Requiem pour une planète en surchauffe. Study: 10 Yrs. to Stop Climate Damage or Else! (as Pruitt Calls for U.S. to ‘Exit’ Paris Accord) - EnviroNews. (EnviroNews USA Headline News Desk) — Humanity has about a decade to reduce carbon emissions and meet the climate goals set by the monumental Paris Agreement (Paris accord) of 2016, according to an International Institute for Applied Systems Analysis (IIASA) study called, Pathways for balancing CO2 emissions and sinks.
The study’s urgent recommendations are in stark contrast with the mindset of Trump’s Environmental Protection Agency (EPA) Administrator Scott Pruitt, who on April 13, called for a complete “exit” from the historic Paris Agreement, calling it “a bad deal for America.” The Austrian study, published in the journal Nature Communications in February 2017, analyzes the release and uptake of carbon through both natural and anthropogenic (human-caused) sources.
The 1.5°C target he refers to is the secondary goal of the Paris accord, which has a primary goal of keeping the rise in global temperature to below 2°C. Watch global warming spiral out of control. The temperature spiral that took the world by storm has an update.
If you think the heat is on in our current climate, you ain’t seen nothing yet. To recap, University of Reading climate scientist Ed Hawkins wrecked the internet a few weeks ago with a revolutionary new way to look at global temperatures. 50 secondes pour comprendre pourquoi limiter le réchauffement planétaire à 2 degrés. Avant-première "2 degrés avant la fin du monde" +3 °C: portrait d'une planète en surchauffe. We broke a whole lotta climate records in 2014. As has been seen year after year, the warming of the Earth is causing major changes in many aspects of the planet’s climate, and 2014 was yet another year that showed this trend in stark relief, a report released Thursday says.
Numerous records were broken last year, according to the State of the Climate report, an annual checkup of the global climate published in a special issue of the journal Bulletin of the American Meteorological Society. Now in its 25th year, the report pulls together hundreds of scientists from dozens of countries to piece together the changes from the previous year in all aspects of the Earth’s climate — from carbon dioxide levels to the planet’s rising temperature, from glacier melt to change in soil moisture — and puts them in the context of decades-long trends. Réchauffement : le seuil limite des 2 °C est trop élevé. 2014 was officially the hottest year ever.
For many Americans, 2014 will be remembered for its multiple blasts of Arctic air and bitter winters.
And this week, another bout of freezing temperatures is marching east across the country, in the first major thermometer plunge of the season. But as cold as you may have been last year, it’s now official that 2014 was actually the hottest year globally since record-keeping began. So confirmed the Japan Meteorological Agency in preliminary data released Monday. The Japanese government agency monitors and records the long-term change of the global average surface temperatures and found that 2014 was far warmer than previous years. How much warmer? The data shows that four out of the five hottest years on record have occurred in the last decade: In second place is 1998, then 2010 and 2013 tied for third, and 2005 in fifth place. Two U.S. government agencies, NOAA and NASA, are expected to confirm the results of the Japanese observations in the coming weeks.
Samedi-sciences (152) : les volcans freinent le réchauffement climatique. Les éruptions volcaniques, mêmes mineures, qui se sont produites entre 2000 et 2013 pourraient avoir freiné de manière significative le réchauffement du climat planétaire, d’après une nouvelle étude parue dans la revue de l’Union américaine de géophysique (Geophysical Research Letters).
Cette étude dirigée par David Ridley, spécialiste de l’atmosphère au MIT, démontrent que les petites éruptions ont plus d’influence sur la température de l’atmosphère qu’on ne le pensait, et pourraient avoir fait baisser le thermomètre planétaire de 0,05 à 0,12°C. Depuis la fin des années 1990, la température de l’atmosphère ne s’est pas élevée autant que le prévoyaient les modèles, et n’est pas montée aussi vite que pendant la dernière partie du 20ème siècle (même si 2014 s’annonce comme l’année la plus chaude depuis que l’on a commencé à enregistrer les températures, en 1880). Le climat continue donc de se réchauffer, mais moins vite que ce à quoi l’on s’attendait. Climat : un rapport alarmiste pour Ségolène Royal. Samedi 6 septembre, la Ministre de l'Ecologie devait se rendre en Haute-Savoie pour visiter plusieurs sites du massif du Mont-Blanc.
What these historical kings and marauders can teach our leaders about climate change. There are no two ways about it: Humankind is, for the first time in our recorded history, living through a massive global climate shift of our own making.
