Main Frame A view on agriculture and global warming. http://www.geocities.com/freetime52/
Global Warming In colloquial usage it often refers to the enhanced global warming which is The outcome of any significant global warming will be various changes in http://www.uic.com.au/nip24.htm
Extractions: Nuclear Issues Briefing Paper 24 January 2003 The "greenhouse effect" is the term used to describe the retention of heat in the earth's lower atmosphere (troposphere). In colloquial usage it often refers to the enhanced global warming which is considered likely to occur because of the increasing concentrations of certain trace gases in the atmosphere. These gases are generally known as greenhouse gases, or more specifically as radiative gases. Concentrations of them have increased significantly during this century, and a large part of this increase is attributed to human sources, i.e. it is anthropogenic. Furthermore, although most sources of anthropogenic emissions can be identified in particular countries, their effect is in no way confined to those countries, - it is global.
WWF - One-third Of World's Habitat At Risk From Global Warming global warming UnitThe global warming unit contains activities that encourage and support student The global warming Unit also supports classroom activities in the area of http://www.panda.org/resources/publications/climate/speedkills/
Extractions: The report, Global Warming and Terrestrial Biodiversity Decline , says that in the northern latitudes of Canada, Russia and Scandinavia, where warming is predicted to be most rapid, up to 70 percent of habitat could be lost. Russia, Canada, Kyrgystan, Norway, Sweden, Finland, Latvia, Uruguay, Bhutan and Mongolia are likely to loose 45 per cent or more of current habitat while many coastal and island species will be at risk from the combined threat of warming oceans, sea-level rise and range shifts. "As global warming accelerates, plants and animals will come under increasing pressure to migrate to find suitable habitat. Some will just not be able to move fast enough," said Adam Markham, Executive Director of a US NGO, Clean Air-Cool Planet, one of the co-authors of the report. "In some places, plants would need to move ten times faster than they did during the last ice age merely to survive. It is likely that global warming will mean extinction for some plants and animals."
Plant Trees To Reduce Global Warming Calculations of carbon dioxide emissions are offered for various modes of travel and energy use (1 tree per 1000 kilowatthours, for example). http://www.angelfire.com/fl4/globalcooling/
Extractions: Relax. Reduce what you can and plant trees in the tropics to absorb the rest. This book focuses on the three actions you can take to cool the planet. These Global Cooling actions are: 1) Use fossil fuels more efficiently and switch to renewable fuels; 2) Protect old-growth trees and rainforest as warehouses for carbon and harvest existing forests in a sustainable manner; and 3) Plant trees in the tropics to offset the carbon dioxide that we produce.
Backgrounders | Research | Economist.com also question the calculations underlying globalwarming predictions. project discusses the effects of global warming and three possible remedies. http://www.economist.com/research/backgrounders/displaybackgrounder.cfm?bg=10107
Global Warming Topics Has articles on many topics including CFCs, deforestation, and the Kyoto protocol. http://www.ace.mmu.ac.uk/eae/Global_Warming/global_warming.html
Extractions: The Earth has warmed up by about 0.6°C in the last 100 years. During this period, man-made emissions of greenhouse gases have increased, largely as a result of the burning of fossil fuels and deforestation. In the last 20 years, concern has grown that these two phenomena are, at least in part, associated with each other. That is to say, global warming is now considered most probably to be due to the enhanced greenhouse effect. Click Bart Simpson (left) for the easy-to-read young person's text and Mr. Burns (right) for the more technical information. Are you a student of climate change? Check out the new online global climate change student information guide Home Introduction to Global Warming 20th Century 21st Century Aerosols Agriculture British Isles Carbon Dioxide CFCs Climate Change Concentrations Deforestation Desertification Detecting Global Warming Doing Our Bit Ecosystems Emissions Enhanced Greenhouse Effect Extreme Weather FCCC Fossil Fuels Greenhouse Effect Greenhouse Gases GWPs HCFCs Human Health Impacts of Global Warming Industrial Revolution IPCC Kyoto Protocol Methane Modelling Global Warming Nitrous Oxide Rainfall Sea Level Temperature Trees UK Programme Water
World News From The Times And The Sunday Times - Times Online The strongest evidence yet that global warming has been triggered by human activityhas emerged from a major study of rising temperatures in the worlds http://www.timesonline.co.uk/article/0,,3-1489955,00.html
Extractions: NI_MPU('middle'); The present trend of warmer sea temperatures, which have risen by an average of half a degree Celsius (0.9F) over the past 40 years, can be explained only if greenhouse gas emissions are responsible, new research has revealed. The results are so compelling that they should end controversy about the causes of climate change, one of the scientists who led the study said yesterday. "The debate about whether there is a global warming signal now is over, at least for rational people," said Tim Barnett, of the Scripps Institution of Oceanography in La Jolla, California. "The models got it right. If a politician stands up and says the uncertainty is too great to believe these models, that is no longer tenable." "What absolutely nailed it was the greenhouse model," Dr Barnett told the American Association for the Advancement of Science conference in Washington. Two models, one designed in Britain and one here in the US, got it almost exactly. We were stunned. They did it so well it was almost unbelieveable."
