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Syria Country Report
Syria Country Report

DISCUSSION PAPER Climate Policy in the United States
DISCUSSION PAPER Climate Policy in the United States

... international markets. (Similar concerns over overseas offsets under the McCain–Lieberman bill led to a 15% cap on offset credits in that proposal.) On the plus side, it was noted that international trading by states could build more momentum for a federal program. Finally, a question was raised abo ...
Achieving Sustainable Food Security in the Face of Climate Change
Achieving Sustainable Food Security in the Face of Climate Change

... Wabbes, 2012). To mitigate this and to help in climate change adaptation, they stress the importance of the four pillars of the Disaster Risk Reduction for Food and Nutrition Security Framework Program, to continue investments and improvements in already existing programs and for further research an ...
Mayors Adapt - EN Political Commitment
Mayors Adapt - EN Political Commitment

... the various impacts of climate change – such as extreme weather events, like heat waves, storms, floods and droughts, as well as longer term changes, like economic losses and public health problems – although emission reduction efforts are already underway. Local authorities are key drivers in the i ...
Day 1 - UNEP
Day 1 - UNEP

... Limits to Growth > Green Economy • Green Economy – Value of environmental investments to economic growth, decent jobs creation, and poverty reduction. – Encourage policy makers to reflect it in their investment and economic policy decisions. – ILO/UNEP report “Green jobs: Towards decent work in a s ...
Changes in Surface Water Supply Across Africa with Predicted
Changes in Surface Water Supply Across Africa with Predicted

... Second, most of East Africa is also in the intermediate range, as are large sections of the upper Nile. With our model we now attempt a prediction of the perennial water supply across Africa by the end of this century. That the human impact is a major driving force behind the climate changes in the ...
Harley b/l - CalCOFI.org
Harley b/l - CalCOFI.org

... oscillations such as El Niño Southern Oscillation events (Jones et al. 2001). These oscillations provide natural “experiments” that can serve as proxies for studying the impacts of long-term, nonoscillatory trends such as those predicted by anthropogenic warming scenarios (IPCC 2001). Long-term chan ...
Impacts of Chinese reactive nitrogen on climate change
Impacts of Chinese reactive nitrogen on climate change

... E6: Ozone formed in the troposphere as a result of NOx emissions can damage plant productivity and further decrease CO2 uptake by the vegetation. ...
IV. Round Table 3: Land-based approach to climate change
IV. Round Table 3: Land-based approach to climate change

... were noted across up to two-thirds of the continental United States and Australia. Persistent, frequent and severe droughts are having an especially harsh impact across the Middle East and North Africa region where per capita renewable water resources are four times lower than they were in this regi ...
What is the Paris Agreement, and How Will It Be Implemented?
What is the Paris Agreement, and How Will It Be Implemented?

... of signaling countries and industries to invest in green energy. (“The Paris Agreement”). All of these goals build off of the United Nations Framework Convention on Climate Change – which is often referred to as the UNFCCC or the Convention – because it was under the Convention’s climate framework t ...
Puerto Rico`s State of the Climate EXECUTIVE SUMMARY
Puerto Rico`s State of the Climate EXECUTIVE SUMMARY

... past, and whether humans and nature will adapt to appropriately to the changes. Furthermore, the cause of this climatic change is linked to human actions; the burning of fossil fuels for energy which releases heat-trapping gasses into the atmosphere. These emissions have led to a rapid warming of th ...
Cooperation in International Environmental Treaties 1
Cooperation in International Environmental Treaties 1

... chemist Svante Arrehenius first described the greenhouse gas effect that traps the Sun’s rays in carbon dioxide and other gases, leading to an increase in global temperature. However, the contributions that human society made to this effect have only recently been discovered. In 1995, the Intergover ...
Chapter 4: Climate change
Chapter 4: Climate change

