Here's a disturbing sign of how truly puzzling the up-and-down weather has been in Wisconsin this year: On Tuesday, when Madison residents enjoyed temperatures that hit 78 degrees, a number of calls filtered into the 911 system with reports of dead people in the grass. Also known as, you know, sunbathers.
For the first time, measurements of atmospheric carbon dioxide taken at Mauna Loa Observatory in Hawaii exceeded 400 parts-per-million on an hourly basis. It's a symbolic benchmark, but an important one, suggesting that efforts to curb greenhouse gas emissions have not yet shown any significant effect.
A new study on global warming has concluded that rise in global temperatures over the last century is even more shocking that you think, because the Earth should actually have been getting colder during that time.
Al Gore is a complicated, accomplished man. Sometimes, he's misunderstood, while other times he's misunderestimated. But Al Gore is not disingenious. At least, according to Al Gore he's not.
President Obama will be confronted with the first big policy decision of his second term where environmentalists and business interests are at odds: the Keystone XL oil pipeline. Despite promising to act on climate change in his inaugural address, all signs point to the controversial project going forward.
Well if you didn't believe in climate change before, meteorologists are now saying 2012 saw the highest temperatures ever recorded in the U.S. mainland, displacing a record set 14 years ago.
Discovered: Global warming could cause more lava flow; humans started popping pills ages ago; babies begin acquiring language in womb; Mars astronauts would be very sleepy.
Discovered: Scientists hazard their latest guesses about what we'll experience in the new year, showing us previews of rising sea levels, soaring temperatures, and a close encounter with a supercomet.
After almost four years of guiding controversial decisions on fracking, the Keystone XL pipeline, and coal, EPA Administrator Lisa Jackson is stepping down. Now, the hunt is on for a new director who won't be able to please anyone.
The organization's major global warming conference brought almost 200 countries together in Doha for the last two weeks, and, well, there was a lot of bickering.
Discovered: Climate change threatens the fanciest of ingredients; permafrost is melting; WiFi networks could stifle bovine belching; scientists find relatives of Lonesome George the tortoise.
Who would've thought that a Big Four accounting firm, the CIA, and now The World Bank would be some of the loudest voices calling for action on global warming?
Discovered: First sighting of spade-toothed whale; huge temperature spike predicted in this century; natural insect repellant; how an ancient volcano eruption precipitated acid rain.
Los Angeles Times on other countries fracking, Frontline on climate skeptics, The Guardian on the oil spill's damage to whales. McClatchy Newspapers on climate scientist suing conservatives, and Grist on a California state senate race.
Discovered: New accelerators lessen environmental impact of physics research; Cato Institute tries to quash climate findings; Lorca earthquake linked to well digging; rice crops speed warming.
Los Angeles Times on security and melting ice caps, New York Times on a dumping businessman, The Guardian on Saudi Arabia and renewable energy, Kansas City Star on polar bears, and Wired on organic-industrial combo farming
Discovered: Antarctic ice methane could hasten global warming; tuning an instrument also tunes the brain; NASA survey finds millions of potential black holes; low-cal diets don't improve lifespan.
Discovered: Chimps pick their fights; marijuana damages young minds; learn while sleeping; arctic sea ice takes a dive.
The ice over the Arctic Ocean is shrinking at record rates this year, a stark signal of global warming, scientists say. How bad is it? Watch this striking animated GIF of the past few decades' of ice shrinkage from climate change blog Open Mind.
Stats in from a new paper show that between 2006 and 2011 between 4 percent and 13 percent of the earth's surface has been covered by extreme heat.
Discovered: Elephants communicate through "infrasound"; allergies may help prevent brain cancer; playfulness is attractive; 97% of Greenland's surface ice is melting.
Discovered: Today's pop music is loud and monotonous; termites send their elderly on suicide missions; storms can damage the ozone layer; Monday isn't actually a mood killer.
Discovered: Weird weather informs beliefs about global warming; sight brought to blind mice; encroachment on tropical reserves; the popular anti-depressive Zoloft can prevent fungal infections.
