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Spring just keeps getting earlier. Guess what’s behind it? In some parts of the country, the season just breezed in three weeks ahead of schedule.

Spring just keeps getting earlier. Guess what’s behind it?

Balmy weather may seem like more good news after an already unseasonably warm winter, but pause a beat before you reach for your flip-flops. According to the “spring index,” a long-term data set which tracks the start of the season from year-to-year, spring is showing up earlier and earlier across the United States. The culprit behind the trend? Climate change. And it’s bringing a batch of nasty consequences. Spring isn’t shifting smoothly, either. Focus sur les étés extrêmes. L'été météorologique, qui commence le 1er juin et s'achève à la fin du mois d'août, correspond à la période la plus chaude de l'année dans l'hémisphère Nord.

Focus sur les étés extrêmes

En moyenne, sur l'Hexagone, la température normale* de la saison est de 19,9°C. Petit tour d'horizon des étés records en matière de température : Depuis 1900, c'est l'été 2003 qui a été sans conteste le plus chaud, avec une température moyenne de 23,1°C, soit 3,2°degrés au-dessus la normale. Antarctica’s “bleeding glacier” is kind of terrifying. We knew we’d been doing some damage to the planet, but we didn’t realize we’d been making it bleed.

Antarctica’s “bleeding glacier” is kind of terrifying

OK, fine, blood isn’t really seeping out of that glacier in the photo above. What is seeping out from this red waterfall, discovered in the Taylor Glacier in Antarctica’s McMurdo Dry Valley, in 1911, is in fact the run-off from a microbe-filled lake deep beneath the surface of the glacier. The run-off seeps out through a fissure in the glacier, and it is red not because the poor microbes are bleeding, but because it comes from a very iron-rich environment. Les océans montent dangereusement, sauf autour des îles.

La montée du niveau des océans due au réchauffement climatique ne semble pas concerner les îles.

Les océans montent dangereusement, sauf autour des îles

Par PapyJako.La peur, un puissant moyen de pouvoir De toute éternité, la peur a été un des instruments privilégiés de tous les pouvoirs. Did Climate Change Worsen the Colorado Floods? Last Thursday, as torrential rains turned into floods that washed away homes, roads, and bridges in Boulder, Colorado, and the surrounding region, the local National Weather Service forecast office went ahead and said what we were all thinking.

Did Climate Change Worsen the Colorado Floods?

It put it like this: The word "biblical" certainly captures the almost preternatural scale of the Colorado floods, and the rainfall that caused them. Indeed, according to climate scientist Martin Hoerling of the National Oceanic and Atmospheric Administration, "this single event has now made the calendar year (2013) the single wettest year on record for Boulder. " The right climate for action. A Rural Fire Service brigade abandons a truck during the Sydney bushfires last week.

The right climate for action

Photo: Nick Moir In the searing Max Frisch morality play Biedermann und die Brandstifter (The Fire Raisers) the hapless Mr Biedermann invites three people into his home ignoring the obvious reality that they are arsonists. L'impressionnante fracture d'un glacier filmée par des chercheurs au Groenland. California Gov. Jerry Brown blames climate change for early wildfires.

Does early snow disprove global warming? During the run-up to Wednesday’s debate, I remember seeing kids in the background of live shots wearing shorts and thinking, “Huh.

Does early snow disprove global warming?

Looks pretty nice in Denver.” Friday morning, it snowed there. It snowed this week in Minnesota and North Dakota, too, in some places, more than a foot deep. The New York Times notes that such a snowfall is rare. Where did all the tornadoes go? The drought that parched much of the nation during the past year didn’t just stunt crops — it also stunted the annual yield of tornadoes.

Where did all the tornadoes go?

And an unseasonably chilly spring is so far helping to keep the hellish twisters at bay — although weather forecasters warn that trend may be short-lived. During the past 12 months, the U.S. was hit by an estimated 197 tornadoes rated EF1 or stronger on the Enhanced Fujita scale, which ranks tornadoes according to their destructive potential from a low “0″ up to a devastating “5.” That was the lowest number of such tornadoes during any 12-month period since record-keeping began in 1954 — well below the previous low of 247 recorded between July 1990 and June 1991.

That’s in huge contrast to the onslaught of tornadoes that tore deadly paths of destruction through the nation in 2011, which was a record-busting year of tornadoes galore. Weird wintry weather and the climate-change link. It was high time to pass around a few cold ones in the shade of an awning in Amarillo, Texas, just a few days ago.

Weird wintry weather and the climate-change link

Now it’s time to hunker inside, drink whiskey neat, and play charades. The city broke a heat record on April 30, reaching a scorching hot 97 degrees. Opinion: Record snow in a warming world? The science is clear. Snow blankets Boston on Friday, Feb. 8, 2013.

Opinion: Record snow in a warming world? The science is clear

Heavier winter storms fit a pattern predicted by climate scientists as the world warms. Photo by Christopher Petroff/flickr. Feb. 9, 2012. "Global warming" hits Germany: Coldest and snowiest day in decades. Vidéo : une tornade au Portugal fait une vingtaine de blessés. Ces trois derniers jours, le Portugal a été balayé par une vague de mauvais temps qui a fait de sérieux dégâts dans le pays.

