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Tuesday, May 21, 2013 | 12:28 p.m.

Latest Environment & Science Headlines

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An American flag blows in the wind at sunrise atop the rubble of a destroyed home a day after a tornado moved through Moore, Okla., Tuesday, May 21, 2013. The monstrous tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds up to 200 mph. (AP Photo/Brennan Linsley)

More tornadoes from global warming? Nobody knows

A deadly tornado hit suburban Oklahoma City on Monday. A quick look at some basic facts: Q. Is global warming to blame? A. You can't blame a single weather event on global warming. In any case, scientists just don't know whether there will be more or fewer twisters as global ...

Canadian Prime Minister Stephen Harper speaks to business leaders during a meeting in New York, Thursday May 16, 2013. Harper said Thursday that a controversial oil pipeline from his country to the U.S. Gulf Coast "absolutely needs to go ahead" and warned that the oil will be transported through America one way or another. (AP Photo/The Canadian Press, Adrian Wyld)

Canada PM on pipeline plan: Oil to come anyway

A controversial oil pipeline to the U.S. Gulf Coast "absolutely needs to go ahead," Canada's prime minister said Thursday, and he warned that the oil will be transported through America one way or another. Stephen Harper addressed the Keystone XL project, a flashpoint in the debate over climate change, during ...

Oregon Editorial Rdp

Editorials from Oregon newspapers The (Bend) Bulletin, May 12, on cuts in the U.S. government's 2014 wildfire budget The best time to fight a wildfire is before it starts. Reducing fuels reduces fires. There's less threat to the public, firefighters, trees, wildlife and property. So why is the U.S. government ...

Project aims to track big city carbon footprints

Every time Los Angeles exhales, odd-looking gadgets anchored in the mountains above the city trace the invisible puffs of carbon dioxide, methane and other greenhouse gases that waft skyward. Halfway around the globe, similar contraptions atop the Eiffel Tower and elsewhere around Paris keep a pulse on emissions from smokestacks ...

Natural gas export plans stir debate

A domestic natural gas boom already has lowered U.S. energy prices while stoking fears of environmental disaster. Now U.S. producers are poised to ship vast quantities of gas overseas as energy companies seek permits for proposed export projects that could set off a renewed frenzy of fracking. Expanded drilling is ...

Plans to export US natural gas stir debate

A domestic natural gas boom already has lowered U.S. energy prices while stoking fears of environmental disaster. Now U.S. producers are poised to ship vast quantities of gas overseas as energy companies seek permits for proposed export projects that could set off a renewed frenzy of fracking. Expanded drilling is ...

Experts: CO2 record illustrates 'scary' trend

The old saying that "what goes up must come down" doesn't apply to carbon dioxide pollution in the air, which just hit an unnerving milestone. The chief greenhouse gas was measured Thursday at 400 parts per million in Hawaii, a monitoring site that sets the world's benchmark. It's a symbolic ...

In this Sunday, Dec. 2, 2012 photo, a flock of Geese fly past the smokestacks at the Jeffrey Energy Center coal power plant as the suns sets near Emmett, Kan. Worldwide levels of the chief greenhouse gas that causes global warming have hit a milestone, reaching an amount never before encountered by humans, federal scientists said Friday, May 10, 2013. Carbon dioxide was measured at 400 parts per million at the oldest monitoring station in Hawaii which sets the global benchmark. The last time the worldwide carbon level was probably that high was about 2 million years ago, said Pieter Tans of the National Oceanic and Atmospheric Administration. (AP Photo/Charlie Riedel)

Greenhouse gas milestone; CO2 levels set record

Worldwide levels of the chief greenhouse gas that causes global warming have hit a milestone, reaching an amount never before encountered by humans, federal scientists said Friday. Carbon dioxide was measured at 400 parts per million at the oldest monitoring station which is in Hawaii sets the global benchmark. The ...

