'Yet another wakeup call': global warming is here, its manmade, and we're not doing enough to stop it. Human actions are responsible for warming the Earth, reconfirms the landmark Intergovernmental Panel on Climate Change (IPCC) report released today, the first mammoth report on the physical science of climate change issued in seven years.
Scientists now say they are 95-100 percent certain that human actions—such as burning fossil fuels and cutting down forests—are behind the observed rise in global temperatures since at least 1950. Average temperatures have risen 0.85 degrees Celsius since 1880, but the new report warns that depending on how much more fossil fuels are burnt, temperature rises could exceed 4 degrees Celsius (9 degrees Fahrenheit) with untold consequences for global society.
"Boil down the IPCC report and here's what you find: climate change is real, it's happening now, human beings are the cause of this transformation, and only action by human beings can save the world from its worst impacts," U.S. Protocole de Kyoto. Is Humanity Pushing Earth Past a Tipping Point? Could human activity push Earth’s biological systems to a planet-wide tipping point, causing changes as radical as the Ice Age’s end — but with less pleasant results, and with billions of people along for a bumpy ride?
It’s by no means a settled scientific proposition, but many researchers say it’s worth considering — and not just as an apocalyptic warning or far-fetched speculation, but as a legitimate question raised by emerging science. “There are some biological realities we can’t ignore,” said paleoecologist Anthony Barnosky of the University of California, Berkeley.
“What I’d like to avoid is getting caught by surprise.” In “Approaching a state shift in Earth’s biosphere,” published June 6 in Nature, Barnosky and 21 co-authors cite 100 papers in summarizing what’s known about environmental tipping points. Deforestation in the Amazon jungle, which some scientists say could become a savannah. “We have quite good evidence for the Earth having tipping elements. US Climate Bomb is Ticking: What the Gas Industry Doesn't Want You to Know. Natural gas wells owned by Cabot Oil and Gas in Dimock, Pa., in December 2009.
(Photo: Fred R. Conrad / The New York Times)James Hansen's eye-opening article, "Game Over for the Climate," brought widespread attention to the Alberta Tar Sands in Canada as a source of carbon which, if tapped, would lead to irreversible global warming. There is another climate bomb in the United States, shale gas hydraulic fracking, which emits methane, more dangerous than CO2.
While many rhetorically call natural gas a bridge to the clean energy future, new information is showing the opposite; natural gas will hasten climate change, poisons the air, land and water, and carries unacceptable risks to our health. We spoke with experts - Cornell engineering professor Dr. Creating the Fog Around Fracking Extraction of oil and natural gas trapped in shale rock far below the earth's surface is an attempt to collect the last fragments of hydrocarbons for fuels and manufacturing.
The Susan G. The GOES-12 Weather Satellite: Watch a Decade of Extreme Weather in 3 Minutes. In its decade run positioned above our lonely planet, the National Oceanic and Atmospheric Administration’s GOES-12 satellite documented more than its fair share of superstorms.
Hurricane Katrina. Steroidstorm Sandy. Snowmageddeon 2010. You name it, GOES-12 saw it. But no more. In honor of its retirement, NOAA released a time-lapse video of the weather that GOES-12 gathered—one image for each of the 3,788 days it was on the outside looking in. Now, because the video is both far away and sped up, it’s quite difficult for the naked eye to pinpoint specific severe weather events. Global Warming & Climate Change. Les climatologues et le casse-tête de la "pause" du réchauffement. La ville de Los Angeles frappée par la pollution© AFP/Archives Frederic J.
Brown Paris (AFP) – Le ralentissement de la hausse du thermomètre mondial depuis 10-15 ans, s’il ne remet pas en cause les projections de réchauffement à long terme, est un casse-tête pour les climatologues du Giec qui vont présenter vendredi à Stockholm leur nouvel état des lieux de la planète. Changement climatique 2007 - rapport de synthèse. Europe vs CO2. Notre planète est en danger.
Les émissions de CO2 n'ont jamais été aussi élevées. Les glaces de l'Arctique sont en train de disparaître . La pollution émise par les véhicules est une cause majeure du changement climatique. Les modèles de voitures que nous conduisons pourraient être beaucoup plus efficaces. Les constructeurs beaucoup plus innovants. The global energy challenge: Awash with carbon. Even though countries are burning unprecedented amounts of oil and gas, the estimates of how much is left continue to grow, thanks to high prices and new technologies that have enabled companies to find and extract new resources.