Extractions: (coolit.pdf - 1681 KB) Global Warming Cool it! is available for downloading as a PDF file. ( PDF help Australian Greenhouse Office, May 2003 Top About the AGO Contacts Search ... Privacy Australian Greenhouse Office, Department of the Environment and Heritage , GPO Box 787 Canberra ACT 2601 Australia Phone: +61 02 6274 1888
Extractions: Recommended by the CoVis Program: Learning through Collaborative Visualization - Enhancing science learning to provide authentic experiences in the practice of science CoVis Program . Review by Dr. Jonathan D. W. Kahl, Director UWM CoVis Project, Assoc Professor, Atmospheric Science Name of Product: Global Warming: Understanding Greenhouse Gases
California Global Wamring Campaign California global warming Campaing s website with information about climate changeand Contact information for the California global warming Campaign http://www.nextgeneration.org/globalwarming/
Extractions: "Global warming is real. There is enough scientific evidence to indicate that it is real and that we need to take every step possible to try and halt it.''U.N. Secretary-General Kofi Annan The most populous state in the country, California is home to over 30 million people. In a country that is the world's most egregious global warming polluter, California is second only to Texas in carbon dioxide emissions. As the 5th largest economy in the world, and a hotbed for innovative and progressive thinking, California has a unique and vital role to play in leading the fight against global warming.
Extractions: By By Michael Schirber Climate change could make future hurricanes stronger, but whether the effect is measurable is still a matter of debate. It is also unknown whether it will change the total number of storms. Kevin Trenberth from the National Center for Atmospheric Research claims that warmer oceans and increased moisture could intensify the showers and thunderstorms that fuel hurricanes "Trends in human-influenced environmental changes are now evident in hurricane regions," Trenberth said. "These changes are expected to affect hurricane intensity and rainfall, but the effect on hurricane numbers remains unclear. The key scientific question is how hurricanes are changing." Sea-surface temperatures in the tropical North Atlantic - the breeding ground for most U.S. hurricanes - have been the warmest on record over the last decade. Across the globe, the amount of water vapor over the oceans has increased by about 2 percent since 1988.
Global Warming Bombshell A prime piece of evidence linking human activity to climate change turns out tobe an artifact of poor mathematics. http://www.technologyreview.com/articles/04/10/wo_muller101504.asp
Extractions: By Richard Muller October 15, 2004 Page 1 of next Progress in science is sometimes made by great discoveries. But science also advances when we learn that something we believed to be true isnt. When solving a jigsaw puzzle, the solution can sometimes be stymied by the fact that a wrong piece has been wedged in a key place. In the scientific and political debate over global warming, the latest wrong piece may be the hockey stick, the famous plot (shown below), published by University of Massachusetts geoscientist Michael Mann and colleagues. This plot purports to show that we are now experiencing the warmest climate in a millennium, and that the earth, after remaining cool for centuries during the medieval era, suddenly began to heat up about 100 years agojust at the time that the burning of coal and oil led to an increase in atmospheric levels of carbon dioxide. I talked about this at length in my December 2003 column . Unfortunately, discussion of this plot has been so polluted by political and activist frenzy that it is hard to dig into it to reach the science. My earlier column was largely a plea to let science proceed unmolested. Unfortunately, the very importance of the issue has made careful science difficult to pursue.
