1. Global Warming - Wikipedia, The Free Encyclopedia Global mean surface temperature anomaly 1850 to 2007 relative to 1961–1990. Mean surface temperature anomalies during the period 1995 to 2004 with respect http://en.wikipedia.org/wiki/Global_warming

Global warming From Wikipedia, the free encyclopedia Jump to: navigation search This article is about the current period of increasing global temperature. For other periods of warming in Earth's history, see Palaeoclimatology and Geologic temperature record . See also climate change Global mean surface temperature anomaly relative to 1961–1990 Mean surface temperature anomalies during the period 1995 to 2004 with respect to the average temperatures from 1940 to 1980 Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-twentieth century, and its projected continuation. The average global air temperature near the Earth's surface increased 0.74 C F ) during the hundred years ending in 2005. The Intergovernmental Panel on Climate Change (IPCC) concludes "most of the observed increase in globally averaged temperatures since the mid-twentieth century is very likely due to the observed increase in anthropogenic (man-made) greenhouse gas concentrations" via the greenhouse effect . Natural phenomena such as solar variation combined with volcanoes probably had a small warming effect from pre-industrial times to 1950 and a small cooling effect from 1950 onward.

2. Climate Change For Kids Tiki the penguin explains climate change, greenhouse gases and what you can do to stop it. http://tiki.oneworld.net/global_warming/climate_home.html

Navigate Tiki's site Translate into: My website map Search Our planet's climate is changing Have you heard about how the world's getting hotter? Some people say it is. Some say it isn't. Who's right? And does it matter? How will it affect you and your friends? How will it affect penguins? What can we do about it? These are some of the things I wanted to find out about. Finding your way around my Climate Guide You may not want to look at all of this guide right away, so you can jump to any part that interests you from the table at the bottom of this page. If you want to look through each part, starting at the beginning, click the green arrow below (forward to ' What is climate? '). At the bottom of each new page, you'll find identical arrows which you click to go forward, back or return here. I've made a global warming crossword puzzle here.

3. Global Warming Program | Union Of Concerned Scientists Read articles about climate change, and see how climates are expected to migrate in the next hundred years. http://www.ucsusa.org/global_warming/

dqmcodebase = "http://www.ucsusa.org/menuscripts/" //script folder location Global warming is one of the most serious challenges facing us today. To protect the health and economic well-being of current and future generations, we must reduce our emissions of heat-trapping gases by using the technology, know-how, and practical solutions already at our disposal. Nuclear Power Loan Guarantees Shrivel: The nuclear industry is touting the passage of the omnibus appropriations bill as a victory, but in fact Congress did not rally behind loan guarantees for nuclear power. Nuclear Power in a Warming World: In this new report, UCS describes the role nuclear power should play as a climate change solution. Senate Committee Passes Historic Bill to Reduce Global Warming Pollution Senate Climate Bills Backgrounder: The Senate Commerce, Science and Transportation Committee approved three climate science bills in early December. Bali Bulletin: Get updates on UCS efforts at the United Nation's climate negotiations in Indonesia. How to Avoid Dangerous Climate Change: A Target for U.S. Emissions Reductions

4. Global Warming Links to articles and resources skeptical of claims made by environmentalists about global warming. http://www.skepticism.net/global_warming/index.html

Home FAQ Environment Global Warming Skepticism.Net Guests Logon Account Signup Global Warming If some environmentalists are to be believed, we are on the verge of massive global climate change which will see a significant rise in sea levels, chaotic weather patterns, and catastrophic droughts all caused by small increase in global average temperature. This site provides links to resources skeptical of those sort of doomsday scenarios. The articles linked to here are written by a wide variety of people, from scientists to laypeople, and their inclusion here should not be read as an endorsement of their positions. Just as when dealing with things coming out of the environmentalist camp, you need to use your brain and decide for yourself to what extent global warming poses a threat to humanity. Articles about global warming on this site: Ross Gelbspan's Pulitzer Prize New York Times Screws Up Correction of Global Warming Story New York Times Leads in Global Warming Nonsense ... What Is Stephen Hawking Talking About? Articles about global warming on other sites: Basic introduction to global warming The coming climate - an excellent overview of global warming claims from Scientific American.

