Dynamic deoxygenation within intensified coastal upwelling circulations (September 2016)

September 2016: Professor Andrew Bakun (University of Miami, USA) speaks at Royal Society event Ocean ventilation and deoxygenation in a warming world. Abstract Major deoxygenation commonly takes place in ocean regions that feature particularly intense coastal upwelling circulations. Prominent examples discussed herein include the seasonal Somali Current upwelling, which during the southwest monsoon becomes the…

Biogeochemical regulation: Anoxia in the Past and Present (September 2016)

September 2016: Professor Andrew Watson FRS, (University of Exeter, UK) speaks at Royal Society event Ocean ventilation and deoxygenation in a warming world. Abstract The major biogeochemical cycles which keep the present-day Earth habitable are linked by a network of feedbacks which has led to a broadly stable chemical composition of the oceans and atmosphere…

Ralph Keeling: Oxygen trends in Atmosphere and Ocean. What do we know?

September 2016: Professor Ralph Keeling ( Scripps Institute for Oceanography, USA) speaks at The Royal Society event, Ocean ventilation and deoxygenation in a warming world. Abstract Human activities are causing systematic decreases in the O2 content of both the atmosphere and the oceans. The atmospheric loss is driven primarily by the burning of fossil-fuels while…

Potential abrupt cataclysmic change and the Atlantic

A slowdown or even collapse of the Gulf Stream System as a result of global warming has long been a concern of climate scientists and has fuelled the imagination of Hollywood. Recent studies provide evidence for a AMOC slowdown. Release via Earth101 (Follow and subscribe to their channel too) https://www.youtube.com/watch?v=EmiVhT5cHpw Related German article http://scilogs.spektrum.de/klimalounge/qa-zum-golfstromsystem-und-dem-cold-blob-im-atlantik/ Related…

Cleaner Air, The Ocean, and Global Warming

Reductions in sulfur dioxide (SO2) emissions in recent years, for cleaner air, mainly in South East Asia due to a severe manufacturing sector slowdown and pollution policy changes (1,2) may attribute to current warming, since the phenomena called global dimming is involved. The first policies to address air pollution in the 20th century, originated after…

Ocean Warming Is ‘Greatest Hidden Challenge of Our Generation’ #3DEdition

A new International Union for Conservation of Nature (IUCN) report, Explaining ocean warming: causes, scale, effects and consequences, sets out the most recent and comprehensive review to date on this topic and shows a complex story of change in the ocean. By the International Union for Conservation of Nature http://www.ecowatch.com/ocean-warming-climate-change-1998229846.html Report “Explaining ocean warming: causes,…

Sea level rise estimates doubled

Brady Dennis and Chris Mooney from The Washington post, recently┬áreported on updated┬ásea level rise projections. Sea levels could rise nearly twice as much as previously predicted by the end of this century┬áif┬ácarbon dioxide┬áemissions continue unabated, an outcome that could devastate coastal communities around the globe,┬áaccording to new research published Wednesday. The main reason? Antarctica. Scientists…

Ice sheets may be hiding vast reservoirs of methane

The study indicates that under the frigid weight of Barents Sea Ice sheet, which covered northern Eurasia some 22 000 years ago, significant amounts of methane may have been stored as hydrates in the ground. As the ice sheet retreated, the methane rich hydrates melted, releasing the climate gas into the ocean and atmosphere for…