A decade ago, it was the tar sands of Canada and Venezuela. More recently, hydraulic-fracturing technologies have opened up oil and gas resources in the United States. Across the globe, proven oil and gas reserves are 60% higher today than they were in 1991. At current consumption rates, those reserves would last for about 60 years — and that could be extended by new discoveries and unconventional deposits. Coal reserves have not increased in size, but the supply will last for at least a century at current rates of consumption. Www.cru.uea.ac.uk/cru/data/temperature/HadCRUT4.pdf. THE COUNT-UP TO 2052: AN OVERARCHING FRAMEWORK FOR ACTION. After the publication of the Korean, Chinese and Japanese language editions of “2052 – A Global Forecast for the Next Forty Years”, the author, Club of Rome Member Jorgen Randers, gave talks in China, Korea and Japan in June 2013.
There was an overwhelming media response in Asia. Inter alia, Jorgen Randers appeared on the Japanese Television program “Prime News 21″ (Fuji Television) on June 12th, 2013. Click here to watch the full interview (in English). To view the videos of the launch of the Report to the Club of Rome “2052-A Global Forecast for the Next Forty Years” in Rotterdam of May 7th 2012, please click here. The Italian edition of the “2052″ Report to the Club of Rome, written by Jorgen Randers, “2052. You can find more information on the Italian edition, which was published with Edizioni Ambiente, and a possibility to order here. Click here for a summary of the extensive media coverage of the launch event in Rome (in Italian). Video - Les projets les plus fous pour combattre le réchauffement climatique - Maxisciences. Le réchauffement climatique est bien présent et ses conséquences de plus en plus visibles.
Des scientifiques proposent des solutions folles. Mais le remède ne pourrait-il pas se révéler pire que le mal? Avez-vous déjà partagé cet article? Partager sur Facebook Partager sur Twitter. Le coût du changement climatique. UN Chief Scientist Urges Action On Climate Change: ‘We Have Five Minutes Before Midnight’ By Kiley Kroh "UN Chief Scientist Urges Action On Climate Change: ‘We Have Five Minutes Before Midnight’" CREDIT: AP Photo/Gurinder Osan Rajendra Pachuari, head of the United Nation’s group of climate scientists, said on Monday that humanity can no longer be content kicking the can down the road when it comes to climate change.
“We have five minutes before midnight,” he emphasized. “We may utilize the gifts of nature just as we choose, but in our books the debits are always equal to the credits. Les phénomènes météo extrêmes dus au dérèglement de courants atmosphériques selon une étude. Évolution du climat : du passé récent vers le futur - Page 3. Jean JOUZEL, Directeur de Recherches au Laboratoire des Sciences du Climat et de l'Environnement, rapporteur du GIECClaude LORIUS, Directeur de Recherches au Laboratoire de Glaciologie et Géophysique de l'Environnement du CNRS Le climat est un système extrêmement complexe, régi par de multiples interactions entre différents réservoirs (atmosphère, océan, hydrosphère, cryosphère, biosphère...).
Un très large spectre d'échelles de temps (de la journée à la centaine de milliers d'années) et d'espace (échelle locale, régionale ou globale) y intervient. Cette complexité explique que l'état de nos connaissances évolue lentement, tout au moins aux yeux du grand public. Cependant, nombreuses sont les avancées et les découvertes qui ont jalonné notre domaine de recherches au cours des dix dernières années.
Changement climatique. Réchauffement climatique. Conséquences du réchauffement. La banquise arctique pourrait complètement disparaître d'ici à quatre ans. La fonte des glaces de mer du pôle Nord s'accélère au point qu'elles pourraient avoir totalement disparu, en été, entre 2015 et 2016, selon Peter Wadhams, de l'université de Cambridge. Le Monde.fr | • Mis à jour le | Par Audrey Garric. Quand aura lieu la prochaine ère glaciaire ? Le Grand Refroidissement. CHAUD – Le changement climatique pourrait faire 100 millions de morts d’ici 2030.
La fonte des glaciers himalayens. Le climat du futur. Climate change & energy daily. How Resource Scarcity and Climate Change Could Produce a Global Explosion. (Image: Dark water via Shutterstock)Brace yourself. You may not be able to tell yet, but according to global experts and the U.S. intelligence community, the earth is already shifting under you. Whether you know it or not, you’re on a new planet, a resource-shock world of a sort humanity has never before experienced.
Two nightmare scenarios -- a global scarcity of vital resources and the onset of extreme climate change -- are already beginning to converge and in the coming decades are likely to produce a tidal wave of unrest, rebellion, competition, and conflict.