1. Climate Change - Wikipedia, The Free Encyclopedia Retrieved from http//en.wikipedia.org/wiki/climate_change . Categories Climate change Ecology Climate change feedbacks and causes History of http://en.wikipedia.org/wiki/Climate_change

Climate change From Wikipedia, the free encyclopedia Jump to: navigation search Atmospheric sciences [cat.] ... [cat.] climate change [cat.] Portal Atmospheric Sciences Portal Weather Variations in CO , temperature and dust from the Vostok ice core over the last 450,000 years For current global climate change, see Global warming Climate change is any long-term significant change in the “average weather” that a given region experiences. Average weather may include average temperature, precipitation and wind patterns. It involves changes in the variability or average state of the atmosphere over durations ranging from decades to millions of years. These changes can be caused by dynamic process on Earth, external forces including variations in sunlight intensity, and more recently by human activities. In recent usage, especially in the context of environmental policy , the term "climate change" often refers to changes in modern climate (see global warming ). For information on temperature measurements over various periods, and the data sources available, see temperature record . For attribution of climate change over the past century, see

2. Climate Change Effects - Background- PICES Background. Climate change is the most important threat to the Earth. Even if we stabilize CO2 concentrations, the 2007 IPCC (Intergovernmental Panel on http://www.pices.int/meetings/international_symposia/2008_symposia/Climate_chang

Background Climate change is the most important threat to the Earth. Even if we stabilize CO concentrations, the 2007 IPCC (Intergovernmental Panel on Climate Change) Assessment confirms that warming will continue for decades and sea level will continue to rise for centuries. Some direct effects of climate change in the marine environment are already visible, but others need to be defined by enhanced observations, analysis and modelling. We have a rudimentary understanding of the sensitivity and adaptability of natural and managed ecosystems to climate change. An assessment of the consequences of climate change on the World's Oceans has a high scientific and social relevance and is urgently needed. Although we are beginning to document the local effects and consequences of climate change on the functioning of marine ecosystems, there is no comprehensive vision at the global scale, and only limited ability to forecast the effects of climate change. To close this gap, the Symposium will focus on the major issues of climate change that affect the oceans: oceanic circulation, climate modelling, cycling of carbon and other elements, acidification, oligotrophy, changes in species distributions and migratory routes, sea-level rise, coastal erosion, etc. The Symposium will bring together results from observations, analyses and model simulations, at a global scale, and will include discussion of the climate change scenarios and the possibilities for mitigating and protecting the marine environment and living marine resources.

3. AAAS - Global Climate-Change Resources AAAS Events Links, Events, AAAS Board, AAAS Council, AAAS Elections, AAAS Statements, AAAS Store, Annual Meeting, Archives, Awards, Development, Education http://www.aaas.org/news/press_room/climate_change/

4. Human Impacts On Climate Human Impacts on Climate. Adopted by Council December, 2003. Human activities are increasingly altering the Earth s climate. These effects add to natural http://www.agu.org/sci_soc/policy/positions/climate_change.shtml

Human Impacts on Climate Adopted by Council December, 2003 Human activities are increasingly altering the Earth's climate. These effects add to natural influences that have been present over Earth's history. Scientific evidence strongly indicates that natural influences cannot explain the rapid increase in global near-surface temperatures observed during the second half of the 20th century. Human impacts on the climate system include increasing concentrations of atmospheric greenhouse gases (e.g., carbon dioxide, chlorofluorocarbons and their substitutes, methane, nitrous oxide, etc.), air pollution, increasing concentrations of airborne particles, and land alteration. A particular concern is that atmospheric levels of carbon dioxide may be rising faster than at any time in Earth's history, except possibly following rare events like impacts from large extraterrestrial objects. Atmospheric carbon dioxide concentrations have increased since the mid-1700s through fossil fuel burning and changes in land use, with more than 80% of this increase occurring since 1900. Moreover, research indicates that increased levels of carbon dioxide will remain in the atmosphere for hundreds to thousands of years. It is virtually certain that increasing atmospheric concentrations of carbon dioxide and other greenhouse gases will cause global surface climate to be warmer. The complexity of the climate system makes it difficult to predict some aspects of human-induced climate change: exactly how fast it will occur, exactly how much it will change, and exactly where those changes will take place. In contrast, scientists are confident in other predictions. Mid-continent warming will be greater than over the oceans, and there will be greater warming at higher latitudes. Some polar and glacial ice will melt, and the oceans will warm; both effects will contribute to higher sea levels. The hydrologic cycle will change and intensify, leading to changes in water supply as well as flood and drought patterns. There will be considerable regional variations in the resulting impacts.

