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Earth
News
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Earth News |
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QUEBEC CITY – Most
provinces are stepping
up with strong targets
and policies to reduce
greenhouse gases in the
absence of federal
leadership on climate
change, says a new David
Suzuki Foundation.
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Extinction risk 'underestimated'
(Jul 3, 2008)
The
risk of extinction for many species may have been
seriously underestimated, according to new research
published in the journal Nature. Current methods
used to assess species on the brink overlook some
key factors, a team of scientists claims. These
include the ratio of males to females in a
population, which can have a profound influence on
survival.
Read more.
Source: BBC |
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Arctic sea ice melt 'even faster'
(Jun 19, 2008)
Arctic sea ice is melting even faster than last
year, despite a cold winter. Data from the US
National Snow and Ice Data Center (NSIDC) shows that
the year began with ice covering a larger area than
at the beginning of 2007. But now it is down to
levels seen last June, at the beginning of a summer
that broke records for sea ice loss.
Read more.
Source: BBC
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Global biodiversity slumps 27% in
35 years
(May 13, 2008)
The latest data on the global biodiversity of
vertebrates shows that it has fallen by almost
one-third in the last 35 years. But experts say it
may still underestimate the effect humans have had
on global species counts. The Living Planet Index (LPI)
follows trends in nearly 4,000 populations of 1,477
vertebrate species and is said to reflect the impact
humans have on the planet.
Read more.
Source:
New Scientist |
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Antarctic glaciers surge to ocean
(Feb 24, 2008)
UK scientists working in Antarctica have
found some of the clearest evidence yet of
instabilities in the ice of part of West
Antarctica. If the trend continues, they
say, it could lead to a significant rise in
global sea level. The new evidence comes
from a group of glaciers covering an area
the size of Texas, in a remote and seldom
visited part of West Antarctica.
Read more..
Source: BBC |
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Climate 'clearly out of balance'
(Jan 25, 2008)
The world's climate is "clearly out of balance and
is warming", the world's largest society of Earth
and space scientists has said in a statement. The
American Geophysical Union (AGU) warned that changes
to the Earth's climate system were "not natural".
Changes in temperature, sea level and rainfall were
best explained by the increased concentration of
greenhouse gases from human activities, it added.
Read more.
Source: BBC
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Destruction of rainforest accelerates
despite outcry
(Jan 18, 2008)
The destruction of the Amazon rainforest has
surged in the past four months, raising the
prospect of 2008 being a disastrous year for
the world's most important eco-system, a
senior Brazilian government scientist has
warned. Dr Carlos Nobre, a scientist with a
government agency that monitors the Amazon
said thousands of square miles of rainforest
had been destroyed since October, after four
years in which deforestation rates had begun
to slow.
Read more..
Source: The Independent |
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