background preloader

Climat

Facebook Twitter

Schéma expliquant les pics de pollution aux particules fines #AFP. Eye-Popping View of CO2, Critical Step for Carbon-Cycle Science. From the Arctic to the Mojave Desert, terrestrial and marine habitats are rapidly changing.

Eye-Popping View of CO2, Critical Step for Carbon-Cycle Science

These changes impact animals that are adapted to specific ecological niches, sometimes displacing them or reducing their numbers. From their privileged vantage point, satellites are particularly well-suited to observe habitat transformation and help scientists forecast impacts on the distribution, abundance and migration of animals. In a press conference Monday at the American Geophysical Union meeting in San Francisco, three researchers discussed how detailed satellite observations have facilitated ecological studies of change over time. The presenters discussed how changes in Arctic sea ice cover have helped scientists predict a 30 percent drop in the global population of polar bears over the next 35 years. "North Pole is an insane 36 degrees warmer than normal as winter descends" [that's 36° F, but still, it means 20° C] L'augmentation des températures par @AFPgraphics #AFP. Intensification des typhons dans le Pacifique Ouest – Planète Vivante. En février 2008, j’ai écrit un article sur ce blog, intitulé « Réchauffement climatique et cyclones » à partir d’éléments d’un rapport du groupe II du GIEC, dans lequel apparaissait déjà ce lien entre le changement climatique et les cyclones tropicaux.

Intensification des typhons dans le Pacifique Ouest – Planète Vivante

Super Typhon Meranti mise à jour (13/09/2016 23h UTC) – Planète Vivante. A Brewing Storm: the climate change risks to coffee. Synopsis Aug 29, 2016 - 12:01am The evidence is clear that climate change is already beginning to impact on coffee production.

A Brewing Storm: the climate change risks to coffee

As the world continues to warm, market and climate volatility will combine to cause problems for coffee producers and consumers. Fairtrade Australia & New Zealand commissioned this report by the Climate Institute to better understand the extent to which climate change is impacting coffee production globally.

It is hoped that insights gained from this report will lead to greater engagement, from the coffee industry and consumers, with key initiatives that aim to protect this valuable commodity, and the millions of livelihoods it supports around the world, for future generations. Just 90 companies are to blame for most climate change, this 'carbon accountant' says. Last month, geographer Richard Heede received a subpoena from Representative Lamar Smith (R-TX), chairman of the House of Representatives Committee on Science, Space, and Technology.

Smith, a climate change doubter, became concerned when the attorneys general of several states launched investigations into whether ExxonMobil had committed fraud by sowing doubts about climate change even as its own scientists knew it was taking place. The congressman suspected a conspiracy between the attorneys general and environmental advocates, and he wanted to see all the communications among them. Predictably, his targets included advocacy organizations such as Greenpeace, 350.org, and the Union of Concerned Scientists. 167 Tiny Maps Tell the Major Story of Climate Change. Climate change just got another telling visual courtesy of the famed temperature spiral creator.

167 Tiny Maps Tell the Major Story of Climate Change

But rather than a graph, it’s a series of 167 maps. Alone, they each tell the story of whether a year was mostly hot or mostly cold or mostly average. Together, they show unequivocally how much our planet has warmed since the 1850s, including the rapid rise over the past three decades. Storm Spaces - Views of the World. Tropical cyclonic systems are generally referred to as tropical storms.

Storm Spaces - Views of the World

They are better known by their regional names, such as hurricanes in the Caribbean and North America, or typhoons in parts of Asia. They form near the equator over larger bodies of warm waters that evaporate from the ocean surface and fuel these emerging storm systems. Five Years of Drought – Adventures In Mapping. Inondations historiques en Louisiane et dans le Mississipi (août 2016) – Planète Vivante. Depuis le 13 août, des pluies torrentielles se sont abattues sur la Louisiane et le Mississipi provoquant l’évacuation de plus de 30 000 habitants et la mort de sept personnes.

Inondations historiques en Louisiane et dans le Mississipi (août 2016) – Planète Vivante

Infographie. Quelles sont les catastrophes naturelles les plus meurtrières ? «La rapidité du réchauffement actuel est sans équivalent depuis au moins 8 000 ans» «Notre maison brûle et nous regardons ailleurs.»

«La rapidité du réchauffement actuel est sans équivalent depuis au moins 8 000 ans»

VentuSky - Wind, Rain and Temperature Maps. Windyty - weather forecast map reinvented. Weather forecasts are boring.

Windyty - weather forecast map reinvented

Ivo – developer, pilot and a kite surfer from Czech Republic decided to do something about it. He used an open source code from the Earth project and developed Windyty – one of those websites where you can lose a lot of time just staring and trying new views. The project is essentially a map of winds you can choose to overlay with weather conditions such as humidity and pressure zones. The map is minimalistic, no cities or roads, but click on the map and you get a detailed local forecast of the spot you are looking at.

You can also zoom in up to the street level to get more details, but the map looks best in a smaller scale. Resurrection Plants May be the Answer to Global Food Shortage. It’s hard to recall in recent memory any year that didn’t set a record high temperature somewhere.