5. Climate Change : Questions On Climate Change Climate Change Questions on Climate Change This study contains a faithful summary of the Third Assessment Report of the IPCC, a leading scientific http://www.greenfacts.org/studies/climate_change/

alert("script not found"); Skip Navigation Digests Co-Publications About us ... Climate Level 1 Languages: Read also the new edition 2007 IPCC Assessment Report on Climate Change Scientific Facts on Climate Change 2001 Assessment Main Source: IPCC GreenFacts (2002) Download Questions and Answers presented in 3 levels of increasing detail. Context - The Earth's climate has changed over the last century and by 2001 there was strong evidence that most of the warming observed the previous 50 years was attributable to human activities. Moreover, computer models already predicted that temperatures would continue to rise over the 21st century. This was revealed by the Third Assessment Report of the Intergovernmental Panel on Climate Change ( IPCC ) which involved many hundreds of scientists from many countries. What was known in 2001 about climate change and its consequences? Questions on Climate Change and Global Warming Has the climate changed during the 20th century?

6. CLIMATE CHANGE The House Committee on Energy and Commerce Selected Legislation and Issues Climate Change. http://energycommerce.house.gov/Climate_Change/index.shtml

Magnify Text none Committee on Energy and Commerce 2125 Rayburn House Office Building, Washington, DC 20515 Phone: (202) 225-2927 Home Page > Climate Change CLIMATE CHANGE Climate Change Legislation Design White Paper s The Committee on Energy and Commerce and its Subcommittee on Energy and Air Quality are issuing a series of Climate Change Legislation Design White Papers as the next step toward enactment of a mandatory, economy-wide climate change program. While the hearings earlier in this Congress were designed to give the Committee an understanding of the status and projected path of climate change and potential ways to address it, these White Papers and the hearings on them will focus on the construction of mandatory, economy-wide climate change legislation. The White Papers will describe the basic design and key principles of a regulatory program and also identify issues about which further information and discussion is desirable. Climate Change White Paper: Appropriate Roles for Different Levels of Government (Feb. 25, 2008)

7. David Suzuki Foundation: Climate Change The David Suzuki Foundation is a sciencebased Canadian environmental organization, specializing in global warming, sustainable forestry, salmon farming and http://www.davidsuzuki.org/Climate_Change/

About Us Contact Site Map Search UN Climate Summit Bali NHL Players Science Impacts ... Links addthis_url = location.href; addthis_title = document.title; addthis_pub = 'shimmertron'; Climate change is considered by many scientists to be the most serious threat facing the world today. The Kyoto Protocol is an international agreement to cut greenhouse gas emissions that cause climate change. Solutions include phasing out coal plants, expanding renewable energy sources and public transit, and creating new efficiency standards for vehicles and buildings. Find out what you can do to help make a difference! What's new A new report from the David Suzuki Foundation outlines ways to make the 2010 Winter Games carbon neutral. Find out what NHL players are doing about Global Warming A Suzuki Foundation op-ed in the Vancouver Sun details how the B.C. Premier's bold move to legislate emission targets is jeopardized by freeway expansion plans in the Vancouver region. You can also e-mail Premier Campbell , urging him toward a transit-oriented transportation solution by providing a reliable and convenient option to polluting cars. Read about how the provinces can take action on climate change in Learn how to host a sustainable

