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CO2 Targets
CO2 Targets

... would have a very significant impact on the economy, increasing joblessness, and extending needlessly the hardship on the Australian people. Even a 5% reduction target would cost of the order of 70 Billion dollars per annum and achieve almost no impact on world CO2 inventory. This tax was also enorm ...
Slide 1
Slide 1

... McGranahan et al (2007) identified the Low Elevation Coastal Zone (LECZ) as the contiguous area along the coast that is less than 10 metres above sea level. This zone covers 2 per cent of the world's land area and contains 10 per cent of the world's total population and 13 per cent of the world's ur ...
Soil carbon monitoring using surveys and modelling
Soil carbon monitoring using surveys and modelling

... from the REDD mechanism, countries need to be capable of reporting their forest carbon stocks and changes in these stocks over time. One of the most important forest carbon stocks is forest soil. At the global level, the estimates of forest soil carbon stock vary from equal to twice that of forest v ...
the cop in action - Ministère de l`Environnement, de l`Énergie et de la
the cop in action - Ministère de l`Environnement, de l`Énergie et de la

... égolène Royal is committed to the IPCC devoting a special report Ocean and Climate. This initia­ tive supported by France, China, Monaco and Spain was adopted at the 43rd plenary session of the IPCC in Nairobi from 11 to 13 April 2016 with the goal of approving and publishing it in 2019. Its theme w ...
Full-Text PDF
Full-Text PDF

... future climate change. Ramming et al. (2010) [9] even argue that human induced climate changes may induce increased biomass in the Amazon forest that is due to the CO2 fertilization effect. As discussed by [5,6,10–16], assessing the seasonal and spatial variation of thermodynamic fluxes is mandatory ...
1996. Because most of the increase in radia-
1996. Because most of the increase in radia-

... the impact of anthropogenic forcing in today’s climate system have used air-temperature observations as the data set of choice for the detection study (1). These studies most often use near-surface air temperature [e.g., (2–6)]. Changes in sea ice (7) and the vertical temperature structure of the at ...
EU action against climate change - Leading global action to 2020
EU action against climate change - Leading global action to 2020

... according to the 2007 Fourth Assessment Report (AR4) from the Intergovernmental Panel on Climate Change (IPCC). Sea levels rose almost twice as fast between 1993 and 2003 as during the previous three decades. Man-made emissions of greenhouse gases are causing these changes. Without action to limit f ...
Integrating Climate and hazard mitigation planning (Powerpoint)
Integrating Climate and hazard mitigation planning (Powerpoint)

... Climate adaptation strategies, which are adjustments in natural or human systems to mitigate the impacts of a changing climate, may complement other hazard mitigation strategies ...
Guidebook 2 Vfinal.1.FH11 - Centre for Indigenous Environmental
Guidebook 2 Vfinal.1.FH11 - Centre for Indigenous Environmental

... which is causing the Earth’s temperature to increase faster than science has observed in the Earth’s history. Elders and others that live on the land are also seeing changes like the length of the winter season and the shortening of extreme cold snaps in winter. It is normal for the climate to chang ...
Environmental Security: A Case Study of Climate
Environmental Security: A Case Study of Climate

... are self-generated: we perpetrate them on ourselves, by fouling our air and water, and overharvesting our land. These threats are not felt equally around the world. Southern countries face severe problems from desertification, while northern industrial countries deal with acid rain, and polar region ...
A comment on “Economy-wide estimates of the
A comment on “Economy-wide estimates of the

... floods, more heat waves, more powerful storms (IPCC, 2001). According to one study, recent climate change has made extreme heat waves two to four times more likely, and over the next 40 years, these extreme heat events will become 100 times more likely (Epstein and Mills, 2005). With moderate change ...
1072-9240/00 $2000 +  .00 Technology, Vol.  7S, pp. 189-213,2000
1072-9240/00 $2000 + .00 Technology, Vol. 7S, pp. 189-213,2000

... 3. The penetration of any existing technology would expand only to the extent necessary to ensure that assumptions 1) and 2) are realized. This implies that, at a minimum, inputs would probably increase in proportion to the amount of total cropland. 4. Average global food supplies per capita would b ...
I was interested to gauge what the Environmental NGO community... recent release of the IPCC AR5 Exec Summary and in... IEAGHG Information Paper 2014-21: NGO and Media response to IPCC...
I was interested to gauge what the Environmental NGO community... recent release of the IPCC AR5 Exec Summary and in... IEAGHG Information Paper 2014-21: NGO and Media response to IPCC...

