Global Warming

The Exchange
9:00 am
Tue September 30, 2014

All Eyes On Climate Change: N.H. Reacts To The U.N. Summit

Credit Michael O'Brien / Flickr/CC

Last week, more than 100 world leaders attended the United Nations summit on climate change in New York City.

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Environment
5:26 pm
Wed September 3, 2014

Gulf Of Maine Is Warming Faster Than Most Of World's Oceans

Credit Kevin Bryant / Flickr CC

Researchers studying the Gulf of Maine say its waters are warming faster than 99 percent of the world’s oceans, and worry the rising temperatures will hit New England commercial fisheries hard.

The study is still in its preliminary phase, and is being conducted by scientists at the Gulf of Maine Research Institute. According to their data the waters off of New England’s coast are warming by about a half a degree Fahrenheit per year on average. That gives the region a dubious distinction.

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Word of Mouth
2:02 pm
Wed November 13, 2013

Is The Global Carbon Footprint Shrinking?

A view of Typhoon Haiyan from space.
Credit Fragile Oasis via Flickr Creative Commons

The opening of the U.N.'s climate change summit this past weekend in Poland was overshadowed by Typhoon Haiyan. A Filipino envoy broke down in tears when describing the devastation, and received a standing ovation when he announced that he would fast until a "meaningful outcome is in sight."

An increase in weather-related disasters, fluctuating temperatures and rising sea levels are among the discouraging issues being discussed at the 2-week summit in Warsaw. But, there is some encouraging news…a new report by a Dutch agency found that global greenhouse gas emissions showed signs of slowing in 2012. The slackened pace is not attributed to recession, and has, in fact, occurred as wealth continues to climb among the world’s top CO2 emitters. Fred Pearce is environmental consultant for New Scientist, and breaks down the optimistic report for us. 

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Word of Mouth
11:12 am
Mon August 5, 2013

Arctic Methane Belch Could Prove Costly

Credit NASA/Kathryn Hansen via NASA Goddard Space Flight Center's flickr

Methane is 25 times more potent a greenhouse gas than carbon – and scientists have discovered there is a potentially disastrous amount of methane trapped under relatively thin ice in the east Siberian arctic shelf. New research measures the global impact the gas could have on global warming… and it’s not very optimistic.  Fred Pearce is environmental consultant for New Scientist.

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EarthTalk
1:46 pm
Tue July 9, 2013

Mosquito-Borne Diseases On The Uptick--Thanks To Global Warming

Credit U.S. Department of Agriculture

EarthTalk®
E - The Environmental Magazine

Dear EarthTalk: Is there a link between the recent spread of mosquito-borne diseases around the world and environmental pollution?                                                          -- Meg Ross, Lantana, FL

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All Things Considered
6:30 pm
Mon April 15, 2013

The Demographics Of Disagreement On Climate Change

Hamilton collaborated with the state climatologist Mary Stampone to determine how the temperature on the day that surveys were done effected the accuracy of respondents on climate knowledge questions. Democrats and Republicans were unaffected, but independents' answers varied widely, becoming more accurate the more out of whack the weather was.
Credit Larry Hamilton and Mary Stampone / Weather, Climate and Society 2013

  Last week the UNH Survey Center released the latest findings of the Granite State Poll. The Survey Center has been following a number of issues recently, the most high profile of which is whether or not there’s public support in New Hampshire for a proposed casino.

The Survey Center has also been part of a project looking at public attitudes about climate change – namely, why there’s a consensus among scientists – but not the public - that global warming is happening and caused by human activity.

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EarthTalk
12:00 am
Sun April 7, 2013

Global Warming Solutions

Credit iStock Photo

EarthTalk®
E - The Environmental Magazine

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Environment
3:00 pm
Tue January 29, 2013

Decarbonizing The Grid: Where Are We?

Cellulose insulation is piped from a Bruss Construction trailer into the attic of an old, drafty home in Hopkinton, NH
Credit Sam Evans-Brown / NHPR

New Hampshire’s energy grid relies heavily on fossil fuels like oil and coal, and getting the grid off of those fuels will be a major hurdle in addressing the challenge of global warming.