8. Avaaz.org - The World In Action Join with people around the world in taking action on pressing global issues. http://www.avaaz.org/blog/en/climate_change/

// - // Globals // Major version of Flash required var requiredMajorVersion = 8; // Minor version of Flash required var requiredMinorVersion = 0; // Revision of Flash required var requiredRevision = 0; // the version of javascript supported var jsVersion = 1.0; // - HOME SIGN UP CAMPAIGNS DONATE ... Italiano Avaaz Members and Global Youth Rally Hundreds To Call For Urgent Action In Bali On Sunday, Avaaz members and an international coalition of youth, along with local and national NGOs, coordinated a striking aerial art project on Kuta Beach in Bali. Artist John Quigley organized the crowd of over a 500 people to arrange their bodies to form an image of the world being washed away by the rising tide. Above this image, more people spelled the words "Act Now," a message designed to target the UN Climate Negotiations at the beginning of their critical second week. It was an extraordinary day in a beautiful location that is under tremendous threat from climate change impacts. When photographed from above, the image depicts half of the world awash in rising ocean waters, symbolizing how the nations representing the Global South will suffer the most severe impacts of climate change. The activists sponsoring the event are calling for a Bali breakthrough that would trigger the momentum needed for resolving the climate crisis. A successful Bali Mandate from this year's UN Conference would ensure there is no gap between commitment periods and that actionable items and processes are defined in Bali to work towards a 2009 consensus focused on strong and binding global emissions targets.

9. NASA - Climate Change Resource Reel There s a problem with your browser or settings. Your browser or your browser s settings are not supported. To get the best experience possible, http://www.nasa.gov/centers/goddard/earthandsun/climate_change.html

There's a problem with your browser or settings. Your browser or your browser's settings are not supported. To get the best experience possible, please download a compatible browser. If you know your browser is up to date, you should check to ensure that javascript is enabled. Follow this link to skip to the main content NASA - National Aeronautics and Space Administration Help and Preferences NASA Home Centers Goddard Home Earth and Sun Send Bookmark ... Print var itemIdAndJSFileURL= 'centers-goddard_home$/templateimages/redesign/leftnav-htmls/centers-goddard_.js'; var splitResult = itemIdAndJSFileURL.split("$"); $('menu_item_id').value = splitResult[0]; var url = splitResult[1]; var defPage = '/templateimages/redesign/leftnav-htmls/home_.js'; if(url == '.js') url = defPage; document.write('' + ''); Multimedia Text Size Climate Change Resource Reel From polar ice to phytoplankton, parts of the earth system are constantly changing. At NASA, scientists strive to better understand these changes and how they are interconnected. Using remote-sensing data from satellites, this research diagnoses our planet’s current health and will help future generations and explorers understand the earth system as a whole.

10. Climate Change Activities Copyright © 2001, Gulf of Maine Aquarium • Please email comments to Webmaster. http://www.gma.org/climate_change/index.html

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11. Caring For Climate: Global Business Leadership Platform On Climate Change Caring for Climate Global Business Leadership Platform on Climate Change. http://www.unglobalcompact.org/Issues/Environment/Climate_Change/index.html

