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Three Key Elements of Post-2012 International Climate Policy
Three Key Elements of Post-2012 International Climate Policy

... Finally, Jing Cao (2010) presents the perspective of China, the most important of the emerging economies, by examining an approach which seeks to reconcile fairness, economic development imperatives, and sensible climate policy actions. She takes as her starting point the Copenhagen Accord, the majo ...
Catalonia strives for climate agreement in Copenhagen
Catalonia strives for climate agreement in Copenhagen

...  The Office for Climate Change is currently analysing the application of the Framework Plan in the first two years, 2008 and 2009, for the Interdepartmental Commission to assess it for the Government. It will be presented at the Catalan Climate Change Convention.  The initial figures show that mor ...
The social construct of climate and climate change
The social construct of climate and climate change

... between the 2 forms of inference often are highlighted and lead to the conclusion that a generally 'true' definition of risks and threats is at best a dubious undertaking (e.g. Rayner & Cantor 1987). In general, however, research into risk communication, the public perception of social problems and ...
CB-48 - Climate Science: Roger Pielke Sr.
CB-48 - Climate Science: Roger Pielke Sr.

... Circulating fluids, such as the atmosphere and oceans, communicate information over large parts their volume and these teleconnections can be defined to occur in two ways. First, the atmosphere and oceans organize themselves into coherent circulations on a variety of time and spatial scales. These i ...
Document
Document

...  Chicago Climate Exchange® (CCX® ) is a voluntary, legally binding pilot greenhouse gas reduction & trading program for emission sources and offset projects in North America and offset projects in Brazil  CCX® is the world's first multi-national and multi-sector market for reducing and trading gre ...
Item 9 - Climate Change and Planning for Unpredictable Weather
Item 9 - Climate Change and Planning for Unpredictable Weather

... Wetter Winters: 15 per cent to 33 per cent wetter than the baseline average. Sea level rise: Sea levels are projected to rise by up to 96cms by the end of the century. ...
Seasonal hydrologic responses to climate change in the Pacific
Seasonal hydrologic responses to climate change in the Pacific

... We performed a set of control experiments using the Variable Infiltration Capacity (VIC) macroscale landsurface hydrology model [Liang et al., 1994]. We used VIC version 4.0.7 calibrated and validated as in Hamlet et al. [2010, chapter 5]. This implementation has a higher spatial resolution (1/16 ve ...
Water: The Potential Consequences of Climate Variability and
Water: The Potential Consequences of Climate Variability and

... temperatures, flows, runoff rates and timing, and the ability of watersheds to assimilate wastes and pollutants. Global and regional increases in air temperature, and the associated increases in water temperature, are likely to lead to adverse changes in water quality, even in the absence of changes ...
Taking a risk on the weather
Taking a risk on the weather

... change on the sector will depend on uncertain factors, such as the physical changes in risk, the response of governments and regulators, the behaviour of insurers and those insured and the strength of global climate change policies. While many are outside the control of the industry, others are at l ...
Slide 1 - University of Washington
Slide 1 - University of Washington

... •Optimized flood control operations to rebalance complex multiobjective reservoir systems •Incorporate more realistic effects to extreme precipitation from regional scale climate models (in progress) •Incorporate the effects of sea level rise and high flows on inundation using hydrodynamic modeling ...
Human impact and climate changes—synchronous events and a
Human impact and climate changes—synchronous events and a

... described as one of the main environmental factors behind a step-wise development of the cultural landscape in Northwest Europe. Seven periods of human impact changes—5900, 5500, 4500, 3800, 3000–2800, 1500 and 1100 cal: BP—are defined and compared with reconstructed climatic scenarios, based on inso ...
How are extreme temperatures changing in Sweden
How are extreme temperatures changing in Sweden

... changes in global mean temperatures. There will always be the possibility that during a change in the global mean temperature to the warmer, some regions will experience a cooling trend that will lower the mean temperature and result in milder warm extremes and colder cold extremes. As an example of ...
Climate Leadership in Africa -
Climate Leadership in Africa -