5. Global Warming- Introduction Global Warming and it s causes What does geologic history tell us about our past and future?. http://www.geocraft.com/WVFossils/global_warming.html

Global Warming Is Global Warming real ? Earth's Icehouse History The Role of the Greenhouse Effect Ready... fire... aim? Is Global Warming real? E arth's climate is changing. The result so far: Glaciers have melted and retreated dramatically Ecosystems around the world are being altered This is not new news. These changes started 18,000 years ago, as the earth emerged from the Pleistocene Ice Age a time when ice-covered mammoths and mastodons roamed the earth. Geologists know great ice sheets once covered large portions of the continents. These glaciers have alternately retreated and advanced as the earth has warmed and cooled, in cycles spanning hundreds, thousands, and millions of years. Historical data from ocean sediments and ice cores indicate warm interglacial periods of 15,000 - 20,000 years separate each major ice age. We currently are in an interglacial period, and are due ( some say overdue ) for the next 100,000- year Ice Age. Earth's Icehouse History B eginning about 18,000 years ago the Earth started warming up, halting at least temporarily a 100,000-year-long Ice Age, during which the upper latitudes of almost all the continents lay buried under thick sheets of glacial ice.

6. ScienceDaily: Global Warming News Global Warming Research. Learn about the causes and effects of global warming. Consider possible global warming solutions. Read predictions of rising sea http://www.sciencedaily.com/news/earth_climate/global_warming/

Global Warming News Wednesday, May 28, 2008 Print Email Bookmark Latest News Earth Science Atmosphere Atmosphere Climate Weather Chemistry ... Oceanography Environmental Issues Acid Rain Air Pollution Air Quality Drought ... Sustainability Environmental Science Biodiversity Coral Reefs Desert Ecology ... Wildfires Natural Disasters Earthquakes Landslides Natural Disasters Near-Earth Object Impacts Severe Weather El Nino and La Nina Floods Hurricanes and Cyclones Severe Weather ... Books RSS Large Methane Release Could Cause Abrupt Climate Change As Happened 635 Million Years Ago full story Understanding Autumn Rain Decline In SE Australia full story ... Climate Change Already Affecting U.S. Water, Land, And Biodiversity, Report Finds Browse News Stories 1 to 10 of 2,366 stories view headlines only Forest Trees Global Warming ... Scientists Remove Thousands Of Aspen Trees To Glimpse Forest's Future May 28, 2008 full story Global Warming Geography Environmental Issues ... Into The Wild To Study The Effect of Global Warming On Natural Habitats May 28, 2008 full story Global Warming Climate Environmental Issues ... Melting Glaciers May Release DDT And Contaminate Antarctic Environment May 27, 2008 full story Wildfires Global Warming Forest ... Scorched Earth Millenium Map Shows 'Fire Scars' May 27, 2008

7. Global Warming/Climate Change Theme The primary focus of the Community Learning Network (CLN) is to help K12 teachers integrate Information Technology into their classrooms. http://www.cln.org/themes/global_warming.html

Global Warming/Climate Change Theme Page Below are the CLN "Theme Pages" which support the study of Global Warming/Climate Change. CLN's theme pages are collections of useful Internet educational resources within a narrow curricular topic and contain links to two types of information. Students and teachers will find curricular resources (information, content...) to help them learn about this topic. In addition, there are links to instructional materials (lesson plans) which will help teachers provide instruction in this theme. Air Quality Ozone Depletion Global Warming/Climate Change Resources This "Theme Page" has links to two types of resources related to the study of global warming / climate change. Students and teachers will find curricular resources (information, content...) to help them learn about this topic. In addition, there are also links to instructional materials (lesson plans) which will help teachers provide instruction in this theme. Please read our Encyclopedia of the Atmospheric Environment Published online in 2000, the "Encyclopedia of the Atmospheric Environment" is a clever two-level encyclopedia about climate, global warming, weather, and related topics for grades 9 to 12 students.

8. Global Warming global_warming.gif (97860 bytes) Global Warming The Complete Briefing. Global Warming and the resulting climate change is one of the most serious http://healthandenergy.com/global_warming.htm

Global Warming The Inevitable Energy Transition The challenge of Global Climate Change makes a shift away from fossil fuels necessary for planetary survival. The impending decline in worldwide production of oil and natural gas means that the transition is inevitable our only choice is whether to undertake it proactively and cooperatively, or put it off at our peril. Peaking and decline of fossil fuel production provides an opportunity and a spur to action. More... President Bush said, "It's easier to deal with the climate change issue if you've got the revenues and finances to invest in new technologies that will change how we live, and at the same time enable us to grow our economies." NOTE : The $14 billion dollars spent monthly by the USA for war in Iraq and Afghanistan continue to reduce the ability of the USA to invest in renewable energy systems and improving energy efficiency. Nicholas Stern says climate change worse than he thought Nicholas Stern, the British economist known for a major report in which he declared that combating climate change would cost less than ignoring it, has announced that he was wrong about how bad the problem is. "We badly underestimated the degree of damages and the risks of climate change" in the Oct. 2006 report, he speechified last week. "All of the links in the chain are on average worse than we thought a couple of years ago."