ez_codePath = "../../../../system/modules/org.un.globalcompact.templates/resources/code/" document.write(""); Search the GC Search Participants Participant Login Site Map ... Contact Us document.write(""); Search GC Search Participants Overview Human Rights Labour Environment ... Discussion Forum You are here Home Issues Environment Climate Change “Caring For Climate: the Business Leadership Platform” A Statement by the Business Leaders of the UN Global Compact Download the Caring for Climate Statement Arabic Chinese English French ... Caring for Climate overview and engagement opportunities 2007-2010 "Caring for Climate" is a voluntary and complementary action platform for those UN Global Compact participants who seek to demonstrate leadership on the issue of climate change. It provides a framework for business leaders to advance practical solutions and help shape public policy as well as public attitudes. Chief executive officers who support the statement are prepared to set goals, develop and expand strategies and practices, and to publicly disclose emissions. With respect to disclosure, endorsers commit to communicating on an annual basis on progress made as part of their existing disclosure commitment within the UN Global Compact framework, that is, the Communication on Progress. Caring for Climate is a unique initiative a commitment to action by business and a call to governments, incorporating transparency. It offers an interface for business and governments at the global level, with the potential of rapidly becoming the leading platform for pragmatic business solutions transcending national interests and responding to the global nature of the issue at stake. Moreover, the broad geographical spread of its supporters, involving both leading actors from developed and emerging economies, reinforces the novel nature of this engagement platform.

12. Climate Change UKCIP UK Climate Impacts Programme. Home About UKCIP Climate Change Climate Impacts News Events Contact Us Resources. Site Search http://www.ukcip.org.uk/climate_change/

13. APTA: Public Transportation's Contribution To Greenhouse Gas Reduction American Public Transportation Association (APTA)EBusiness. http://www.apta.com/research/info/online/climate_change.cfm

April 03, 2008 APTA Search: APTA Industry Information Information Center Online Publications and Databases Public Transportation's Contribution to Greenhouse Gas Reduction September 2007 Download in Adobe PDF format SAIC: From Energy To Solutions Submitted by: Science Applications International Corporation (SAIC) SAIC Energy Solutions Operation 8301 Greensboro Drive, MS E-4-6 McLean, VA 22102 Acknowledgements This study was conducted for the American Public Transportation Association (APTA) with funding provided through the Transit Cooperative Research Program (TCRP) Project J-11/Task 2. The TCRP is sponsored by the Federal Transit Administration (FTA); directed by the Transit Development Corporation, the education and research arm of the APTA; and administered by the National Academies, through the Transportation Board. The report was prepared by SAIC. The opinions and conclusions expressed or implied are those of the research agency that performed the research and are not necessarily those of the Federal Transit Administration, Transportation Research Board (TRB) or its sponsors. This report has not been reviewed or accepted by the TRB Executive Committee or the Governing Board of the National Research Council. Table of Contents Abbreviations Executive Summary Background and Introduction U.S. Mobile Greenhouse Gas Emissions, 1990–2004

14. NetLogo User Community Models: Climate_change Run climate_change in your browser uses NetLogo 3.1.5 Download climate_change If clicking does not initiate a download, try right clicking or control http://ccl.northwestern.edu/netlogo/models/community/Climate_change

Home Page Download Models Community Models ... Extensions User Manual: Web version Printable version FAQ Resources ... Contact Us NetLogo User Community Models (back to the NetLogo User Community Models) by Ed Hazzard (Submitted: 06/06/2007) Run Climate_change in your browser uses NetLogo 3.1.5 requires Java 1.4.1+ system requirements Download Climate_change If clicking does not initiate a download, try right clicking or control clicking and choosing "Save" or "Download". Note: If you have trouble running the model in your browser, you may wish to download the application instead. WHAT IS IT? This is a model of energy flow in the earth. It shows the earth as rose colored. On the earth surface is a green strip. Above that is a blue atmosphere and black space at the top. Clouds and CO2 molecules can be added to the atmosphere. The CO2 molecules represent greenhouse gasses that block infrared light that the earth emits. HOW IT WORKS Yellow arrowheads stream downward representing sunlight energy. Some of the sunlight reflects off clouds and more can reflect off the earth surface. If sunlight is absorbed by the earth, it turns into a red dot, representing heat energy. Each dot represents the energy of one yellow sunlight arrowhead. The red dots randomly move around the earth. The temperature of the earth is related to the total number of red dots.

