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April 2o15

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More than 50 cm of hail fall on Sydney, Australia. A booming cold system which formed over the southwest slopes and the Blue Mountains hit Sydney, Australia with destructive winds and devastating hail on April 25, 2015.

More than 50 cm of hail fall on Sydney, Australia

Seven factories collapsed under more than 50 cm (20 inches) of hail while roads turned into rivers. Power was cut to at least 700 homes and businesses, The Daily Telegraph reports. Dossier : agriculture et réchauffement climatique - NPA - Comité de l'Ariège. Le NPA a des idées sur l’agriculture, l’élevage et la pêche et… le réchauffement climatique.

Dossier : agriculture et réchauffement climatique - NPA - Comité de l'Ariège

Come on, people. We’re going to need a lot better than this if we want a strong Paris climate treaty. Will China and India offer up ambitious climate action plans this year?

Come on, people. We’re going to need a lot better than this if we want a strong Paris climate treaty

The fate of the Earth might be determined by the answer. Unless those large and fast-growing economies curb their emissions, we can’t avert catastrophic climate change. Their willingness to make serious commitments will be necessary to build enough momentum for an international deal at the U.N. Climate Change Conference in Paris this December. The success of Paris will not just be decided during the two-week negotiating marathon. Stench of dead fish in Rio lake won't spoil Olympic Games, officials hope. Below the open arms of the statue of Christ the Redeemer, and not far from the upmarket neighbourhood of Ipanema, the Rodrigo de Freitas lake is usually a popular spot for Rio’s cyclists, joggers and coconut sellers.

Stench of dead fish in Rio lake won't spoil Olympic Games, officials hope

But over the last few days the air around the lake has been pervaded by the stench of rotting fish. “The smell has been really unbearable,” said Teresa Rafaela Campos, 50, a resident of Jardim Botânico, one of the neighbourhoods next to the lake. “It makes you want to vomit.” Over the past week, 42.9 tonnes of dead fish have been retrieved from the lake that is due to host the rowing events for the 2016 Rio Olympic Games. Comlurb, the city’s waste management company, has dispatched a team of 62 refuse collectors to remove the fish from the Rodrigo de Freitas lake. According to Rio’s environmental secretariat, the fish were killed due to thermal shock.

Fears Grow for Indigenous People in Path of Massive Ethiopian Dam. Un blitz pour le climat à Québec. La ville de Québec a été le théâtre d’un véritable tourbillon d’activités autour de la question des changements climatiques ces derniers jours.

Un blitz pour le climat à Québec

Le tout a commencé samedi avec la « Marche Action Climat », l’une des plus importantes du genre au Canada, qui a regroupé plus de 25 000 personnes qui ont défilé pacifiquement et dans la joie pour terminer cette marche avec la formation d’un thermomètre géant illustrant l’augmentation des températures. Le message des marcheurs était simple : nous avons des attentes envers nos leaders dans la lutte aux changements climatiques et cela doit se faire par un virage important vers une économie sobre en carbone, et non par leur appui à des projets polluants comme celui du pipeline Énergie Est de TransCanada. Lundi, c’était le tour de la « Table ronde canadienne sur l’économie verte » organisée par SWITCH, l’Alliance pour une économie verte au Québec. Food, Farming and Climate Change: It’s Bigger than Everything Else. Record-breaking heat waves, long-term drought, “100-year floods” in consecutive years, and increasingly extreme superstorms are becoming the new normal.

Food, Farming and Climate Change: It’s Bigger than Everything Else

The planet is now facing an unprecedented era of accelerating and intensifying global climate change, with negative impacts already being widely felt. While global climate change will impact nearly everyone and everything, the greatest impact is already being felt by farmers and anyone who eats food. When we think of climate change and global warming, visions of coal-fired power plants and solar panels come to mind.

Policy discussions and personal action usually revolve around hybrid cars, energy-efficient homes and debates about the latest technological solutions. However, the global agriculture system is at the heart of both the problem and the solution. Industrial agriculture is a key driver in the generation of greenhouse gases (GHGs). Permafrost may not be the ticking “carbon bomb” scientists once thought. This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration.

Permafrost may not be the ticking “carbon bomb” scientists once thought

The ‘carbon bomb’ stored in the thawing Arctic permafrost may be released in a slow leak as global warming takes hold, rather than an eruption, according to new research. Scientists at the U.S. Geological Survey (USGS) found previous predictions of a catastrophic release of carbon dioxide and methane into the atmosphere as permafrost thaws may have been overstated. But the impact on the climate of future permafrost emissions remained significant. More than 1 trillion tonnes of carbon are stored in the soils beneath the Arctic tundra, double humanity’s emissions since the industrial revolution.

Beneath the tar sands is even dirtier oil, and industry is salivating over it. The price of crude oil has slumped to its lowest point in six years, and that has sent some major oil companies scrambling to get out of expensive tar-sands projects in Alberta, Canada.