9. Global Warming What is global warming? Global warming is when the earth heats up (the temperature rises). It happens when greenhouse gases (carbon dioxide, water vapor, http://library.thinkquest.org/CR0215471/global_warming.htm

What is global warming? Global warming is when the earth heats up (the temperature rises). It happens when greenhouse gases (carbon dioxide, water vapor, nitrous oxide, and methane) trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This hurts many people, animals, and plants. Many cannot take the change, so they die. What is the greenhouse effect? The greenhouse effect is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere. This is like when heat is trapped in a car. On a very hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows, but it can’t get back out. This is what the greenhouse effect does to the earth. The heat and light can get through the atmosphere, but it can’t get out. As a result, the temperature rises. The squiggle lines coming from the sun are visible light and the lines and arrows inside the car are infrared light. The sun’s heat can get into the car through the windows but is then trapped.

10. Newsmax.com - New Study Explodes Human-Global Warming Story A blockbuster report published in a prestigious scientific journal insists that the evidence shows that climate warming is both natural and unstoppable and http://www.newsmax.com/insidecover/global_warming/2007/12/10/55974.html

On a Handheld Device? Visit mobile.newsmax.com Web Newsmax.com Jokes Links Advertise Cartoons ... RSS SIGN UP FOR FREE NEWS ALERTS Home Newsmax.tv Money Inside Cover ... Election 2008 displayAlerts('http://www.newsmax.com/xml/alerts.xml'); www.newsmax.com Inside Cover RSS ARCHIVE Print Page Forward Page ... E-mail Us New Study Explodes Human-Global Warming Story Monday, December 10, 2007 9:55 AM By: Philip V. Brennan Article Font Size As much of the U.S. is being blasted by vicious ice storms, a blockbuster report published in a prestigious scientific journal insists that the evidence shows that climate warming is both natural and unstoppable and that carbon dioxide (CO2) is not a pollutant. Writing in the International Journal of Climatology of the Royal Meteorological Society, professor David H. Douglass (of the University of Rochester), professor John R. Christy (of the University of Alabama), Benjamin D. Pearson and professor S. Fred Singer (of the University of Virginia) report that observed patterns of temperature changes ("fingerprints") over the last 30 years disagree with what greenhouse models predict and can better be explained by natural factors, such as solar variability. The conclusion is that climate change is "unstoppable" and cannot be affected or modified by controlling the emission of greenhouse gases, such as CO2, as is proposed in current legislation.

11. Media Matters - Global Warming: Misinformation Action Center Search this site. Advanced Search Search Go. You are not logged in. Login / Sign Up Home Issues/Topics About Us Take Action Press/Bloggers http://mediamatters.org/action_center/global_warming/

Media Matters for America Search this site Advanced Search Search Go You are not logged in. Login Sign Up Home Issues/ ... Beck revived falsehood that Bill Clinton said, "We've got to slow down our economy" to fight global warming On his nationally syndicated radio show, Glenn Beck falsely claimed that former President Bill Clinton said, "We've got to slow down our economy" in order to combat global warming, and aired a portion of a speech Clinton made in January. However, as Clinton's full remarks make clear, he did not suggest "slow[ing] down our economy" to fight global warming. Read More Update: Beck apologized for airing portion of Bill Clinton speech "out of context"" Jonah Goldberg misrepresented Gore's comments about Hurricane Katrina In his Los Angeles Times column, Jonah Goldberg asserted that in an NPR interview, Al Gore "chuckled" at the idea that Hurricane Katrina "was God's wrath for New Orleans' sexual depravity," then "went on to blame Katrina on man's energy sinfulness." In fact, Gore stated during the interview that "any individual storm can't be linked singularly to global warming." Read More Fox's Baier misrepresented Gore's comments about Myanmar cyclone NBC's Williams touts Bush administration "milestone" in listing polar bears as "threatened," but doesn't note lawsuits forced its hand