15. Zero Waste, Recycling And Climate Change High levels of energy and materials consumption in industrial countries are the driving force behind the decline in virtually all major life support systems http://www.grrn.org/zerowaste/climate_change.html

Version 9.0 Link One Link Two Link One ... back Zero Waste, Recycling and Climate Change Bill Sheehan, Ph.D. GrassRoots Recycling Network October, 2000 Save Energy Save Forests Landfills, Incinerators and Composting Take Action High levels of energy and materials consumption in industrial countries are the driving force behind the decline in virtually all major life support systems on Planet Earth. Over the last decade an increasing number of scientists and other thoughtful people have come to conclude that modern levels of materials and energy consumption are having a destabilizing influence on the world's atmosphere. Energy consumption contributes directly to climate change by adding carbon-based molecules to the atmosphere in excess of naturally occurring amounts. Carbon molecules, primarily carbon dioxide from burning petroleum products, trap radiant heat and keep it from escaping from the Earth's atmosphere. The resulting warming of the air is changing our global climate. Materials consumption contributes indirectly to climate change because it requires energy to mine, extract, harvest, process, and transport raw materials, and more energy to manufacture, transport and, after use, dispose of products. The United States consumed 30 percent of the materials produced globally in 1995, while it accounted for less than 5 percent of the world's population.

16. International Alert: Climate Change And Conflict International Alert is conducting researching into the links between climate change and violent conflict. http://www.international-alert.org/climate_change.php

Search Text only version Climate change and violent conflict The impact of climate change will make the poorest communities across the world poorer. Many of them are already affected by conflict and instability and thus face a dual risk. International Alert’s new research finds that the consequences of climate change will fuel violent conflict, which itself hinders the ability of governments and local communities to adapt to the pressures of climate change. 102 countries at risk (click on map to enlarge) New! A Climate of Conflict Climate change is upon us and its physical effects have started to unfold. That is the broad scientific consensus expressed in the Fourth Assessment Review of the Inter-governmental Panel on Climate Change. This report takes this finding as its starting point and looks at the social and human consequences that are likely to ensue – particularly the risks of conflict and instability. Download PDF Version or Order a Copy Click here for media advisories PRESS COVERAGE Please note: links and attachments will open in a new window UN News Centre : At World Economic Forum, Ban Ki-moon pledges action on water resources

17. United Nations Division For Sustainable Development- Sustainable Development Iss Climate change. Climate change formed part of the thematic cluster with energy, industrial development, and air pollution/atmosphere reviewed by the http://www.un.org/esa/sustdev/sdissues/climate_change/climate_change.htm

Home About Us Commission on Sustainable ... Search Sustainable Development Topics Climate change Climate change formed part of the thematic cluster with energy, industrial development, and air pollution/atmosphere reviewed by the Commission on Sustainable Development at its fourteenth session in 2006 and fifteenth session in 2007. The Earth's climate system has demonstrably changed on both global and regional scales since the pre-industrial era, with some of these changes attributable to human activities. The atmospheric concentrations of key anthropogenic greenhouse gases (i.e. carbon dioxide, methane, nitrous oxide and tropospheric ozone (O3) reached their highest recorded levels, primarily due to the combustion of fossil fuels, agriculture, and land use changes. The consensus scientific basis on climate change is provided by the I ntergovernmental Panel on Climate Change (IPCC), established in the late 1980s under the auspices of the World Meteorological Organization (WMO) and UNEP. The summary of the IPCC Fourth Assessment Report, released in early 2007, concludes that the warming of the climate system is unequivocal and accelerating. It goes on to state that the observed increase in global average temperatures is very likely (greater than 90 % confidence) due to GHG emissions from human activities, up from greater than 60% confidence in its 2001 assessment report. Agenda 21, which addresses climate change under its

18. Climate Change - Our Research - British Antarctic Survey Introduction to the topic of climate change part of the science conducted by the British Antarctic Survey. http://www.antarctica.ac.uk/Key_Topics/Climate_Change/

