Climat : Phil Jones publie toutes ses données brutes. Climate change has great impact on Himalaya region, reports reveal | United Academics. 0 Flares Twitter 0 Facebook 0 Reddit 0 StumbleUpon 0 LinkedIn 0 inShare0 Google+ 0 0 Flares × Despite the great ecological importance of the Hindu-Kush-Himalayas (HKH) region, site of Mt. Everest and listed as extremely vulnerable to climate change, it has received little to no attention from media and politicians. Three recent reports published by the International Centre for Integrated Mountain Development (ICIMOD) may change that situation. The reports, released on December 4th at the UN Climate talks in Durban, South Africa, document the glaciers and snow covered areas in the region, along with the effects of climate change throughout the years.
The prospects, however, are not good: over the last 30 years, the glaciers have shrunk by fifth, while there was an overall decrease of snow cover in the central region and overall, according to the reports. A rigorous study on the HKH region has been a long time coming. Source: International Centre for Integrated Mountain Development. Distinguishing Climate "Deniers" From "Skeptics" Can Evolution Outpace Climate Change? | Reasons To Believe. In sports, a slow reaction time can prove devastating for players. Think of a batter facing a pitcher’s fastball or a goalie trying to block a puck or a NASCAR driver attempting to avoid a collision. In biology, being slow to change can be devastating for a species—and the naturalistic worldview.
A research study, recently published in the British journal Proceedings of the Royal Society B, shows that a species once thought to be an efficient evolver may lack the evolutionary reaction speed to survive the current rate of temperature change occurring in its environment.1 Such experiments on evolutionary reaction speeds not only shed light on conservation biology but may also provide important tests of competing creation/evolution models. The species in question is a tiny tide pool copepod known as Tigriopus californicus. This creature ranges from 0.25 to 2.5 millimeters in size and feeds on microscopic algae, protists, and bacteria.
Subjects: Macro vs. Micro Evolution Endnotes: 1. The Influence of Late Quaternary Climate-Change Velocity on Species Endemism : Greg Laden's Blog. Rapid climate change can cause species extinction. But if a species is highly mobile or wide-ranging, then that effect may be attenuated. And, more rapid climate change would be more serious a problem than less rapid climate change. Therefore, there should be a relationship between species mobility (migration) and the rate, or velocity, of climate change vis-a-vis extinction. This is a nice set of hypotheses which have been tested in a recent paper. The effects of climate change on biodiversity should depend in part on climate displacement rate (climate-change velocity) and its interaction with species’ capacity to migrate. The effect is stronger in the northern hemisphere, stronger in big flat places and attenuated on mountain ranges, and according to this paper, explains some of the variation we see in modern species distribution as an outcome of climate change sine the Last Glacial Maximum (ca 18,000-21,000 years ago).
The paper, which came out in Science, has it’s own podcast! Une histoire de la découverte et de la lutte contre le trou de la couche d'ozone. For Climate Change Adaptation, Traditional Knowledge is Critical | Conservation International Blog. Sarshen Marais is currently attending the United Nations Framework Convention on Climate Change (UNFCCC) meeting in Bonn, Germany. Here, she blogs about a side event on traditional knowledge and climate change adaptation, an event presented by CI, UNESCO, the Indigenous Peoples of Africa Coordinating Committee and the UN’s World Meteorological Organization (WMO). Read other posts about Bonn here. Hindou Oumarou Ibrahim is a member of the Mbororo people — nomadic and semi-nomadic livestock herders whose territory includes Niger, Nigeria, Cameroon, Central African Republic and Chad. For her, climate change is not a distant issue; in the last few years, her people have faced increasing drought, desertification and biodiversity loss in their homeland.
Pasture and water are essential elements for nomadic livestock herders. Migration distances of herders can range from 110–1000 kilometers (68-620 miles). Adaptation is not just about how people survive, it is also about human rights. FreeSpeech. Which nations are most responsible for climate change? | Environment. A scientist standing in front of a globe during the UN climate conference in Copenhagen. Photograph: Axel Schmidt/AFP/Getty Images There are many different ways to compare national responsibility for climate change. These include current emissions – which can be viewed in absolute figures or on a per capita basis – as well as historical emissions and the carbon footprint of consumption, including imported goods.
There's also the question of whether you include deforestation, or even the extraction of fossil fuels. Each approach gives a different insight – and none tells the whole story on its own. Following is quick guide to the data. View the interactive Click to explore all these issues and data on The Carbon Map Current CO2 emissions The simplest and most common way to compare the emissions of countries is to add up all the fossil fuels burned and cement produced in each nation and convert that into CO2. 1. All greenhouse gas emissions 1. Emissions per capita Historical emissions 1. 1. Oregon Sea Grant videos on ocean acidification. Ocean acidification A news stream provided by the Ocean Acidification International Coordination Centre (OA-ICC) « Une scientifique monégasque en mission en Papouasie Nouvelle-Guinée (in French) OCB hosts first meeting for ocean acidification researchers » Oregon Sea Grant videos on ocean acidification Published 20 May 2011 Media coverage Leave a Comment Dr.
Richard Feely of NOAA’s Pacific Marine Experimental Lab discusses new findings about how increased carbon dioxide in the atmosphere is making the oceans more acidic, and what that bodes for ocean ecosystems and the marine animals that inhabit them. (1) What is ocean acidification (1:38) (2) How are ocean animals affected? (3) How will ocean ecosystems be affected? Sea Grant Oregon, Web site and videos.
