quarta-feira, 24 de dezembro de 2014

quarta-feira, 5 de junho de 2013

Where trash accumulates in the deep sea

A young rockfish hides out in a discarded shoe, 472 meters (1,548 feet) deep
 in San Gabriel Canyon, off Southern California. (Credit: ©2010 MBARI)


June 5, 2013 — Surprisingly large amounts of discarded trash end up in the ocean. Plastic bags, aluminum cans, and fishing debris not only clutter our beaches, but accumulate in open-ocean areas such as the "Great Pacific Garbage Patch." Now, a paper by researchers at the Monterey Bay Aquarium Research Institute (MBARI) shows that trash is also accumulating in the deep sea, particularly in Monterey Canyon.

terça-feira, 9 de abril de 2013


The Arctic Ocean is rapidly accumulating carbon
dioxide owing to perturbations in the global
carbon cycle and particularly to increases in
anthropogenic carbon concentrations. This is
resulting in a decline in seawater pH, so-called
ocean acidification.
Increasing ocean acidification and warming of
the ocean will cause changes in the ecological and
biogeochemical coupling in the Arctic Ocean,
influencing the Arctic marine ecosystem at all
scales. Ocean acidification is expected to affect
marine food chains and fish stocks and thus the
commercial, subsistence, and recreational fisheries
in the Arctic. There is a need for a better understanding
of the nature and scope of these changes
and of the resilience of the ecosystem to the
changing carbon chemistry of the Arctic Ocean.
In addition, given the importance of the Arctic
Ocean as a regulator of global climate, there is a
need to understand the implications of the changing
role of the Arctic on the global carbon cycle.

quarta-feira, 27 de fevereiro de 2013

SEAPLEX Garbage Plastic Patch in the Pacific

SEAPLEX
http://sio.ucsd.edu/Expeditions/Seaplex/

SEAPLEX

Scripps Environmental Accumulation of Plastic Expedition

Seeking the Science of the Pacific Ocean Garbage Patch

terça-feira, 25 de dezembro de 2012

Study shows rapid warming on the West Antarctic ice sheet

Study shows rapid warming on the West Antarctic ice sheet

Dec. 23, 2012 — In a discovery that raises further concerns about the future contribution of Antarctica to sea level rise, a new study finds that the western part of the ice sheet is experiencing nearly twice as much warming as previously thought.

quarta-feira, 28 de novembro de 2012

First evidence of ocean acidification affecting live marine creatures in the Southern Ocean

First evidence of ocean acidification affecting live marine creatures in the Southern Ocean
The pteropod (marine snail) Limacina helicina antarctica which is abundant member of the Southern Ocean zooplankton community. Specimens mainly inhabit the top 200 m of oceanic waters where they graze on phytoplankton and detritus. Their shells are made of aragonite, a form of calcium carbonate that can dissolve rapidly. (Credit: Image provided by Nina Bednarsek)

quinta-feira, 24 de maio de 2012

http://www.midwayfilm.com/

It is about what is hapening to life, in this small island, in the middle of the Pacific Ocean.
It has to do with ourselves in our daily lives ! we must act urgently !

The World Oceans is what keeps OUR PLANET ALIVE !!

Strong images, great photography and a seriuos situation that has to do with our Oceans, Ourselves and Actions to be Taken to diminish the impact urgently ! Think about it because it has to do with the future of your family and children, and Life itself !!

They need donations for the project ! Please, visit the website and watch the film.
http://www.midwayfilm.com/

segunda-feira, 21 de maio de 2012

Dry lands getting drier, wet getting wetter: Earth's water cycle intensifying with atmospheric warming

Dry lands getting drier, wet getting wetter: Earth's water cycle intensifying with atmospheric warming

Deploying an Argo float in the Tasman Sea. (Credit: Image courtesy of CSIRO Australia )

ScienceDaily (May 21, 2012) — A clear change in salinity has been detected in the world's oceans, signalling shifts and an acceleration in the global rainfall and evaporation cycle.

n a paper just published in the journal Science, Australian scientists from the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Lawrence Livermore National Laboratory, California, reported changing patterns of salinity in the global ocean during the past 50 years, marking a clear fingerprint of climate change.
Lead author, Dr Paul Durack, said that by looking at observed ocean salinity changes and the relationship between salinity, rainfall and evaporation in climate models, they determined the water cycle has strengthened by four per cent from 1950-2000. This is twice the response projected by current generation global climate models

terça-feira, 15 de maio de 2012

Potential instability in West Antarctic Ice Sheet from newly discovered basin size of New Jersey

Potential instability in West Antarctic Ice Sheet from newly discovered basin size of New Jersey

ScienceDaily (May 10, 2012) — Using ice-penetrating radar instruments flown on aircraft, a team of scientists from the U.S. and U.K. have uncovered a previously unknown sub-glacial basin nearly the size of New Jersey beneath the West Antarctic Ice Sheet (WAIS) near the Weddell Sea. The location, shape and texture of the mile-deep basin suggest that this region of the ice sheet is at a greater risk of collapse than previously thought.