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La thèse du réchauffement

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Environnement : l'Académie des sciences désavoue les climato-sceptiques - ENVIRONNEMENT. La thèse du réchauffement climatique anthropique. Un article de Wikipédia, l'encyclopédie libre.

La thèse du réchauffement climatique anthropique

En 1988, l'ONU crée le groupe d'experts intergouvernemental sur l'évolution du climat (GIEC) chargé de faire une synthèse des études scientifiques sur cette question. Dans son dernier et quatrième rapport, auquel ont participé plus de 2 500 scientifiques de 130 pays[1], le GIEC affirme que le réchauffement climatique depuis 1950 est très probablement[c 1] dû à l'augmentation des gaz à effet de serre d'origine anthropique. Les conclusions du GIEC ont été approuvées par plus de 40 sociétés scientifiques et académies des sciences, y compris l'ensemble des académies nationales des sciences des grands pays industrialisés[2].

Les projections des modèles climatiques présentées dans le dernier rapport du Giec indiquent que la température de surface du globe est susceptible d'augmenter de 1,1 à 6,4 °C supplémentaires au cours du XXIe siècle. Observations liées au réchauffement climatique actuel[modifier | modifier le code] Groupe d'experts intergouvernemental sur l'évolution du climat -

Un article de Wikipédia, l'encyclopédie libre.

Groupe d'experts intergouvernemental sur l'évolution du climat -

Le Groupe d'experts intergouvernemental sur l'évolution du climat (GIEC) est un organisme intergouvernemental, ouvert à tous les pays membres de l'ONU. Il « a pour mission d’évaluer, sans parti-pris et de façon méthodique, claire et objective, les informations d’ordre scientifique, technique et socio-économique qui nous sont nécessaires pour mieux comprendre les risques liés au changement climatique d’origine humaine, cerner plus précisément les conséquences possibles de ce changement et envisager d’éventuelles stratégies d’adaptation et d’atténuation. IPCC - Intergovernmental Panel on Climate Change. - Prometheus: Chris Landsea Leaves IPCC Archives. After some prolonged deliberation, I have decided to withdraw from participating in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC).

- Prometheus: Chris Landsea Leaves IPCC Archives

I am withdrawing because I have come to view the part of the IPCC to which my expertise is relevant as having become politicized. In addition, when I have raised my concerns to the IPCC leadership, their response was simply to dismiss my concerns. With this open letter to the community, I wish to explain the basis for my decision and bring awareness to what I view as a problem in the IPCC process.

The IPCC is a group of climate researchers from around the world that every few years summarize how climate is changing and how it may be altered in the future due to manmade global warming. I had served both as an author for the Observations chapter and a Reviewer for the 2nd Assessment Report in 1995 and the 3rd Assessment Report in 2001, primarily on the topic of tropical cyclones (hurricanes and typhoons). Best, Subcomittee of Japan’s Society of Energy and Resources disses th.

Japan’s boffins: Global warming isn’t man-made Climate science is ‘ancient astrology’, claims report By Andrew Orlowski The Register UK (h/t) from WUWT reader Ric Werme UPDATE: One of the panelists (Dr.

Subcomittee of Japan’s Society of Energy and Resources disses th

Itoh) weighs in here at WUWT, see below. Exclusive Japanese scientists have made a dramatic break with the UN and Western-backed hypothesis of climate change in a new report from its Energy Commission. Three of the five researchers disagree with the UN’s IPCC view that recent warming is primarily the consequence of man-made industrial emissions of greenhouse gases. One of the five contributors compares computer climate modelling to ancient astrology. The report by Japan Society of Energy and Resources (JSER) is astonishing rebuke to international pressure, and a vote of confidence in Japan’s native marine and astronomical research. JSER is the academic society representing scientists from the energy and resource fields, and acts as a government advisory panel. Summary. RealClimate. World Climate Report » Antarctica Again - Mozilla Firefox.

We have reported on many occasions about the climate history of Antarctica, basically concluding that the frozen continent was not warming up during the most recent couple of decades, despite expectations that it should have been.

World Climate Report » Antarctica Again - Mozilla Firefox

At first glance, a new paper by the University of Washington’s Eric Steig and colleagues, published in last week’s Nature magazine and featured as its cover story, may seem to challenge our understanding—at least that is how it was spun to the press (see here and here, for example). But a closer look at what the paper really says—as opposed to what is said about the paper—shows that there is not much in need of changing with the current understanding of Antarctica’s temperature history.

We’ll show you why. Figure 1. Temperature history of East Antarctica (top) and West Antarctica (bottom), 1957-2006 as derived according to the methodology of Steig et al. (2009) (figure source: Steig et al, 2009). Figure 1b. Figure 2. Figure 3. This is hardly news. Official An Inconvenient Truth: Global Warming Effect, Al Gore M. Climate change. Climate Progress.