Freshwater resources

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In Texas Field Hearing, House Subcommittee To Attack EPA as State Faces Another Year of Devastating Drought

The House Energy and Power Subcommittee will be in Texas on Thursday (24 March 2011) holding a hearing attacking EPA's Clean Air Act enforcement, including its steps to regulate greenhouse gas emissions.  The hearing will take place against a backdrop of long-term -- and devastating -- drought in the state.  According to the Texas State Climatologist, “it is likely that drought frequency and severity will increase in Texas."  The culprit: rising greenhouse gas concentrations. 

Drought in East Africa likely to Persist as Global Temperatures Continue to Rise

A new study finds that decreased rainfall in eastern Africa is linked to climate change. Increased frequency of drought will risk food shortages for the approximately 17.5 million people living in the Greater Horn of Africa—Kenya, Ethiopia and Somalia. 

Scientists Predict Huge Pulse of Carbon into Atmosphere from 2010 Amazon Drought

Scientists report in the latest (4 February 2011) edition of Science, that the historic 2010 drought in the Amazon ultimately may result in the release of about 2.2 billion metric tonnes of carbon into the atmosphere.  That is equivalent to about 25% of global annual carbon emissions from fossil fuel use.  "If drought events continue," they conclude, "the era of intact Amazon forests buffering the increase in atmospheric carbon dioxide may have passed. "

Another Extreme Drought Hits the Amazon and Raises Climate Change Concerns

The Amazon region is experiencing the third extreme drought in a dozen years -- and it may turn out to be the worst on record. The droughts coupled with recent research findings, suggest that rising atmospheric concentrations of greenhouse gases will rapidly increase the frequency and severity of droughts in the region. The implications for people,  biodiversity and climate are ominous.

Sea Surface Temperatures in Tropical North Atlantic Rise to Record Levels in 2010, With Impacts from the Amazon to Canada

Sea surface temperatures (SSTs) in the Tropical North Atlantic are rising over the long term, driven in part by rising concentrations of greenhouse gases. High and in some areas record SSTs in the region throughout 2010 are largely responsible for one of the worst coral bleaching episodes on record in the Caribbean, are a principal contributor to one of the most active hurricane seasons on record, and are likely a key factor behind the second extreme drought in the Amazon in 5 years.

India, Pakistan, Bangladesh & Nepal among most at risk countries from climate change

According to a new Climate Change Vulnerability Index, Central America and East Africa along with South & Southeast Asia are among the most vulnerable regions to climate change.

Scientists Report that as Arctic Sea Ice Declines, Weather Impacts Spread into Northern Mid-Latitudes

In the annual "Arctic Report Card" issued by the National Oceanic and Atmospheric Administration (NOAA) today (21 October 2010), researchers report that the decline in Arctic Sea Ice appears to be favoring atmospheric conditions that paradoxically tend to bring colder weather to some areas well outside the Arctic.  The report links this emerging "Warm Arctic-Cold Continents" pattern to the cold air outbreaks and heavy snows experienced in parts of the U.S. and elsewhere in the Northern Hemisphere in December 2009 and February 2010.

Video: Montana's Melting Glaciers

CNN talks to Daniel Fagre, a U.S. Geological Survey (USGS) ecologist, and his colleagues about the disappearing glaciers of Glacier National Park. "I think on a global scale when you look at all the ice disappearing all around the world, there is no other explanation for that then climate change that is driven by people," Fagre says. 

Tibetan Plateau Feels the Impacts of Climate Change

Within the past 15 years, the Tibetan plateau has seen shifts in the timing of precipitation and the onset of spring, as well as the volume of frozen rain and snow that builds up over each winter.  The impacts are rippling across the region's communities and ecosystems.  Adaptation choices for the plateau are both difficult and limited in the face of such extremely rapid environmental change.

Climate change most visible through freshwater lens

The impacts of climate change are most visible in the dramatic changes occurring to the planet’s freshwater resources, says a new report written by WWF for the World Bank.

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