 11:55:51 EST ~ A new study shows that artificial intelligence can substantially improve our understanding of the climate and the Earth system. Find out more...

The smallest skeletons in the marine world observed in 3D by synchrotron techniques

Thu, 14 Feb 2019 11:55:38 EST ~ Coccolithophores are microscopic marine algae that use carbon dioxide to grow and release carbon dioxide when they create their miniature calcite shells. Scientists have revealed the nano-level 3D structure of their calcite shells, providing new perspectives for assessment of the role of these tiny microorganisms in the global carbon cycle. Find out more...

Undersea gases could superheat the planet

Wed, 13 Feb 2019 09:08:12 EST ~ Geologic carbon and hydrate reservoirs in the ocean pose a climate threat beyond humanmade greenhouse gases. Find out more...