Beneath the tar sands is even dirtier oil, and industry is salivating over it

Shell has pulled out of one of its largest lease applications, and Petrochina is attempting to get rid of its tar-sands assets. Environmentalists have watched the slowdown with great hope. Yet at the same time, some of those very same companies are positioning themselves to tap into an even more dirty and expensive kind of oil in Alberta: bitumen carbonates. In Wyoming, climate change is all too real. The scientists used satellite data to measure snow extent over time and found that snow is melting 16 ± 10 days earlier in the 2000s compared with 1972 to 1999.

In Wyoming, climate change is all too real

This plot shows the amount of snow cover (vertical axis) over the day of year (horizontal). The red line is the average from 1972 to 1999, and the purple from 2000 to 2013. The purple line is lower, meaning that at the same time of year, there was less snow in the more recent measurements than there used to be. Another Life: Sea-level debate heats up as Greenland’s ice melts. Whenever I feel the need to know where the wind is coming from, it helps that our hillside house straddles the compass exactly, so that one corner of my workroom is definitely pointing west.

Another Life: Sea-level debate heats up as Greenland’s ice melts

This doesn’t, for some reason, help persuade me that looking out to sea past my computer takes me straight to Newfoundland, home to grandsons of emigrant Irish cod fishermen and the weather we would rather not share with there and Labrador. I must attend, nonetheless, to the news of a big patch of the North Atlantic, on the direct line between Ireland and Newfoundland, that is perversely cooling down while the rest of the world is warming up. La plus grande extinction d'espèces de l'histoire causée par l'acidité - rts.ch - Sciences-Tech.

En absorbant le dioxyde de carbone (CO2) de l'atmosphère, la composition des océans s'est modifiée pour devenir plus acide, ce qui a eu des conséquences catastrophiques sur la faune et la flore. Plus de 90% des espèces animales marines et plus des deux-tiers des espèces terrestres ont alors disparu, ont expliqué ces scientifiques, dont l'étude est publiée jeudi dans la revue Science. Voici à quoi ressemblerait la Terre si toutes les glaces du globe fondaient. Plusieurs études le confirment : les banquises perdent du terrain d'année en année. Mais à quoi ressemblerait notre planète si toute la glace avait fondu ? Another state bans agency from discussing climate change. This story is reproduced here as part of the Climate Desk collaboration.

Autant de déni en 2015, pfiou ! – alwen

The climate change language police just struck again. California’s snowpack is at a record low. Thawing permafrost could be the worst climate threat you haven’t heard of. Some things get better when you take them out of the freezer. Ice cream, for example, is unarguably more delicious when it gets a little melt-y. Tell Shell to take real action against climate change and not go to COP Paris! Want to fix the climate? First, we have to change everything. There was an important launch earlier this week where a bunch of high-profile figures came together to sign on to a new game-changing enterprise. No, I’m not talking about the gathering where Jay-Z, Beyonce, Madonna, and a dozen other artists announced their new music streaming service Tidal.

I’m talking about The Next System, a project that seeks to disrupt or replace our traditional institutions for creating progressive change. Its backers include Greenpeace President Annie Leonard, clean energy champion Van Jones, United Steelworkers President Leo Gerard, climate activist (and Grist board member) Bill McKibben, and Zipcar co-founder Robin Chase, and hundreds of others.

What the Next System will actually achieve remains to be seen. For now, there’s a website and a declaration. Today’s political economic system is not programmed to secure the wellbeing of people, place and planet. Amériques - À sec, la Californie impose des mesures d'économie d'eau. Attentats au Kenya : "La corruption de l'armée et de la police est un problème majeur" En savoir plus Un ancien commandant de Guantanamo dans le viseur de la justice française En savoir plus Germanwings : la deuxième boîte noire confirme une action volontaire du copilote En savoir plus Kenya : les assaillants de l'université avaient méthode et sarcasme En savoir plus Six anciens otages de l’Hyper Cacher portent plainte contre les médias En savoir plus Industrie de la mode : les députés en guerre contre l'anorexie En savoir plus Présidence des conseils départementaux : la parité, c'est pas gagné En savoir plus Infographie : la nébuleuse d'Amedy Coulibaly En savoir plus Les combattants houthis se retirent du centre d'Aden En savoir plus À sec, la Californie impose des mesures d'économie d'eau En savoir plus Un "détail" qui divise le FN En savoir plus Nucléaire : un dégel, mais pas de réconciliation entre Washington et l'Iran En savoir plus.

At least nine dead as fatal storms hit Germany and Austria - BBC News. At least nine people have been killed in gales that have battered Germany, Austria, Switzerland and the UK. Seven people were killed in Germany, including two men whose car was hit by a tree. Record breaking Maysak becomes a Super Typhoon, heading toward Philippines. Typhoon "Maysak" has intensified into a Super Typhoon on March 31, 2015 reaching Category 5 hurricane status on the Saffir-Simpson scale.