How to adopt green technology to prevent climate change in our earth, some of there example in european northern cities. This all clean technology for the betterment of our childern and all other creatures of earth. No matter what we do, slow Climate change will occured. To better understand watch this video. Reference http://www.youtube.com/watch?v=VpCLfd-zw48
Friday, January 28, 2011
Saturday, January 15, 2011
Rising Arctic Storm Due To Climate Change
impacts of climate change on terrestrial and freshwater
species, communities and ecosystems (very high confidence).
Recent studies project that such changes will continue (high
confidence), with implications for biological resources and
globally important feedbacks to climate (mediumconfidence).
Strong evidence exists of changes in species’ ranges and
abundances and in the position of some tree lines in the Arctic
(high confidence). An increase in greenness and biological
productivity has occurred in parts of theArctic (high confidence).
Surface albedo is projected to decrease and the exchange of
greenhouse gases between polar landscapes and the atmosphere
will change (very high confidence). Although recent models
predict that a small net accumulation of carbon will occur inArctic
tundra during the present century (low confidence), higher
methane emissions responding to the thawing of permafrost and
an overall increase in wetlands will enhance radiative forcing
(medium confidence). [15.4.1, 15.4.2, 15.4.6]. For more reading Click here.
NASA Study Finds Rising Arctic Storm Activity Sways Sea Ice, Climate
A new NASA study shows that the rising frequency and intensity of arctic storms over the last half century, attributed to progressively warmer waters, directly provoked acceleration of the rate of arctic sea ice drift, long considered by scientists as a bellwether of climate change. For more reading Click here.
Wednesday, January 12, 2011
Arctic Ice In Death Spiral (News)
More than 2.5 million square kilometres of the Arctic Ocean have been opened up to the heat of the 24-hour summer sun. |
At present we have warming in the Arctic at at least twice the global rate.
This warming is being accelerated by the sea ice retreat in a process of
positive feedback. As the sea ice melts and gives way to water, the surface
albedo (reflectivity) changes, more heat energy is absorbed which enhances
the warming and melting. The whole region is flipping into a hotter state
- and we could ultimately have an ice-free Arctic - melting permafrost would
release vast quantities of methane - and it would be the end of the world as
we know it.
For more about it click here
Labels:
Arctic,
Global rate,
Global warming,
Ice,
melting,
positive feedback,
sea ice,
suface albedo
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