Skip navigation Press Employment Contact Us ... Images Search this site Search BAS Research Our Research Introduction to BAS Research Research by Topic ... Previous Research Climate Change - Our Research Home BAS Research Our Research Research by Topic ... Climate Change See Also Our Views Climate change The Antarctic is a pivotal part of the Earth's climate system and a sensitive barometer of environmental change. Although remote and inhospitable, Antarctica is Earth's most powerful natural laboratory. Understanding how the Antarctic is responding to current climate change - and what the continent was like in the past - is essential if scientists are to be able to more accurately predict future climate change and provide accurate information to politicians and policy makers. British Antarctic Survey (BAS) has for the past 60 years been responsible for most of the UK's scientific research in Antarctica and its current five-year research strategy is focussed on deepening our understanding of climate change. Antarctic ice cores reveal the clearest link between levels of greenhouse gases in the atmosphere and the Earth's temperature. They show that the temperature of the climate and the levels of greenhouse gases are intimately linked. In 2004, ice core scientists at BAS working together with colleagues from other European nations successfully extracted a three-kilometre ice core from the Antarctic. This core contains a record of the Earth's climate stretching back 800,000 years - giving us by far the oldest continuous climate record yet obtained from ice cores.

19. Environment - Environmental Economics Environmental economics. Published Studies. Economic Evaluation of Sectoral Emission Reduction Objectives for Climate Change http://ec.europa.eu/environment/enveco/climate_change/sectoral_objectives.htm

Important legal notice document.write(''); document.write('English (en)'); document.write(' '); en EUROPA European Commission Environment Environmental Economics ... Resources Environmental economics Published Studies Economic Evaluation of Sectoral Emission Reduction Objectives for Climate Change Highlights Summary for Policy Makers Top-down report Bottom-up reports Summary for Policy Makers Summary for Policy Makers pdf Executive Summary pdf ... Results for the EU (Annex 1) (in Excel) Results per Member State (Annex 2) (in Excel) Comparison of top-down and bottom-up approaches pdf Top-down report Top-down report pdf Executive summary pdf Emission Reduction Objectives in the EU pdf in Excel (six variants) Emission Reduction Objectives in Member States (two variants) Austria pdf in Excel Belgium ... in Excel Bottom-up reports Summary of bottom-up reports pdf Executive Summary pdf Sector-specific bottom-up reports Agriculture pdf Executive summary pdf ... Extraction, Transport and Distribution

20. Africa Agriculture Climate : : Home Page Welcome to Climate Change and Agriculture in Africa. Analysis of the impacts of climate change suggests that agroecological systems are the most vulnerable http://www.ceepa.co.za/Climate_Change/index.html

Welcome to Climate Change and Agriculture in Africa Analysis of the impacts of climate change suggests that agro-ecological systems are the most vulnerable sectors. Agriculture in low latitude developing countries is expected to be especially vulnerable because climates of many of these countries are already too hot. Further warming is consequently expected to reduce crop productivity adversely. These effects are exacerbated by the fact that agriculture and agro-ecological systems are especially prominent in the economies of African countries and the systems tend to be less capital and technology intensive. Predictions of impacts across regions consequently suggest large changes in the agricultural systems of low latitude (mostly, developing) countries. This website is devoted to providing information on the activities of the project: Climate, water and agriculture: Impacts and adaptation of agro-ecological systems in Africa . This project seeks to further understand the impact that climate has and may have on agricultural systems in Africa and what measures can be used to mitigate such effects. The project is implemented by the Agriculture and Rural Development Program , the World Bank Institute and the Africa Region of the World Bank and executed by the Centre for Environmental Economics and Policy in Africa (CEEPA) of the University of Pretoria "Understanding and Adapting to Climate Change: What can the World Learn from Africa's Experience." Zaragoza, Spain, 13 - 16 December 2004.

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