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D'coda Dcoda

BBC sought advice from global warming scientists on economy, drama, music... and even g... - 0 views

www.dailymail.co.uk/...y-drama-music--game-shows.html

bbc global warming scientists

shared by D'coda Dcoda on 29 Nov 11 - No Cached
  • Britain’s leading green activist research centre spent £15,000 on seminars for top BBC executives  in an apparent bid to block climate change sceptics from the airwaves, a vast new cache of leaked ‘Climategate’ emails has revealed.
  • more than 5,200 messages that appear to have been stolen from computers at the University of East Anglia – shed light for the first time on an incestuous web of interlocking relationships between BBC journalists and the university’s scientists, which goes back more than a decade.
  • used their contacts at the Corporation to stop sceptics being interviewed and were consulted about how the broadcaster should alter its programme output.
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Arctic Ocean freshwater bulge detected [22Jan12] - 0 views

www.bbc.co.uk/...science-environment-16657122

arctic ocean freshwater

shared by D'coda Dcoda on 23 Jan 12 - No Cached
  • UK scientists have detected a huge dome of freshwater that is developing in the western Arctic Ocean. The bulge is some 8,000 cubic km in size and has risen by about 15cm since 2002. The team thinks it may be the result of strong winds whipping up a great clockwise current in the northern polar region called the Beaufort Gyre. This would force the water together, raising sea surface height, the group tells the journal Nature Geoscience.
  • The data (1995-2010) indicates a significant swelling of water in the Beaufort Gyre, particularly since the early part of the 2000s. The rising trend has been running at 2cm per year.
  • A lot of research from buoys and other in-situ sampling had already indicated that water in this region of the Arctic had been freshening. This freshwater is coming in large part from the rivers running off the Eurasian (Russian) side of the Arctic basin. Winds and currents have transported this freshwater around the ocean until it has been pulled into the gyre. The volume currently held in the circulation probably represents about 10% of all the freshwater in the Arctic.
  • ...2 more annotations...
  • "When you have clockwise rotation - the freshwater is stored. If the wind goes the other way - and that has happened in the past - then the freshwater can be pushed to the margins of the Arctic Ocean
  • "If the spin-up starts to spin down, the freshwater could be released. It could go to the rest of the Arctic Ocean or even leave the Arctic Ocean." If the freshwater were to enter the North Atlantic in large volumes, the concern would be that it might disturb the currents that have such a great influence on European weather patterns. These currents draw warm waters up from the tropics, maintaining milder temperatures in winter than would ordinarily be expected at northern European latitudes.
D'coda Dcoda

Climate May Be Less Sensitive To CO2 Than Previously Thought [25Nov11] - 0 views

science.slashdot.org/...to-co2-than-previously-thought

CO2 climate change

shared by D'coda Dcoda on 25 Nov 11 - No Cached
  • "A new study suggests that the effects of rising levels of carbon dioxide on temperature may be less significant than previously thought. 'The new models predict that given a doubling in CO2 levels from pre-industrial levels, the Earth's surface temperatures will rise by 1.7 to 2.6 degrees C. That is a much tighter range than suggested by the Intergovernmental Panel on Climate Change's 2007 report, which suggested a rise of between 2 to 4.5 degrees C."
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