... Business’ Times as UN Climate Report 2014: the End of the IPCC? The main focus of this article is the time and effort it takes to produce these report and there is a suggestion that the IPCC should consider shorter, more focused reports on issues that are advancing rapidly. This line of thought has ...
Role of Ocean in Global Warming - J
Role of Ocean in Global Warming - J

... the downward penetration of heat below the mixed layer was expressed as vertical diffusion. In the actual ocean, however, heat is transported downward not only by small scale eddies and convection but also by three-dimensional, large-scale circulation. This is why it is not appropriate to express oc ...
Principles of Justice in the Context of Global Climate Change
Principles of Justice in the Context of Global Climate Change

... states and is reduced in the FCCC to the provision: “The developed country Parties . . . shall also assist the developing country Parties that are particularly vulnerable to the adverse effects of climate change in meeting costs of adaptation to those adverse effects” (FCCC 1992, Article 4(4)). Perh ...
Global scale climate–crop yield relationships and the impacts of
Global scale climate–crop yield relationships and the impacts of

one way or another, everything changes
one way or another, everything changes

... happen incrementally. A given amount of emission will lead to a given amount of temperature increase that will lead to a given amount of smooth incremental sea level rise. However, the geological record for the climate reflects instances where a relatively small change in one element of climate led ...
Conveyor Belt Circulation
Conveyor Belt Circulation

... The “conveyor belt circulation” is a highly simplified conceptual model of a global ocean circulation system consisting of surface and deepwater currents connecting the world oceans that is driven by (and affects) patterns of water-temperatures and -salinities and the atmospheric circulation. As the ...
Project Name - World bank documents
Project Name - World bank documents

... The Global climate is changing rapidly. The 2001 Third Assessment Report of the Intergovernmental Panel for Climate Change (IPCC) concluded that, with the continuing emission of GHG (greenhouse gases), the mean surface temperature may increase between 1.5 and 5.8 degrees Celsius during the next 100 ...
Air Pollution, Climate Disruption, and Ozone Depletion
Air Pollution, Climate Disruption, and Ozone Depletion

... • Sulfur dioxide (SO2) is a colorless gas with an irritating odor. • About one third of the SO2 in the atmosphere comes from natural sources as part of the sulfur cycle. • Human sources include combustion of sulfur-containing coal in electric power and industrial plants and oil refining and smelting ...
Biospheric Changes Are Threat Multipliers
Biospheric Changes Are Threat Multipliers

...  Arctic ice melting is clearly not good for polar bears, but this biospheric change “could cost global agriculture, real estate and insurance anywhere from $2.4 trillion to $24 trillion by 2050 in damage from rising sea levels, floods and heat waves . . .”3  “Everybody around the world is going to ...
The Changing Himalayas - India Environment Portal
The Changing Himalayas - India Environment Portal

... and widespread effects on the availability of, and access to, water resources. By the 2050s, access to freshwater in Asia, particularly in large basins, is projected to decrease. ...
Humans Transforming the Global Water System
Humans Transforming the Global Water System

... aquatic ecosystems [Revenga et al., 2000]. Given that the vast majority of such changes have occurred over the last half-century, by any measure of global change, these are arguably among the most rapid and substantial. Understanding the global consequence of this diverse array of changes will requi ...
Financing Adaptation through the Global Environment Facility
Financing Adaptation through the Global Environment Facility

... urgent and concrete steps towards reducing absolute losses and vulnerability from negative effects of climate change (including variability).  The UNFCCC Secretariat defines adaptation as “practical steps that are vital to protect countries and communities from the likely disruption and damage that ...
Climate Local Wirral Council
Climate Local Wirral Council

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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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