Rate this: Rate This Share this post! More Related Ocean acidification background from leading scientistIn "Media coverage" The origin and impacts of ocean acidification (videos)In "Web sites and blogs" Feed for this Entry Trackback Address OUP book. Effets de terre | Des nouvelles de la planète. Watch The Earth Breathe: A History of Atmospheric CO2 (Video) File this one in the interestingly geeky diversion category: Coming to TreeHugger via The Cost of Energy is what they are calling the "coolest looking graph in climate science"--which helps visualize why global average temperatures are rising, oceans are becoming more acidic, the weather's getting weirder, and the whole shebang of other climate change effects we're currently experiencing and will continue to experience.There's a whole lot crammed onto that small YouTube video size, so here's what you're be looking at: That moving line on the left represents atmospheric CO2 as measured at various places around the globe--the red dot is at Mauna Loa in Hawaii; the blue one is at the South Pole; the grey ones are at various locations that pop up on the map in the upper right.
The spinning clock at middle right represents time in years and months. The trend should be clear. Like this? Climate, Energy & Transport. Introduction to feedbacks. Guest blog by Chris Colose (e-mail: colose-at-wisc.edu) UPDATE: This is Part 1 of two posts by Chris. Part 2 is here RealClimate has recently featured a series of posts on the greenhouse effect and troposphere, articulating some of the more important physics of global warming from first principles. It is worthwhile reviewing these elements every so often with different slants just so the broad picture is not lost in the disagreement over details. Feedbacks are components of the climate system that are constrained by the background climate itself; they don’t cause it to depart from its reference norm on their own, but rather may amplify or dampen some other initial push. Another thought experiment can help to appreciate the implications.
If you could remove all of the CO2 from our atmosphere, aside from making the planet more efficient at losing its heat to space (thus cooling) you would do a couple of things. Feedback behavior Fig 1: Feedback factor for different climate responses. Geographically based Economic data (G-Econ) | Geographically based Economic data (G-Econ) 350.org.
Climate Matters. Scientists Speak Out on Climate: Is Anyone Listening? In the light of recent varied efforts to focus public attention on the risks of climate change, we asked Earth Institute scientists what they want the public to understand about the issue and how they see their roles. FutureCoast: A Voicemail Vision of Climate-to-Be Melting glaciers, collapsing sea ice, water supplies under stress, increases in storm frequency, impacts on food supply — are we reading a synopsis of the IPCC report or messages from the future delivered through a software glitch?
People around the world are posing this question. Diminishing Ice Intensifies Spotlight on Arctic As the arctic region loses ice in a changing climate, the economic and social tradeoffs are unclear. Explore the Arctic Ocean With ‘IceTracker’ Obama’s Climate Legacy Depends on EPA’s Gina McCarthy Managing Water in a Dry Land Farmers in Senegal Use Forecasts to Combat Climate Risks Measuring the Effect of China’s Arctic Interests A Healthy Collaboration. State of the Planet. 2010 Report: Climate Change — Summary. The State of our Nation’s Birds on Private Lands This fourth State of the Birds report highlights the enormous contributions private landowners make to bird and habitat conservation, and opportunities for increased contributions. Roughly 60% of land area in the United States (1.43 billion acres) is privately owned by millions of individuals, families, organizations, and corporations, including 2 million ranchers and farmers and about 10 million woodland owners.
More than 100 species have 50% or more of their U.S. breeding distribution on private lands. Birds are important indicators of the health of our environment. To assess bird populations and conservation opportunities on private lands across the nation, we combined the latest eBird distribution data with land ownership data from the Protected Areas Database of the U.S. As in past reports, we focused on species dependent on a single primary habitat, or habitat obligates. Working Lands Sustain People and Birds Previous page Next page. Climate Denial Crock of the Week · Brighter Planet. Aaron Klug - Global warming: the greenhouse effect. Born in Lithuania in 1926, Aaron Klug is a British chemist and biophysicist, was awarded the Nobel Prize in Chemistry in 1982 for developments in electron microscopy and his work on complexes of nucleic acids and proteins.
He studied crystallography at the University of Cape Town before moving to England, completing his doctorate in 1953 at Trinity College, Cambridge. In 1981, he was awarded the Louisa Gross Horwitz Prize from Columbia University. His long and influential career led to a knighthood in 1988. He was also elected President of the Royal Society, and served there from 1995-2000. There was already a strong indication of global warming and, in fact, George brought his own work on atmospheric chemistry to help explain the depletion of the ozone hole. Title: Global warming: the greenhouse effect Listeners: John Finch Ken Holmes John Finch is a retired member of staff of the Medical Research Council Laboratory of Molecular Biology in Cambridge, UK.
Duration: 3 minutes, 52 seconds. Climate sensitivity to CO2 probed. 29 November 2011Last updated at 09:51 By Jennifer Carpenter Science reporter, BBC News Models are used to project future climatic scenarios Global temperatures could be less sensitive to changing atmospheric carbon dioxide (CO2) levels than previously thought, a study suggests. The researchers said people should still expect to see "drastic changes" in climate worldwide, but that the risk was a little less imminent. The results are published in Science. The study is the latest to derive a value for "climate sensitivity" - the temperature rise for a doubling of CO2 concentrations - from palaeontology. Previous studies have produced a mean value around 3C; but the new analysis concludes it is somewhat lower, around 2.3C. Continue reading the main story “Start Quote Given that no one is doing very much around the planet [about] mitigating CO2 emissions, we have a bit more time” End QuoteAntoni Rosell-MeleAutonomous University of Barcelona More time?
Continue reading the main story Adaptation.