12. Global Warming - MSN Encarta Global Warming, measurable increases in the average temperature of Earth’s atmosphere, oceans, and landmasses. Scientists believe Earth is currently http://encarta.msn.com/encyclopedia_761567022/global_warming.html

var s_account="msnportalencarta"; MSN home Mail My MSN Sign in ... more Hotmail Messenger My MSN MSN Directory Air Tickets/Travel Autos City Guides Election 2008 ... More Additional Reference Materials Thesaurus Translations Multimedia Other Resources Education Resources Math Help Foreign Language Help Project Planner ... Help Editors' Picks Great books about your topic, Global Warming , selected by Encarta editors Related Items Greenhouse Effect Air Pollution, role in global warming more... Encarta Search Search Encarta about Global Warming Advertisement Windows Live® Search Results Interior Declares Polar Bears ‘Threatened’ by Global Warming ... Cooler Heads Coalition is an international group of non-profit organizations dedicated to smarter thinking on the subject of global warming and climate change Global warming - Wikipedia, the free encyclopedia Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. Read articles about climate change, and see how climates are expected to migrate in the next hundred years. See all search results in Windows Live® Search Results Global Warming Encyclopedia Article Find Print E-mail Blog It Multimedia 19 items Article Outline Introduction Global Warming in the Past Global Warming in the Future The Greenhouse Effect ... Efforts to Control Global Warming I Introduction Print this section Global Warming or Climate Change , measurable increases in the average temperature of Earth’s atmosphere , oceans, and landmasses. Scientists believe

13. Global_warming: Blogs, Photos, Videos And More On Technorati Mentions by Day. Posts tagged global_warming per day for the past 30 days. Chart of results for global_warming. See your posts here http://technorati.com/tag/global_warming

Now in Lifestyle The latest news, blogs, and advice on health, design, and travel. Join Sign in Help advanced ... Small Business Up Entertainment Main TV Music ... Gaming Up Lifestyle Main Autos Family ... Travel Up Politics Sports Main Football Up Technology Main Gadgets IT Up Blogs Photos Videos Blogger Central ... Developers Up 27,520 posts tagged Subscribe Posts Blogs Photos Videos search in entire post tags only of blogs with any authority a little authority some authority a lot of authority in language all languages Arabic (العربية) Chinese (中文) Dutch (Nederlands) English French (Fran§ais) German (Deutsch) Greek (Ελληνικά) Hebrew (עברית) Italian (Italiano) Japanese (日本語) Korean (한국어) Norwegian (Norsk) Persian (فارسی) Polish (Polski) Portuguese (Portuguªs) Russian (Русский) Spanish (Espa±ol) Swedish (Svenska) Turkish (T¼rk§e) Vietnamese (Tiếng Việt) Related tags: global warming environment science energy ... climate change From the Green channel Exxon to cut funding to climate change denial groups The oil giant has admitted that its support for lobby groups that question the science of climate change may have hindered action to tackle global warming 17 hours ago in Guardian Understanding 'Carbon Ration Cards' We Report. You decide. Programming note: You won't want to miss the conclusion. See also Eco-lunacy: Brits Want To Force 'Carbon Ration Cards'. H/T: Mark

14. Almanac Of Policy Issues: Global Warming News, background information and links on global warming and climate change. http://www.policyalmanac.org/environment/global_warming.shtml

Almanac of Policy Issues Home Search Archive Global Warming What's the greenhouse effect? Earth's greenhouse effect is a natural phenomenon that helps regulate the temperature of our planet. Simply put, the sun heats the Earth and some of this heat, rather than escaping back to space, is trapped in the atmosphere by clouds and greenhouse gases, such as water vapor and carbon dioxide. If all of these greenhouse gases were to suddenly disappear, our planet would be 60°F colder and uninhabitable. Is our planet warming? The global temperature record shows an average warming of about 1.1°F over the past century . This warming has been recorded in both the northern and southern hemispheres, and over the oceans, with some areas substantially warmer and others actually cooler. The ten warmest years have occurred since 1983, with seven of them since 1990. Recent evidence shows the 20th century was the warmest in the last 1,000 years. The 1990s were the warmest decade and 1998 was the single warmest year of the past millennium. Are human activities responsible for the warming?

15. The Man-Made Global Warming Hoax The Great Global Warming Swindle The Great Global Warming Swindle is a controversial documentary film by British television producer Martin Durkin, http://www.prisonplanet.com/archives/global_warming/index.htm

NAVIGATION Latest News THE ALEX JONES SHOW Listening Info Listen Live Sunday Show Podcast SERVICES Shopping Cart Infowars.net Newsgroup Forum ARCHIVES Subject Archives 9/11 Archive Audio Video SPECIAL REPORTS Paul Watson Steve Watson LINKS Infowars.com Prisonplanet.tv JonesReport.com Martiallaw911.info CONTACT Advertise Contact Alex Contact Webmaster Link To Us ADVERTISEMENTS The Great Global Warming Swindle The Great Global Warming Swindle is a controversial documentary film by British television producer Martin Durkin, which argues against the opinion that human activity is the main cause of global warming. The film showcases scientists, economists, politicians, writers, and others who are sceptical of the scientific consensus on anthropogenic global warming. CBC - Global Warming: Doomsday Called Off A very good unbiased documentary about the real cause of global warming. Although I think that Martin Durkin's The Great Global Warming Swindle is very informative, it is not the only documentary of its kind. In 2004, CBC (Canada) has produced a similar 45-minute-long film.It discusses many topics that are not covered in the Swindle such as the hockey stick graph, from the viewpoint of Willie Soon and Sallie Baliunas.

