Oceans-global

January–August 2015 Blended Land and Sea Surface Temperature Percentiles. (NOAA)

CLICK HERE - PAPER - Exceptional twentieth-century slowdown in Atlantic Ocean overturning circulation

washingtonpost.com - by Chris Mooney - September 24, 2015

. . . we learned from the National Oceanic and Atmospheric Administration that the first eight months of 2015 were the hottest such stretch yet recorded for the globe’s surface land and oceans, based on temperature records going back to 1880. . . .

In the North Atlantic Ocean south of Greenland and Iceland, the ocean surface has seen very cold temperatures for the past eight months. . . .

. . . And while there may not yet be any scientific consensus on the matter, at least some scientists suspect that the cooling seen in these maps is no fluke but, rather, part of a process that has been long feared by climate researchers — the slowing of Atlantic Ocean circulation.

Image:  A lobsterman threw back a lobster near Mount Desert, Me. in 2012. The catch in the area has reached record highs. Credit Robert F Bukaty/Associated Press

nytimes.com - September 3rd, 2015 - Carl Zimmer

Up in Maine, lobsters are thriving. The Atlantic States Marine Fisheries Commission reported last month that stocks there have reached a record high.

Down the coast, however, the story is different.

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CLICK HERE - RESEARCH - Planetary boundaries: Guiding human development on a changing planet

As Science publishes the updated research, four of nine planetary boundaries have been crossed: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen). Image source: F. Pharand-Deschênes /Globaïa

stockholmresilience.org

Planetary Boundaries 2.0 – new and improved

As Science publishes the updated research, four of nine planetary boundaries have been crossed

Four of nine planetary boundaries have now been crossed as a result of human activity, says an international team of 18 researchers in the journal Science (16 January 2015). The four are: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen).

Image: Petersburg Harbor.

research.noaa.gov - July 29th, 2014

Ocean acidification is driving changes in waters vital to Alaska’s valuable commercial fisheries and subsistence way of life, according to new NOAA-led research that will be published online in Progress in Oceanography.

Many of Alaska’s nutritionally and economically valuable marine fisheries are located in waters that are already experiencing ocean acidification, and will see more in the near future, the study shows. Communities in southeast and southwest Alaska face the highest risk from ocean acidification because they rely heavily on fisheries that are expected to be most affected by ocean acidification, and have underlying factors that make those communities more vulnerable, such as lower incomes and fewer employment opportunities.