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IPRC News
IPRC News

... The School of Ocean and Earth Science and Technology (SOEST) at UH Mānoa opened its doors October 21-22 to the public. Over 6000 public and private school students, children, parents, and other interested people came to the two-day event to learn about earth science. IPRC scientists put on several e ...
Atmospheric Concentrations of Greenhouse Gases
Atmospheric Concentrations of Greenhouse Gases

... effect of ozone-depleting substances. These chemicals have been released into the air for many years, but recently, international efforts have reduced emissions and phased out their use. ...
The response of atmospheric nitrous oxide to climate variations
The response of atmospheric nitrous oxide to climate variations

... Heinrich stadials are followed by bundles of DO events (with similar stadial but varying interstadial temperatures), which finally terminate in another Heinrich stadial. As during each bundle of DO events N2 O concentrations reach remarkably low values during the Heinrich stadials, the Heinrich event ...
Supplementary Materials
Supplementary Materials

... HadCM3 (Hadley Centre, United Kingdom), and for two different IPCC (Intergovernmental Panel on Climate Change) response scenarios (A and B). Percent forest cover, derived from forest change maps (Harper et al.2007) was included as a continuous variable, and was assumed to remain constant between cur ...
Ch15Pres - Leornian.org
Ch15Pres - Leornian.org

...  The consensus of scientific opinion is that the present global warming trend is largely anthropogenic in origin – Human activity, principally the combustion of fossil fuels, is responsible for the build-up of carbon dioxide and other infrared-absorbing gases in the atmosphere – The amount of anthr ...
Climate Variability and Predictability Program Jim Todd Program Manager, CVP
Climate Variability and Predictability Program Jim Todd Program Manager, CVP

... •Data Distribution capability ...
Comments on “A Unified
Comments on “A Unified

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Link to PDF-file
Link to PDF-file

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5 Determinants of Crop Growth and Yield in a Changing Climate
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PowerPoint Presentation - Community Earth System Model
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Center for Biological Diversity v. County of San Bernardino
Center for Biological Diversity v. County of San Bernardino

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UNDP-GEF Adaptation
UNDP-GEF Adaptation

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Research for Action: Climate - NSW Department of Primary Industries
Research for Action: Climate - NSW Department of Primary Industries

... greenhouse gases in the atmosphere, leading to an enhanced greenhouse effect. The greenhouse gas contributing most to the enhanced greenhouse effect is carbon dioxide (CO2). Fossil fuel combustion for electricity and transport and from deforestation has increased CO2 concentration in the atmosphere ...
Climate Change and Individual Behavior
Climate Change and Individual Behavior

... disconnect between perceptions and actions? Concern about climate change does not necessarily mean understanding of its drivers and dynamics, nor of the responses needed. Polls show that the public admits to remaining confused over climate change’s causes and solutions.6 This “green gap” in public ...
a long-term climate goal implies a limit on cumulative co 2 emissions
a long-term climate goal implies a limit on cumulative co 2 emissions

... individuals, most-likely versus possible extreme scenarios, and different categories of impacts. The Reasons for Concern are associated with (1) unique and threatened systems, such as coral-reef ecosystems and the societies dependent on them; (2) extreme weather events, such as heat waves and coast ...
Atmospheric science: Extreme La Niña events to increase
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... Figure 1 | Illustration of extreme La Niña conditions. a, Average sea surface temperature conditions during boreal winter (December–February) from 50 years of observations. Colouration indicates sea surface temperature, at increments of 1 °C. Surface winds (arrow) blow from east to west, causing sur ...
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International Institutional Responses to Climate Change in a Post

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SESSION 6: Engineering and Infrastructure 2
SESSION 6: Engineering and Infrastructure 2

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1.5-SG Climate change and REDD overview

... investments in clean energy and sustainable landscapes for climate change mitigation; 2.Increase resilience of people, places, and livelihoods through investments in climate change adaptation; and 3.Strengthen development outcomes by integrating climate change in USAID programming, learning, policy ...
Heating the Atmosphere
Heating the Atmosphere

... Convection is also important in the oceans and within the Earth’s mantle, which is solid but behaves like a liquid over long periods of time. ...


... a side. However, because of high spatial variability, we:atherand climate information is most useful when it represents relatively small areas. Techniques have belen developed over time designed to take in1:ormation from large model grids and apply it to sil1lglepoints within the grid domain. For ex ...
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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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