Discovered: Tick bites can lead to red meat allergies; networking gets you farther ahead in the US job market; scientists develop ways to extract CO2 from the atmosphere; too much light at night can cause depression.
Discovered: The Hubble telescope finds a fifth moon circling lowly non-planet Pluto; global warming takes a toll on cows; watching nanoparticles break up blood clots is fun; scorpion venom is actually good for you (sometimes).
ExxonMobil CEO Rex Tillerson's predecessor Lee Raymond was famous for providing "logistical and moral support" (like cash) to climate change deniers, but these days Tillerson's taking a different, sort of casual-sounding tack: just deal with it.
Welcome to history: We're living in the hottest time ever for the United States, and this spring was the warmest since the country started keeping records, the National Oceanic and Atmospheric Administration reports.
The news from a new study on the earth's rainfall isn't the fact that global warming is making it rain more in wet areas and less in dry ones, it's how much scientists had previously underestimated that trend: By half.
Discovered: Apple has a new way of getting customers addicted, exercise makes you smarter, females engage in homophobic bullying too and more extreme weather is on the way.
The Guardian on Vietnam's mangroves, Salon on Mitt Romney's flip-flop on solar, Maria van der Hoeven on the state of carbon emissions, ClimateWire on diesel, and Mother Jones on rising sea levels
The polar bear has a become an (insufferably cute) symbol of global warming -- meaning we were extra keen on reading into a new study, published in Science, on the genetic origins of these Coke-drinking cuddlers, looking for insight on how climate change will affect them.
The New York Times on food deserts and global warming, Al Jazeera on the Gulf's mutated shrimp, The Washington Post on America's waning love of gas, and the Los Angeles Times on the future of nuclear in Japan
America's plan to curb greenhouse gas emissions was going so well… until the economy turned around. The Environmental Protection Agency broke the bad news in its greenhouse gas inventory report for 1990 through 2010.
Discovered: What makes plants better at being thirsty, climate change hasn't had a horrible impact on streams, forest might save us from our climate change woes and snowy areas are in trouble.
Thomas Friedman on the other Arab Spring, NPR on the warm winter, The Daily Climate on fires in the Amazon, Scientific American on a cleaner rickshaw, and Reuters on sick polar bears
Meteorologists say that temperatures in the United States aren't just above normal — they're shattering all the records on the books.
The Los Angeles Times on solar in the Southwest, The New Yorker on the ExxonMobile and the GOP, Good on plastic bags, National Geographic on global warming and Inuits, and BBC on endangered ducklings
Discovered: A GIF that proves the Antarctic Ice shelf's super fast disintegration, rising CO2 levels did cause global warming millions of years ago, a climate change fighting plant and China gets rain in all the wrong places.
Nicholas Kristof on arsenic in chicken, Slate on ecologically friendly farming in Cuba, Mother Jones on the low cost of stopping climate change, Good on not buying leather, and NPR on the end of the Ice Age.
Monday's best green reads: NPR on the Texas drought, Mother Jones on anti-coal activism, The New York Times on uranium-mine radiation, The Guardian on measuring global warming, and Good on an eco-friendly pantry.
As much as we're enjoying these halcyon early spring days of bare legs and light breezes, perfect al fresco weather, and walking jacketless through the park, we are also worried.
One way to tell that the world (or at least this country) is warming is to take a look at the map the USDA puts on the back of seed packets, which shows that winter temperatures have risen pretty much everywhere in the U.S.
A new report suggesting wind-turbines can emit more carbon dioxide than the most efficient gas turbines has put the pro-wind community on the defensive over the benefits of the supposed "clean" energy alternative.
After raising greenhouse gas emissions by 20 percent over the past two decades -- that's four times faster than the United States's rate -- Canada is abandoning its commitment to the Kyoto Protocol.
Cartoonist Tom Toles sees a similarity between our planet and Humpty Dumpty.
The company will address Congress on climate change's impact on coffee
Global warming won't be kind to sub-Saharan Africa and parts of Asia
Google's not the only Internet company trying to look green
Especially as Perry keeps taking shots at him
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