Climate change has accelerated in the past decade, the UN weather agency said Friday, releasing data showing that 2001 to 2010 was the warmest decade on record.
The 10-year period was also marked by extreme levels of rain or snowfall, leading to significant flooding on all continents, while droughts affected parts of East Africa and North America.
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Perth is sweltering through the eighth heatwave of the summer and autumn seasons, the first time such an event has happened since records started being kept in 1897.
The Bureau of Meteorology defines a heatwave as three consecutive days at or above 35 degrees Celsius.
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The Greenland icesheet is more sensitive to global warming than thought, for just a relatively small — but very long term — temperature rise would melt it completely, according to a study published on Sunday.
Previous research has suggested it would need warming of at least 3.1 degrees Celsius (5.6 degrees Fahrenheit) above pre-industrial levels, in a range of 1.9-5.1 C (3.4-9.1 F), to totally melt the icesheet.
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Two decades after the United Nations established the Framework Convention on Climate Change in order to “prevent dangerous anthropogenic interference with the climate system,” the Arctic shows the first signs of a dangerous climate change. A team of researchers led by CSIC assures so in an article recently published in Nature Climate Change.
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Last year broke records for extreme weather in the United States, with 14 events each causing at least a billion dollars in damage, US authorities said on Thursday.
Also, 2011 marked 35 years in a row that global temperatures have been warmer than average, according to data released by the National Oceanic and Atmospheric Administration.
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The massive drought that has dried out Texas over the past year has killed as many as half a billion trees, according to new estimates from the Texas Forest Service.
“In 2011, Texas experienced an exceptional drought, prolonged high winds, and record-setting temperatures,” Forest Service Sustainable Forestry chief Burl Carraway told Reuters on Tuesday. “Together, those conditions took a severe toll on trees across the state.”
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A town in Western Australia’s Pilbara region has been feeling the heat, sizzling through the second-hottest December day ever recorded in Australia.
The mercury tipped 49.4 degrees Celsius in Roebourne yesterday.
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Trees are dying in the Sahel, a region in Africa south of the Sahara Desert, and human-caused climate change is to blame, according to a new study led by a scientist at the University of California, Berkeley.
“Rainfall in the Sahel has dropped 20-30 percent in the 20th century, the world’s most severe long-term drought since measurements from rainfall gauges began in the mid-1800s,” said study lead author Patrick Gonzalez, who conducted the study while he was a visiting scholar at UC Berkeley’s Center for Forestry.
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At least five states in Mexico’s northwest say they are on the verge of disaster following the worst drought in living memory.
Peter Greste in Mexico: “Some areas haven’t seen a drop of rain since last August.”
On Thursday the Mexican Government formally declared five other states disaster zones and began sending emergency aid.
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Video Report:Two minute video that ‘shows how the Earth’s temperature has risen 1C since the 1950s’. Read More / Watch Video »
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..The Jorge Montt glacier in southern Chile is melting at a rate of a kilometer (0.6 miles) per year, making it one of the world’s most visible milestones of global warming, according to researchers.
Chile’s Center for Scientific Studies (CECs) said Wednesday that several glaciers in the country’s south have shrunk because of global warming but that the 454-square-kilometer Jorge Montt is one of those shrinking the fastest.
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As the Arctic warms, greenhouse gases will be released from thawing permafrost faster and at significantly higher levels than previous estimates, according to survey results from 41 international scientists published in the Nov. 30 issue of the journal Nature.
Permafrost thaw will release approximately the same amount of carbon as deforestation, say the authors, but the effect on climate will be 2.5 times bigger because emissions include methane, which has a greater effect on warming than carbon dioxide.
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Current pledges for curbing carbon emissions will doom the world to global warming of 3.5 C, massively overshooting the UN target of 2 C, researchers reported at the climate talks here on Tuesday.
Output of heat-trapping carbon gases is rising so fast that governments have only four years left to avert a massive extra bill for meeting the two degrees Celsius (3.6 degrees Fahrenheit) target, they said.
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Glaciers in the Himalayas have shrunk by as much as a fifth in just 30 years, scientists have claimed in the first authoritative confirmation of the effects of climate change on the region.
The findings, published in three reports by the Kathmandu-based International Centre for Integrated Mountain Development (ICIMOD), show Nepal’s glaciers have shrunk by 21 percent and Bhutan’s by 22 percent over 30 years.
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US federal officials have said the Arctic region has changed dramatically for the worse in the past five years.
It is melting at a near record pace and is darkening and absorbing too much of the sun’s heat.
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The threat to climate change posed by thawing permafrost, which could release stocks of stored carbon, is greater than estimated, a group of scientists said on Wednesday.
By 2100, the amount of carbon released by permafrost loss could be “1.7-5.2 times larger than those reported,” depending on how swiftly Earth’s surface warms, they said.
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Video Report: Dozens of shattered communities in Japan are facing the difficult decision on whether to rebuild or relocate one [...]
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Video Report:Thousands of residents remain isolated by floodwaters along the New South Wales north coast as the threat moves inland.About [...]
Video Report:Aerial views show the destruction left behind by typhoon Washi after it lashed the southern Philippines, killing over 250 [...]
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