Global Warming:A Chilling Perspective Earth s climate has been warming since the most recent in a series of Ice Agesended 18000 years ago. http://www.clearlight.com/~mhieb/WVFossils/ice_ages.html
Extractions: A Chilling Perspective A Brief History of Ice Ages and Warming Causes of Global Climate Change Playing with Numbers A Matter of Opinion Unraveling the Earth's Temperature Record Stopping Climate Change G lobal warming started long before the "Industrial Revolution" and the invention of the internal combustion engine. Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial ice. Earth's climate and the biosphere have been in constant flux, dominated by ice ages and glaciers for the past several million years. We are currently enjoying a temporary reprieve from the deep freeze. Approximately every 100,000 years Earth's climate warms up temporarily. These warm periods, called interglacial periods , appear to last approximately 15,000 to 20,000 years before regressing back to a cold ice age climate. At year 18,000 and counting our current interglacial vacation from the Ice Age is much nearer it's end than it's beginning. Global warming during Earth's current interglacial warm period has greatly altered our environment and the distribution and diversity of all life. For example:
Stop The Spin Satiral organization dedicated to stopping global warming by stopping the spin of the earth. http://stopthespin.org/
Extractions: "Natural disasters claim globally nearly 250,000 lives every year. Weather and climate related disasters were responsible for 90 percent of those deaths in the 1990s with another 200 million people affected each year by natural disasters - seven times the number of persons affected by armed conflict. The global annual costs for property damage lay between 50 to 100 billion US dollars.
Global Warming, Air Quality, Climate Change, Ozone, Weather A onestop source of information, for younger and older users alike, on a range of atmospheric issues, including air quality, acid rain, global warming and ozone depletion. Provided by the UK Government Department of the Environment, Transport and the Regions. http://www.doc.mmu.ac.uk/aric/eae/
Chemical & Engineering News Climate Observations Substantiate global warming Models Furthermore, mostmodels project that with global warming, the increase in mean surface http://pubs.acs.org/hotartcl/cenear/951127/pg1.html
Extractions: support projected global temperature increase Many people believe that a great deal of controversy surrounds the science of global warming. In reality, however, scientists in the field do agree on many aspects of global warming. For example, on the basis of a variety of evidence a consensus is emerging among researchers that human beings, primarily through their burning of fossil fuels, are already perturbing Earth's climate - defined as weather averaged across years and large regions. This consensus, and the evidence that supports it, are documented in the United Nations Intergovernmental Panel on Climate Change's (IPCC) latest report on the science of global warming. The 2,000-plus page report, written by about 500 scientists and reviewed by about 500 other experts, will be released next month. IPCC was established in 1988 under the auspices of the UN Convention on Climate Change to review the science of global warming and to advise some 70 countries on ways to mitigate and prevent it. IPCC issues a major report every five years. The report will be available at the Office of the U.S. Global Change Research Program, Washington, D.C. Global mean temperature has been on the rise since 1880 Climate experts agree that the average global air temperature has risen 0.3 to 0.6 Celcius over the past century. This finding is substantiated by other indicators - accelerated melting of alpine glaciers, a sea-level rise of 10 to 25 cm over the past 100 years, and coral bleaching caused by anomalously high sea-surface temperatures - that are all consistent with the increase in global air temperatures. And according to present indications, the average global temperature in 1995 is likely to be as high as or higher than in any year since record keeping began around 1860.
Global Warming An indepth report on the scientific, social, economic, and political issues surrounding climate change. http://www.geocities.com/RainForest/Vines/8620/warm1.html
Extractions: Overview The earths atmosphere functions similarly to the walls and roof of a greenhouse, allowing sunlight to enter, but preventing heat from escaping. Sunlight passes through the atmosphere and heats the earths surface. The earth gives off heat energy, in the form of infrared radiation, that travels back toward the atmosphere. Instead of going into space, some of the infrared radiation is trapped by greenhouse gases. The main greenhouse gases are carbon dioxide, methane, water vapor, and ozone. The gases send infrared radiation back to the earths surface. Around the mid-1800s, with the beginning of the Industrial Revolution, carbon dioxide levels began increasing. The carbon dioxide concentration has risen sharply since then from 280 parts per million before the Industrial Revolution to 360 ppm, the current concentration, or about a 25 percent increase. The methane concentration has risen about 150 percent. The increases are mainly a result of the burning of fossil fuels and the clearing of forests. The average global temperature has risen about 1 degree Celsius since the late 1800s. Though it has not been proven that there is a relationship between greenhouse gas levels and the surface temperature, it is likely that the relationship exists. Scientists believe that if we wait until the 2100s when we can more accurately model climate changes, it will be too late to change the severe impacts of climate change. Scientists have predicted that by 2050, the atmospheric carbon dioxide level will be twice the preindustrial levels. Ice core samples from Greenland and Antarctica provide information about the earths climate for the last 160,000 years. The ice core samples show that the average global temperature has closely reflected the carbon dioxide concentration, supporting the theory of global warming.