... and interior North America with shallow seas. The southerly location of Africa, India, and Australia precluded development of a circumpolar Antarctic current. Instead, open passageways between North and South America and Eurasia and Africa led to the development of a shallow equatorial seaway known ...
Multicentury Changes to the Global Climate and Carbon Cycle
Multicentury Changes to the Global Climate and Carbon Cycle

... modeling study are complimentary to the results from the work by Govindasamy et al. (2005), notably the increase in carbon–climate feedback with climate sensitivity, and persistence of the terrestrial carbon sink over the twenty-first century. In their model, the positive feedback between the carbon ...
Oregon`s Biodiversity in a Changing Climate
Oregon`s Biodiversity in a Changing Climate

... (Beebee 1995, Gibbs and Breisch 2001b). In general, over the last decade, spring events have been occurring earlier at an average rate of 2.3 days per decade (Parmesan and Yohe 2003). These changes in phenology are likely to lead to mismatches in the timing of interdependent ecological events with l ...
The PETM and Leaf Margin Analysis
The PETM and Leaf Margin Analysis

...  Do we know that Leaf Margin Analysis 100% works… no.  We do have other evidence to support the data concluded from leaf margin analysis from other sources. ...
The EU and Strategies for New Climate Treaty Negotiations
The EU and Strategies for New Climate Treaty Negotiations

... being primarily the promoter as well as the defender of the Kyoto Protocol. The participation of the United States, at the COP 15-16, could be seen as an attempt to regain the leadership, but it remains to be seen how the future negotiations will develop and how the United States or the EU will lead ...
View/Open - University College Cork
View/Open - University College Cork

... Variables (ECVs), which are considered as the minimum set of key variables needed to describe the Earth’s climate system on a global scale. A large number of research and operational systems provide important contributions to observe those variables. These observations may be ground-based, airborne ...
High Mountain Glacial Watershed Program Newsletter #3 Fall 2012
High Mountain Glacial Watershed Program Newsletter #3 Fall 2012

... significant component of the High Mountain Glacial Watershed Program (HMGWP) is our consultation work with local communities. These consultations provide fascinating insights about the perceptions that high mountain people have regarding climate change and its impacts on their day-to-day life. These ...
W How to Take A R T I C L E S
W How to Take A R T I C L E S

... and global sea level has risen in a manner consistent with ocean expansion due to warming, as well as the global melting of alpine glaciers. The warming atmosphere is now holding more water vapor, sea ice retreat in the Arctic has been unprecedented, and even the large polar ice sheets are now losin ...
Global warming induced hybrid rainy seasons in the Sahel
Global warming induced hybrid rainy seasons in the Sahel

... planting and during the flowering phase of rain-fed crops are the key hazards that determine the failure of rain-fed farming systems [6, 13, 14]. The soil moisture deficits added to low soil fertility, high temperatures and evaporation rates increase the rate of agroclimatic risks inherent to seasonal ...
Architecture, Energy and Climate - Nordic Journal of Architectural
Architecture, Energy and Climate - Nordic Journal of Architectural

... These form the basis for evaluating the future thermal comfort performance of such buildings. The scenarios have been derived from climate model runs at the Hadley Centre. The Hadley Centre's Regional Climate Model (HadCM3 RMC) has been run and dynamically downscaled for one of the four global emiss ...
Solution Aversion: On the Relation Between Ideology and Motivated
Solution Aversion: On the Relation Between Ideology and Motivated

... largely responsible for climate change (and humankind is also the cause of other environment risks, such as lung damage; State of the Air, 2013). However, there is a near political party-line divide over the veracity of many of the same issues. In the United States, Democrats (liberals) tend to agre ...
the bali action plan: key issues in the climate negotiations
the bali action plan: key issues in the climate negotiations

... Plan negotiations under the UNFCCC (also referred to as the Convention), negotiations are also underway under the Kyoto Protocol. Provisions of the Kyoto Protocol also address the key issues being discussed under the Bali Action Plan and there are many linkages between the two processes. For example ...
Climate change mitigation related to Tanzanian forests Key factors
Climate change mitigation related to Tanzanian forests Key factors

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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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