Plastic waste in oceans decomposes, releases hazardous chemicals

ScienceDaily (Aug. 20, 2009) — In the first study to look at what happens over the years to the billions of pounds of plastic waste floating in the world’s oceans, scientists are reporting that plastics — reputed to be virtually indestructible — decompose with surprising speed and release potentially toxic substances into the water. Reporting […]

Global ocean surface temperature breaks 1998 record

The planet’s ocean surface temperature was the warmest on record for July, breaking the previous high mark established in 1998 according to an analysis by NOAA’s National Climatic Data Center in Asheville, N.C. The combined average global land and ocean surface temperature for July 2009 ranked fifth-warmest since world-wide records began in 1880. The combined […]

Arctic warming already triggering methane release

The warming of an Arctic current over the last 30 years has triggered the release of methane, a potent greenhouse gas, from methane hydrate stored in the sediment beneath the seabed. Scientists at the National Oceanography Centre Southampton working in collaboration with researchers from the University of Birmingham, Royal Holloway London and IFM-Geomar in Germany […]

Highest-ever winter water temperatures recorded near Tasmania

Canberra, Australia (SPX) Aug 13, 2009 – Tasmania’s east coast is recording its highest-ever winter water temperatures of more than 13 degrees C – up to 1.5 degrees C above normal – due to a strengthening of an ocean current originating north of Australia. Satellites have given oceanographers an insight into a remarkable phenomenon – […]

Graph of the Day: Trend of Sea Level Change, 1993-2008

Warming water and melting land ice have raised global mean sea level 4.5 centimeters (1.7 inches) from 1993 to 2008. But the rise is by no means uniform. This image, created with sea surface height data from the Topex/Poseidon and Jason-1 satellites, shows exactly where sea level has changed during this time and how quickly […]

Climate change worsens U.S. beachwater pollution

WASHINGTON, DC, July 29, 2009 (ENS) – Polluted water at American beaches jeopardized the health of swimmers last year and climate change is making conditions worse, according to the 19th annual beachwater quality report released today by the Natural Resources Defense Council. Climate change is expected to further increase the presence of pathogens that cause […]

Graph of the Day: Sequential Collapse of Marine Mammals in the North Pacific Ocean and southern Bering Sea

By Gloria MaenderOctober 2003 The rapid removal of at least half a million great whales from the North Pacific Ocean by intensive industrial whaling more than 50 years ago may have unleashed a complex ecological chain reaction that has since rippled resoundingly from ocean to coastal ecosystems, according to a team of eight scientists, including […]

Clouds appear to be big, bad player in global warming

From Climate Progress:   The best evidence is that the climate is now being driven by amplifying feedbacks (see Study: Water-vapor feedback is “strong and positive,” so we face “warming of several degrees Celsius”), most notably: The defrosting of the permafrost The drying of the Northern peatlands (bogs, moors, and mires). The destruction of the […]

Climate change making aquatic organisms smaller

  ‘On left: microscopic photo of the spring diatom bloom with large organisms dominating. On right: warming of six degrees with smaller flagellates dominating.’ Image credit:IFM-GEOMAR, via PhysOrg.com I want to be careful not to exaggerate the significance of this work. That said, I find it disturbing to learn that a warming ocean selects for […]

Graph of the Day: Biomass Distributions for N. Atlantic Fish, 1900-2000

The Sea Around Us Project investigates the impact of fisheries on the world’s marine ecosystems. This is achieved by using a Geographic Information System (GIS) to map global fisheries catches from 1950 to the present, under explicit consideration of major critical habitats of fish, marine invertebrates, marine mammals and other components of marine biodiversity. North […]

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