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Specialist Advice and literature review to support the Ad Hoc
Specialist Advice and literature review to support the Ad Hoc

... The contribution that biodiversity can make to societal adaptation will differ according to the circumstances, and in many cases technological solutions will be required. Analysis of the costs and benefits of adaptation options is uneven, and further research is required in this area. However, avail ...
Upper limit for sea level projections by 2100
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... rise by 2100 is to quantify the uncertainty beyond the likely range of sea level projections. The lack of robust simulations of the ice sheet contribution to global sea level rise from process based models led to only a likely range (66%) and with medium confidence being given for sea level projectio ...
Climate Change and Displacement for Indigenous Communities in
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... they are not exclusively an Arctic people, with their ranges extending as far south as approximately 62°N along the Norway-Sweden border. As rough estimates, approximately 900,000 people inhabit Arctic Scandinavia of whom perhaps 50,000-90,000 are Saami. Saami are frequently associated with reindeer ...
Canada`s Marine Coasts in a Changing Climate – Chapter 5
Canada`s Marine Coasts in a Changing Climate – Chapter 5

... The environment and socio-economic characteristics of the northern coast are unique. Inhabited primarily by Indigenous populations living in small remote communities, Canada’s northern coastline is vast, representing more than 70% of all Canadian coasts. The presence of sea ice is a defining feature ...
Oil Sands and Climate Change
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... attention understates both the slow and limited deployment of CCS and the significant challenges in applying this technology to the oilsands sector. To date there are no operating CCS projects in the oilsands. One planned integrated project, Shell’s Quest project, will capture 35% of the emissions f ...
3 The role of biodiversity in societal adaptation to climate change
3 The role of biodiversity in societal adaptation to climate change

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... today’s overlapping and interpenetrating "world news ecology"4 and with what further global(izing) (Harvey, 2003, p. 141). Manuel Castells’ magnum opus on the "network society" and the new "space of flows" (Castells, 1996) theorizes how informational capitalism produces a "fourth world" of social ex ...
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Australia`s 21 Century Carbon Budget
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... be emitted by human sources in a country over a given period. The notion of long-term national carbon budgets (i.e. over more than 50 years) has been the subject of considerable research and debate overseas, including by the United Kingdom’s Tyndall Centre on Climate Change Research.2 A recent artic ...
Final Report
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... In its White Paper on Adaptation to Climate Change the European Commission names the Alps as one of the areas in Europe most vulnerable to climate change impacts (Commission of the European communities, 2009: 4). Further, Alpine tourism is mentioned as one of the sectors most likely to be affected b ...
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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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