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Introductory e-Course on Climate Change
Introductory e-Course on Climate Change

... time” and in many countries the impacts of it are already felt. At the same time, it is still very difficult for many people not working directly on the subject to understand the basics of climate change. For example, which gases are actually contributing to the greenhouse gas effect? What temperatu ...
Surveying the impact. The day after tomorrow
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... toward global warming. Some commentators feared that the catastrophic plotline of The Day After Tomorrow would be so extreme that the public would subsequently dismiss the entire issue of global warming as fantasy. At the other end of the spectrum, others spun a scenario in which, panicked by the mo ...
Adapting to our changing climate
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... greenhouse gases in the atmosphere which, in turn, result in more heat being trapped in the Earth’s atmosphere. Global concentrations of carbon dioxide and methane in the atmosphere have been rapidly growing over the past century and are now higher than at any time in the last 800,000 years. There i ...
Impact upon the Indian socio-economic fronts by climate change
Impact upon the Indian socio-economic fronts by climate change

... minimum temperature is appreciably higher than that of maximum temperature over northern plains. This may be due to pollution leading to frequent occurrences of fog. Upper air temperatures have shown an increasing trend in the lower troposphere, and this trend is significant at 850 hPa level, while ...
Agricultural research tackling climate change in
Agricultural research tackling climate change in

... •  IdenKfying  knowledge  gaps  and  opportuniKes  for  research   collaboraKon  between  grasslands  systems  and  rangelands  systems   ...
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Aalborg Universitet Nielsen, Jørgen
Aalborg Universitet Nielsen, Jørgen

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Southern California Regional Adaptation Efforts to Climate Change
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... Yann-Arthus Bertrand Photo Exhibition on Climate Change On April 22, 2015, an exhibition by famous documentary maker / photographer, especially focusing on environmental issues, Yann-Arthus Bertrand, will be organized as part of the Young Scholars Workshop titled “Beyond Special Circumstances: Turke ...
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Scientific opinion on climate change



The scientific opinion on climate change is the overall judgment amongst scientists about whether global warming is happening, and if so, its causes and probable consequences. This scientific opinion is expressed in synthesis reports, by scientific bodies of national or international standing, and by surveys of opinion among climate scientists. Individual scientists, universities, and laboratories contribute to the overall scientific opinion via their peer-reviewed publications, and the areas of collective agreement and relative certainty are summarised in these high level reports and surveys.The scientific consensus is that the Earth's climate system is unequivocally warming, and that it is extremely likely (at least 95% probability) that humans are causing most of it through activities that increase concentrations of greenhouse gases in the atmosphere, such as deforestation and burning fossil fuels. In addition, it is likely that some potential further greenhouse gas warming has been offset by increased aerosols.National and international science academies and scientific societies have assessed current scientific opinion on global warming. These assessments are generally consistent with the conclusions of the Intergovernmental Panel on Climate Change, the IPCC Fourth Assessment Report summarized:Warming of the climate system is unequivocal, as evidenced by increases in global average air and ocean temperatures, the widespread melting of snow and ice, and rising global average sea level.Most of the global warming since the mid-20th century is very likely due to human activities.Benefits and costs of climate change for [human] society will vary widely by location and scale. Some of the effects in temperate and polar regions will be positive and others elsewhere will be negative. Overall, net effects are more likely to be strongly negative with larger or more rapid warming.The range of published evidence indicates that the net damage costs of climate change are likely to be significant and to increase over time.The resilience of many ecosystems is likely to be exceeded this century by an unprecedented combination of climate change, associated disturbances (e.g. flooding, drought, wildfire, insects, ocean acidification) and other global change drivers (e.g. land-use change, pollution, fragmentation of natural systems, over-exploitation of resources).Some scientific bodies have recommended specific policies to governments and science can play a role in informing an effective response to climate change, however, policy decisions may require value judgements and so are not included in the scientific opinion.No scientific body of national or international standing maintains a formal opinion dissenting from any of these main points. The last national or international scientific body to drop dissent was the American Association of Petroleum Geologists, which in 2007 updated its statement to its current non-committal position. Some other organizations, primarily those focusing on geology, also hold non-committal positions.
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