Une tornade s'est même formée vendredi et a blessé une vingtaine de personnes. Video - La tornade de Toulouse filmée par les internautes. Video - Le déplacement et la fonte du glacier du Bionnassay en images - Maxisciences. A raison de six photos par jour capturée au niveau du glacier du Bionnassay, dans le massif du Mont-Blanc pendant 2 ans et demi, on se rend bien compte de sa vitesse de déplacement. 46 Square Miles Of Iceberg Break Off In Greenland (Video)

A huge iceberg that’s about twice the size of Manhattan has torn off the Petermann Glacier in Greenland, illustrating another dramatic change to the warming island. For several years, scientists had been watching a long crack near the tip of the northerly Petermann Glacier. On Monday, July 16, NASA satellites showed it had broken completely, freeing an iceberg measuring 46 square miles. Un iceberg gros comme New York est en train de se détacher de l’Antarctique. La canicule, un signe du réchauffement climatique. Météorologues et climatologues sont d'accord: la canicule qui vient de frapper la France ne constitue pas une preuve du réchauffement climatique, mais la multiplication et la sévérité de ces vagues de chaleur sont un signe clair de l'évolution du climat sur la planète. «Si on prend l'événement en lui-même, on ne peut pas l'attribuer à 100% au réchauffement climatique», note le prévisionniste de Météo-France Jérôme Lecou, qui rappelle que «de très forts phénomènes de chaleur ont eu lieu dans le passé», alors que le réchauffement n'avait pas commencé.

Photos - Un papillon exotique découvert au Québec. Avez-vous déjà partagé cet article? Partager sur Facebook Partager sur Twitter. Global Warming's Unseen Effects on Plants and Butterflies. Many of the effects of climate change and global warming — such as the recent strangely snowless, mild winter on the East Coast — are too apparent.

Record Heat Wave Sweeps Across U.S. If you look at any meteorology map these days, you’ll notice a lot more pink and red (indicating high temperatures) than you’re probably accustomed to. Sure, it’s summer and it gets hot, but it’s only the beginning of July, and we still have the majority of the hottest weeks to go. Over the past week particularly, temperatures have soared, breaking records in numerous cities and states. Mid-Atlantic residents are still recovering from a rare “derecho” storm that caused numerous high-powered thunderstorms and massive power outages across the region. The powerful storms killed 13 people and left millions without power as temperatures rose into the 90s and low 100s.

Must-See: Best News Report This Year On Link Between Climate Change And Extreme Weather. By Joe Romm "Must-See: Best News Report This Year On Link Between Climate Change And Extreme Weather" Last week I wrote that “Every Network Gets Extreme Weather Story Right.” Spring 2012 Likely To Be The Hottest Ever. The spring of 2012 is due to be the hottest in 117 years, since 1895. Considering this past winter was the fourth-hottest on record (with an average temperature of 42 degrees Fahrenheit in the contiguous US states), March simply the hottest and April the third-hottest, that may come as no surprise. University of Maryland professor Steve Scolnik offers a closer look at the changes in the temperature on his blog Climate Capital, drawing on “over half a century of weather watching.”

It was back in 1910 that there were record high temperatures in spring; back then, the national average temperature was 55.1 degrees. But as Scolnik’s analysis reveals, the average temperatures for March and April of this year exceed those of March and April in 1910: March 2012 was 0.5 degrees higher and April 2012, 1 degree higher. Tree Death Rates Double In Old-Growth Forests. Regional warming is likely to blame for a steady increase in tree death rates in old-growth forests of the western United States, according to 2009 study in Science. The study, led by the U.S. Angleterre : grande sécheresse déclarée. L’été semble encore loin, pourtant, en Grande-Bretagne, les habitants doivent déjà restreindre leur consommation d’eau. Le manque de pluies provoque une importante sécheresse, pire qu’en 1976, et l’arrivée des beaux jours ne va pas arranger les choses.

Une sécheresse exceptionnelle frappe l'Europe. Une sécheresse hivernale, inhabituelle, s'est installée sur l'Europe occidentale et une part de la Méditerranée depuis le début de l'année. Sécheresse : 80% des nappes phréatiques ont un niveau «inférieur à la normale» Après un printemps 2011 historiquement sec, et un mois de février 2012 «extrêmement sec», le phénomène de sécheresse est de plus en plus préoccupant en France. Selon le dernier relevé du Bureau de recherches géologiques et minières (BRGM), 80% des nappes phréatiques affichent désormais un niveau «inférieur à la normale». «Cette situation est le résultat de plusieurs années de déficit pluviométrique», souligne le BRGM.

Ces chiffres de mars sont du même ordre que celui du 1er novembre dernier. Did climate change cause the epic Great Plains drought? The Great Plains are finally beginning to enjoy cloudbursts of relief from two years of epic drought — the worst in the region’s history, and part of the most widespread drought to afflict the U.S. since 2000. As farms and ecosystems rehydrate, it’s worth asking: Did we do this? Did climate change cause the Great Plains drought, and the tens of billions of dollars of damage it inflicted? The answer to these questions appears to be “no.” Or, wait, make that “yes.” Desertification crisis affecting 168 countries worldwide, study shows. Drought: What happens when Asia's 'water tower' dries up? Flood-drought-flood: Is this the new normal?

Colorado fire: Is global warming one of the culprits? (+video) Mexique: le gel et la sécheresse menacent de provoquer une famine.