Resurrection Plants May be the Answer to Global Food Shortage

Climate change continues to devastate the globe with everything from drought and dangerous weather events to rising sea levels and ecosystem degradation. However, perhaps the most imminent threats posed by climate change are those that affect humans directly, especially those of us in already-vulnerable parts of the world. Water scarcity in developing nations is nothing new and continues to worsen. However, due to crippling drought, another dagger is being thrust into ground: increased food shortage. In areas of the world such as Africa and the Middle East, where food is already in short supply, how can people possibly cope with the prospect of even less? Climate Change is Altering How the Poles Drift. The spin of the earth is a constant in our lives.

Climate Change is Altering How the Poles Drift

Le coût des catastrophes naturelles évalué à 90 milliards de dollars en 2015. Global Temperature Anomalies - Views of the World. Recent figures released by the NASA as well as the British Met Office and NOAA confirm that 2015 was the hottest year ever recorded. In addition, the period of the past five years was also the warmest in recent times. Carte. En 2040, une planète dangereusement aride. L’auteur. What is climate change? Libération.fr – Le P'tit Libé. Réchauffement climatique : La carte montrant l’influence de la hausse des témpératures sur l’économie. "Un changement climatique non jugulé va probablement réduire le revenu du terrien moyen de près de 23 % en 2100, selon des estimations contenues dans une recherche publiée par la revue scientifique Nature et co-réalisée par deux professeurs de l'Université de Berkeley, en Californie", écrit le Berkeley News.

Le magazine, qui publie cette carte interactive, ajoute que les recherches indiquent que le changement climatique va accroître les inégalités au niveau global, peut-être de manière dramatique, car le réchauffement est bon pour les pays froids, qui tendent à être plus riches, et plus dommageable pour les pays chauds, qui tendent à être plus pauvres. "Les différences quant à l'impact du réchauffement sont essentiellement fonction de la température moyenne des pays, car le réchauffement augmente la productivité dans les pays froids", écrivent les chercheurs. "En particulier, l'Europe pourrait bénéficier d'une augmentation des températures moyennes. " Climate change emissions footprint calculator.

Since February, countries have been publishing their plans for cutting greenhouse gas (GHG) emissions, ahead of a December UN meeting in Paris that aims to deliver a new accord on climate change... If every country keeps pumping GHGs into the environment at its current rate until 2100, the planet’s surface will warm by an average of up to 6°C, bringing about a dramatically different climate...

Countries’ pledges for emissions cuts mostly cover the period between 2020 and 2030. L'océan, maître... et victime du climat. L'Arctique et l'ours, par Cécile Marin (Le Monde diplomatique, septembre 2015) WFP Health sur Twitter : "The story of #climatechange and #development can be told in three simple pie charts! @CGDev. Climate Change and Development in Three Charts.

Paul Beckwith sur Twitter : "2) Close-ups: #Arctic #sea #ice for Aug 4th 2015, 2014, 2013 and 2012. Very little thick ice left this year. #climate. Climate Change sur Twitter : "One graphic shows exactly who is responsible for climate change. Le Monde.fr - Actualité à la Une. Comparison of 1997 and 2015 El Niño. Conditions are currently warming up in the Pacific, and the NOAA Climate Prediction Center expects a greater than 90% chance that El Niño will continue through the winter and most likely into the spring.

This image shows the July 13-19, 2015 sea surface temperature departure from the 1981-2010 average. In addition to the warmer than normal waters generated by the El Niño conditions, the Pacific Decadal Oscillation is also creating persistently higher than normal sea surface temperatures in the northeastern Pacific. For the most recent analysis by the Climate Prediction Center, please click here. Note: this post was modified from its original to eliminate any confusion between the impacts of the current El Niño conditions and those of the 1997-1998 event. La forêt boréale américaine est en feu.

Série de rapports : Baissons la chaleur. El Niño Is Coming Back: Here's What You Need to Know. Storm spaces. Benjamin Hennig maps the cyclones and typhoons created by the world's weather systems Tropical cyclonic systems are generally referred to as tropical storms. They are better known by their regional names, such as hurricanes in the Caribbean and North America, or typhoons in parts of Asia. They form near the equator over larger bodies of warm waters that evaporate from the ocean surface and fuel these emerging storm systems. Living on the Edge: The Extremes of Human Inhabitance. Photo credit Edinburgh of the Seven Seas, Tristan da Cunha Distance from nearest settlement: 1,350 mi (2,173 km)

Theconversation. Until recently, you might be forgiven for thinking that the oceans were a trivial component of Earth’s climate system, and that the consequences of change were minimal. After all, only 5% of papers published on climate change involve ocean systems. The Intergovernmental Panel on Climate Change (IPCC), which evaluates the peer-reviewed scientific literature, did not devote a regional chapter to the ocean until its most recent major report. California's Long Challenge With Drought. Le Monde en cartes sur Twitter : "Coup de chaud sur le rêve californien : #cartographie des conséquences de 4 ans de sécheresse. Wind history map. Infographic: What Climate Change Means for Africa and Asia. Where carbon emissions are greatest - Washington Post. Air Pollution in World: Real-time Air Quality Index Visual Map.

Historical Hurricane Tracks. Sécheresse en Californie.