... decade, and there is ongoing political and military unrest in Guinea-Bissau. In 1975, the economic and political union of ECOWAS was founded, with the aim of developing common policies and programmes between the member states, and better representing the region on the international stage. Political ...
A New Water Paradigm for Urban Areas to Mitigate the Urban Heat
A New Water Paradigm for Urban Areas to Mitigate the Urban Heat

... The conventional principle of water discharge, which was implemented for over a hundred years, nowadays bears disastrous environmental effects on surface water quality and on the climate. The paradigm shift, which must now be implemented on the local level, will require a complete rethinking of the ...
Environmental prices, uncertainty and learning
Environmental prices, uncertainty and learning

... approach based on modelling the marginal benefits (or symmetrically the social costs) of environmental protection, to an approach based on modelling the marginal costs of protection, and now increasingly into an approach that uses the revealed costs of policy, where they can be demonstrated to be ap ...
Chapter 3: Climate observations and projections
Chapter 3: Climate observations and projections

... that lead to GHG emissions and atmospheric concentration trajectories. These GHG profiles are then used as input drivers in climate model simulations. Three GHG emissions scenarios that were used as drivers for many GCMs and available from the World Climate Research Program (WCRP) and the Program fo ...
Classifying Pacific islands Pacific Ecosystem
Classifying Pacific islands Pacific Ecosystem

... PCCR 2013: Climate Change in Roviana Lagoon, Solomon Islands: How we can make the environment and people ready PACC Technical Report No. 13 - PACC Demonstration Guide: ‘Climate Proofing’ Coastal Development on Mangaia Island, Cook Islands Bonriki Inundation Vulnerability Assessment - Oceanographic D ...
Climate Change, the Oceans, and the Business of Seafood: A View
Climate Change, the Oceans, and the Business of Seafood: A View

... I. CHANGING SEAS ...
CESD - The University of Edinburgh
CESD - The University of Edinburgh

... • Parameterisations. – Act on columns so each column can be treated independently. – Key for climate ...
Climate change impacts in Greece in the near future
Climate change impacts in Greece in the near future

... Changes in the number of summer-like days per year have also been examined. A summer day is defined as a day with maximum temperature (Tmax) above 25oC. Changes in this parameter might consist a positive impact of climate change in tourist areas, since an increase may lead to a lengthening of the to ...
350.ORG - Earthjustice
350.ORG - Earthjustice

... Trends in extreme temperature across the South Pacific from 1961 to 2003 show increases in the annual number of hot days and warm nights, particularly following ENSO events.27 Increased heat events around the world are linked to increased cardiovascular mortality, respiratory illnesses, malnutrition ...
Balanced Approach
Balanced Approach

... Catastrophe is unlikely for at least coming 100 years (no threshold during this period) • It is very unlikely that the MOC will undergo a large abrupt transition during the 21st century. (AR4 WG1 SPM p. 16) • The Greenland and Antarctic Ice Sheets contain much more ice and could make large contribut ...
Future Climate in the Yellowstone National Park Region and Its
Future Climate in the Yellowstone National Park Region and Its

... taxa (Overpeck et al. 1991; Huntley et al. 1995). Relationships between present distributions of tree taxa and climate were established on a 25-km grid covering North America by interpolating present climate and by digitizing species range maps from Little (1971) onto the grid. We used “response sur ...
Systems Engineering Office for CEOS Constellations
Systems Engineering Office for CEOS Constellations

... global levels. Health: Understanding environmental factors affecting human health and well-being Health issues with Earth-observation needs include: airborne, marine, and water pollution; stratospheric ozone depletion; persistent organic pollutants; nutrition; and monitoring weatherrelated disease v ...
Slide 1
Slide 1

... CO2 concentrations in 2095 are 23 ppm lower than the reference scenario. • If the U.S. does not cap emissions, and all other countries take on the targets from the Senate scenario, then CO2 concentrations in 2095 are 25 ppm higher than the Senate scenario. • The larger incremental effect when the U. ...
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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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