In this April 22, 2013 photo, fisherman Desmond Augustin stands on a breakwater of old tires and driftwood that local residents fashioned to try and protect their fishing village in Telegraph, Grenada. The people along this vulnerable stretch of eastern Grenada have been watching the sea eat away at their shoreline in recent decades, a result of destructive practices such as sand mining and a ferocious storm surge made worse by climate change, according to researchers with the U.S.-based Nature Conservancy, who have helped locals map the extent of coastal erosion. (AP Photo/David McFadden)

Encroaching sea already a threat in Caribbean

The old coastal road in this fishing village at the eastern edge of Grenada sits under a couple of feet of murky saltwater, which regularly surges past a hastily-erected breakwater of truck tires and bundles of driftwood intended to hold back the Atlantic Ocean. For Desmond Augustin and other fishermen ...

Study: Climate change could affect DC water supply

A new study finds climate change could cut stream flows in the Potomac River basin, a major source of drinking water in the Washington region. The study found by 2040 climate change could cut stream flows 35 percent. And a moderate drought combined with that worst-case scenario could mean mandatory ...

EPA methane report further divides fracking camps

The Environmental Protection Agency has dramatically lowered its estimate of how much of a potent heat-trapping gas leaks during natural gas production, in a shift with major implications for a debate that has divided environmentalists: Does the recent boom in fracking help or hurt the fight against climate change? Oil ...

US methane report further divides fracking camps

The U.S. Environmental Protection Agency has dramatically lowered its estimate of how much of a potent heat-trapping gas leaks during natural gas production, in a shift with major implications for a debate that has divided environmentalists: Does the recent boom in fracking help or hurt the fight against climate change? ...

State College mayor urges fossil fuel divestment

The mayor of the central Pennsylvania borough of State College has endorsed a campaign that urges municipalities to divest from fossil fuel companies, the environmental group 350.org said in a release Thursday. Borough Mayor Elizabeth Goreham joined nine other mayors in urging municipalities to divest from the top 200 fossil ...

UN official hopeful about 2015 climate talks

Governments are more serious and the impact of climate change is more dramatic, improving chances of a groundbreaking global warming pact in 2015 in contrast with the failure of such an effort in 2009, the U.N. climate chief said Tuesday. The climate change talks in Copenhagen were a resounding failure, ...

Santorum visits Steubenville; Talks global warming, family values

STEUBENVILLE, Ohio – About 500 people showed up Monday at a local diner in Steubenville, Ohio, to support former Pennsylvania Sen. Rick Santorum as he gave a policy speech. Santorum said President Barack Obama is pushing a radical environmental agenda that unwisely limits energy production and turns its back on ...

Cars & Climate Change

As the Obama Administration set out tough new rules for fuel mileage standards Thursday, getting less attention was the release of the first regulations ever placed on greenhouse gas tailpipe emissions, an effort by the feds to slow the effects of climate change. "Establishing a harmonized approach to regulating light-duty ...

Climate Change End Run

The Obama Administration picked a Snow Day for the federal government in Washington, D.C. to announce the creation of a new climate change office, as well as a new "climate.gov" web site, though none of it seems to be in the federal budget. The announcement came from the Commerce Department, which proposed ...

Senate Climate Change

Senate hearings get underway in earnest today on climate change legislation, as Democrats try to find some momentum for what's known as the Cap and Trade bill.  It won't be easy. Four Cabinet officials will be on hand today in the Senate Environment and Public Works Committee, as the chietains ...

Dems Roll Dice On Climate Change

The lobbying was furious on Thursday, as the White House and Democratic Leaders in the Congress tried to gain the votes needed to approve a controversial bill designed to limit the emission of pollutants that some argue cause global warming. President Obama was at work through the day, both in ...

Climate Change Bill, Part 1

As the House Energy and Commerce Committee begins a second day of work on an over 900 page measure on climate change, I wanted to give you a window into the bill and see what you can find in the details. This is the original version of HR. 2454, as ...

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