Science paints today’s crisis as unprecedented in scope and consequence. January 2o14. Les clés de l’accord climatique de 2015. Scientists: Current international warming target is “disastrous” Ever since the 2009 climate talks in Copenhagen, world leaders have agreed on 2 degrees Celsius (3.6 degrees F) as the maximum acceptable global warming above pre-industrial levels to avert the worst impacts of climate change (today we’re at about 0.8 degrees C).
But a new study, led by climatologist James Hansen of Columbia University, argues that pollution plans aimed at that target would still result in “disastrous consequences,” from rampant sea-level rise to widespread extinction. A major goal of climate scientists since Copenhagen has been to convert the 2 degree limit into something useful for policymakers, namely, a specific total amount of carbon we can “afford” to dump into the atmosphere, mostly from burning fossil fuels in power plants (this is known as a carbon budget). Réchauffement du climat: c'est bien l'homme et c'est encore plus grave - Page 2.
Is climate change humanity’s greatest-ever risk management failure? Climate set to change “orders of magnitude” faster than at any other time in the past 65 million years. Dangerous global warming could be reversed, say scientists. Global warming could be reversed using a combination of burning trees and crops for energy, and capturing and storing carbon dioxide underground (CCS), according to an analysis by scientists.
But experts cautioned that trying such an approach after temperatures had passed dangerous levels could be problematic, as climate change reduced the number of trees available for “bioenergy.” The bioenergy and CCS method was the most cost-effective way of tackling carbon emissions, said the team at Chalmers University of Technology in Sweden, publishing their research in the journal Environmental Research Letters on Thursday. Such an approach could offset and even reverse other emissions from fossil fuels, they claimed. He said that to achieve a reversal of temperatures, the combination of bioenergy and CCS would need to be combined with a huge expansion in renewable energy or nuclear power, in order to reduce emissions almost to zero.
Climate Change Irreversible by 2017, Warns IEA. “The sky is falling!
The sky is falling!” In Chicken Little’s case, the sky turned out to be an acorn whacking the chick on his head. Limiter l'augmentation de la température planétaire à 2 ºC n'est plus réalisable. Pourquoi le changement climatique n’est pas (encore) une fatalité. Alors que chacun se réjouit de l’arrivée tant attendue du soleil, voilà qui pourrait gâcher la fête. Climat : une augmentation de 2 à 5°C à prévoir d’ici 2100.
Cloud shortage will push temperatures higher as climate warms. Climate scientists have looked to the heavens for help with their latest decades-long weather forecast. Their conclusion? “Oh, my god.” Science has long struggled to forecast how global temperatures will be affected by a doubling of carbon dioxide levels in the atmosphere compared with pre-industrial times, which looks likely to occur this century. Recent consensus suggests that temperatures will rise by between 1.5 and 5 degrees Celsius (2.7 to 5.4 F). With a rise in CO2 levels to 400 parts per million, up from 280 in the 19th century, the world has warmed by nearly 1 C so far. By modeling how clouds will be affected by the rising temperatures, a team of Australian and French scientists reported Wednesday in Nature that they expect the temperature rise to be “more than 3 degrees” – at the upper end of the projected range. “4C would likely be catastrophic rather than simply dangerous,” the report’s lead author, Australian climate scientist Steven Sherwood, told the Guardian.
Shifting Winds in the Arctic could have Significant Impact closer to Home - Weather Blog. Shifting Winds in the Arctic could have Significant Impact closer to Home October 12, 2012; 1:08 PM Higher pressure over the North American continent and Greenland are driving recent changes in the wind patterns across the Arctic, which are impacting sea ice and could bring changes to the weather across North America and Europe, according to a new study that was led by NOAA.
Researchers examined the wind patterns in the subarctic in the early summer between 2007 and 2012 as compared to the average for 1981 to 2010. They discovered that the previously normal west-to-east flowing upper-level winds have been replaced by a more north-south undulating, or wave-like pattern, according to the NOAA news report. This new wind pattern transports warmer air into the Arctic and pushes Arctic air farther south toward the mid-latitudes, potentially leading to more persistent weather patterns. Cloud mystery solved: Global temperatures to rise at least 4°C by 2100. December 31, 2013. Source: Science Daily Global average temperatures will rise at least 4°C by 2100 and potentially more than 8°C by 2200 if carbon dioxide emissions are not reduced according to new research published in Nature. Scientists found global climate is more sensitive to carbon dioxide than most previous estimates. Even in the best-case scenario, climate change will kick our asses.
Ask Andrew Guzman, a professor of international law at U.C.