But here in New Hampshire, it’s proving a steep challenge to get carbon out of the electric supply, without breaking the bank for customers or utilities. But that doesn’t mean that people aren’t trying. As part of a weeklong look at New Hampshire’s Energy Future, we ask what’s being done about CO2?

Efficiency First

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EarthTalk
12:20 pm
Wed November 28, 2012

Deforestation and Global Warming

Cattle in a clear cut portion of the Amazon Rainforest.
Credit iStockPhoto/Thinkstock

EarthTalk®
E - The Environmental Magazine

Dear EarthTalk: Is it true that cutting and burning trees adds more global warming pollution to the atmosphere than all the cars and trucks in the world combined?                   -- Mitchell Vale, Houston, TX

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EarthTalk
2:22 pm
Fri November 2, 2012

Arctic Summer Sea Ice At Lowest Levels

Satellite data reveal how the new record low compares to the average minimum extent over the past 30 years (in yellow).
Credit NASA/Goddard Scientific Visualization Studio

EarthTalk®
E - The Environmental Magazine

Dear EarthTalk: I heard that the Arctic summer sea ice is at its lowest level since we began recording it. What are the implications of all this melting?]

-- Jo Shoemaker, Bowie, MD

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EarthTalk
11:10 am
Mon August 13, 2012

Is It Too Late to Avoid the Worst Impacts of Climate Change?

The amount of carbon dioxide (CO2) in the atmosphere today is roughly 390 parts per million (ppm), well above the 275 ppm it was before we started pumping pollution skyward during the Industrial Revolution.
350.org

EarthTalk®
E - The Environmental Magazine


Dear EarthTalk: I read that CO2 in our atmosphere is now more than 300 parts per million. Doesn’t this mean that we’re too late to avoid the worst impacts of climate change?      -- Karl Bren, Richmond, VA

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Environment
3:35 am
Thu April 5, 2012

Shake It Off: Earth's Wobble May Have Ended Ice Age

A wobbling of the Earth on its axis about 20,000 years ago may have kicked off a beginning to the end of the last ice age. Glaciers in the Arctic and Greenland began to melt, which resulted in a warming of the Earth, a new study says. Above, Greenland's Russell Glacier, seen in 1990.
Veronique Durruty Gamma-Rapho/Getty Images

Originally published on Thu April 5, 2012 9:25 am

The last big ice age ended about 11,000 years ago, and not a moment too soon — it made a lot more of the world livable, at least for humans.

But exactly what caused the big thaw isn't clear, and new research suggests that a wobble in the Earth kicked off a complicated process that changed the whole planet.

Ice tells the history of the Earth's climate: Air bubbles in ice reveal what the atmosphere was like and what the temperature was. And scientists can read this ice, even if it's been buried for thousands of years.

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NPR News
5:25 pm
Wed April 4, 2012

Pollution Playing A Major Role In Sea Temperatures

This NASA map shows the size of aerosol particles in the atmosphere. Green areas indicate larger, more naturally occurring particles like dust. Red areas indicate smaller aerosol particles, which can come from fossil fuels and fires. Yellow areas indicate a mix of large and small particles.
NASA Earth Observations

Originally published on Wed April 4, 2012 6:20 pm

The Atlantic Ocean, especially the North Atlantic, is peculiar: Every few decades, the average temperature of surface water there changes dramatically.

Scientists want to know why that is, especially because these temperature shifts affect the weather. New research suggests that human activity is part of the cause.

Scientists originally thought that maybe some mysterious pattern in deep-ocean currents, such as an invisible hand stirring a giant bathtub, created this temperature see-saw.

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Science
5:01 pm
Wed February 22, 2012

Climate Scientist Admits To Lying, Leaking Documents

Originally published on Wed February 22, 2012 10:30 pm

Peter Gleick is not just any scientist. He got his doctorate at the University of California, Berkeley and won a MacArthur "genius" award. He is also an outspoken proponent of scientific evidence that humans are responsible for climate change.

And earlier this week, he confessed that he had lied to obtain internal documents from the Heartland Institute, a group that questions to what extent climate change is caused by humans.

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Fresh Greens
12:00 am
Fri September 4, 2009

Global Warming Rap

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