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Rapid decline of the CO2 buffering capacity in the North Sea and
Rapid decline of the CO2 buffering capacity in the North Sea and

... from the atmosphere into the Atlantic Ocean by the North Sea’s continental shelf pump. The increase of the mean DICnorm in the southern region can be ascribed to a DIC increase of the waters imported from the Atlantic Ocean because of anthropogenic CO2 uptake and constitutes one mechanism for the ri ...
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PDF

... It is important to recognize that farmers can increase benefits or mitigate losses from climate change through adaptations: they can adjust input use and management practices in the short term, e.g., planting date, irrigation water application rate, seed varieties, and coverage of crop insurance; th ...
Climate Change and US National Security
Climate Change and US National Security

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Climate Change Impacts on International Seaports
Climate Change Impacts on International Seaports

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Agricultural activities and the global carbon cycle
Agricultural activities and the global carbon cycle

... Therefore, the soil C pool estimated at 2300 Pg to 1-m depth 共SOC ⫽ 1550 Pg and SIC ⫽ 750 Pg兲 is 4.1 times the biotic pool and 3.0 times the atmospheric pool. The atmospheric pool is increasing at the expense of the geologic, pedologic and the biotic pools. The soil and biotic pools combined are ref ...
Agriculture and Forestry Provisions in Climate Legislation in the 111 Congress
Agriculture and Forestry Provisions in Climate Legislation in the 111 Congress

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China`s Policies and Actions for Addressing Climate Change
China`s Policies and Actions for Addressing Climate Change

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... As the nations of the world consider alternative international climate policy architectures for the post-2012 period, tradable permit systems are emerging as a preferred domestic instrument for reducing greenhouse gas (GHG) emissions. The two most significant institutions for reducing GHG emissions ...
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The Nation Ex-Situ: On climate change, deterritorialized nationhood
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... focus. Impacts of climate change may exacerbate pre-existing vulnerabilities typical of nationstates of similar size and stage of development. For certain states, however, climate change and associated sea-level rise threaten the very survival of their entire territory. This consequence, particularl ...
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... northern hemisphere land areas and at high latitudes (Albritton et al., 2001; Giorgi, 2005). In addition, numerous studies have shown that the most recent observations of changes in surface and free-atmosphere temperatures cannot be explained by (modelestimated) natural climate variability alone (He ...
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Policy Tools for Local Adaptation to Sea Level Rise

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... fmdings have been the basis for international negotiations (IPCC n.d.). On September 2ih, 2013, the IPCC released the first part of its Fifth Assessment Report noting, "It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-201h century" (IPCC 2 ...
physical risks from climate change
physical risks from climate change

... events are becoming more frequent and intense, that incremental climatic changes are already underway, and that the impacts of climate change are expected to grow more severe over the coming years and decades. The year 2011 set records for economic losses and insured losses caused by natural catastr ...
Physical Risks from Climate Change: A guide
Physical Risks from Climate Change: A guide

... events are becoming more frequent and intense, that incremental climatic changes are already underway, and that the impacts of climate change are expected to grow more severe over the coming years and decades. The year 2011 set records for economic losses and insured losses caused by natural catastr ...
Climate Extremes Communications Guidebook
Climate Extremes Communications Guidebook

... It is important to understand the basic description of commonly used terminology in climate science, including the terms “weather”, “climate”, and “climate extremes”. The World Meteorological Organization states that “on the simplest level, the weather is what is happening in the atmosphere at any g ...
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Climate change feedback



Climate change feedback is important in the understanding of global warming because feedback processes may amplify or diminish the effect of each climate forcing, and so play an important part in determining the climate sensitivity and future climate state. Feedback in general is the process in which changing one quantity changes a second quantity, and the change in the second quantity in turn changes the first. Positive feedback amplifies the change in the first quantity while negative feedback reduces it.The term ""forcing"" means a change which may ""push"" the climate system in the direction of warming or cooling. An example of a climate forcing is increased atmospheric concentrations of greenhouse gases. By definition, forcings are external to the climate system while feedbacks are internal; in essence, feedbacks represent the internal processes of the system. Some feedbacks may act in relative isolation to the rest of the climate system; others may be tightly coupled; hence it may be difficult to tell just how much a particular process contributes. Forcings, feedbacks and the dynamics of the climate system determine how much and how fast the climate changes. The main positive feedback in global warming is the tendency of warming to increase the amount of water vapor in the atmosphere, which in turn leads to further warming. The main negative feedback comes from the Stefan–Boltzmann law, the amount of heat radiated from the Earth into space changes with the fourth power of the temperature of Earth's surface and atmosphere.Some observed and potential effects of global warming are positive feedbacks, which contribute directly to further global warming. The Intergovernmental Panel on Climate Change's (IPCC) Fourth Assessment Report states that ""Anthropogenic warming could lead to some effects that are abrupt or irreversible, depending upon the rate and magnitude of the climate change.""
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