16. The Rise Of CO2 & Warming Global Warming 1. Great Experiment on Planet Earth 2. - Kyoto Its Implications 3. - The Rise of CO2 Warming 4. - The Scientific Assessment http://earthguide.ucsd.edu/globalchange/global_warming/03.html

Global Change Global Warming Great Experiment on Planet Earth 3. - The Rise of CO The Scientific Assessment Scientific Background Predicting the Future Predictions for California ... The Keeling Curve The time series shows the combined global land and marine surface temperature record from 1856 to 2001. Data from Jones et al., 1998; and from the Climate Research Unit at the University of East Anglia ( www.cru.uea.ac.uk ; compilation by Phil Jones). The Earth has been warming since 1910, with a temperature maximum reached in the 1990’s. (The year 2001 is now the second warmest year on record, according to the World Meteorological Organization.) The scientific conclusion reached is that warming is real. But is this warming man-made? Carbon dioxide has been rising since the time of James Watt (1736 – 1819), inventor of the auto-controlled steam engine that helped jump-start the industrial revolution. Since then, coal, oil and natural gas have powered our economies. Hydro-power and nuclear power are comparatively minor contributors to energy needs (excepting certain countries such as Norway and France). Today the amount of carbon dumped globally into the atmosphere corresponds, on average, to one ton per person on the planet, each year. In the United States, carbon-based energy is especially important. The average American per capita emission is 5 tons of carbon annually. In Sweden (with a similar standard of living as the US) the carbon output is less than two tons of carbon per person per year.

17. Medieval Period Global Warming Graphic Comparison between the Medieval Period Global Warming and the Industrial Era Global WArming. http://biocab.org/Global_Warming.html

@import url(http://www.homestead.com/~media/elements/Text/font_styles.css); CLICK ON THE GRAPHIC TO SEE AN ENHANCED IMAGE. does not seem to be related with ENSO variations; whereas the solar activity seems to have a direct influence. BACK TO TOP ^^ 2006 HAS BEEN THE COLDEST YEAR OF THE DECADE IN THE WORLD ( See Graph here Comparing both sources of data to see its trustworthiness, the data obtained at 1000 meters above sea level are more reliable than the obtained on ground. It is worth to add that the data from globes agree with the data provided by satellites, which are the most precise figures, while the data from ground stations does not match with reality. THE GRAPHS PUBLISHED IN THE WHOLE BIOCAB'S WEBSITE ARE AUTHENTIC ACCORDING TO THE REFERENCE SOURCES, WHICH CAN BE COLLATED TO VERIFY THEIR EXACTITUDE AND VERACITY. ASK IN WRITING FOR PERMISSION TO BIOLOGY CABINET HTTP://BIOCAB.ORG NASIF NAHLE OWNER COMPARATIVE GRAPHIC ON GLOBAL WARMING HOME ABOUT US CONTACT CLICK ON THE GRAPHIC TO SEE AN ENHANCED IMAGE. The Graphics clearly shows that there is not a link between the Global Warming and the increase of Carbon Dioxide in the Atmosphere.

18. American Attitudes: Americans & The World Americans and the World a source of comprehensive information on US public opinion on international issues. The site includes The Digest, which provides http://www.americans-world.org/digest/global_issues/global_warming/gw_summary.cf

WPO Home Search Join our ListServ Contact Us Global Warming The Reality and Urgency of Global Warming Kyoto Treaty A strong majority of Americans favors the US abiding by and ratifying the Kyoto Treaty even when presented with the key arguments for and against the treaty. Only a minority is aware that President Bush opposes participation in the Kyoto Treaty. When respondents are told that that President Bush has decided to not abide by the Treaty approximately half oppose the decision while a fairly small minority supports it. A strong majority opposes his decision to not pursue reductions of carbon dioxide emissions and thinks he should propose develop some plan for reducing emissions. When the Kyoto Treaty was being negotiated in 1998 a strong majority supported the level of emissions cuts proposed, even when informed that the US had originally sought less-deep cuts, and a plurality leaned toward deeper cuts. Legislation Requiring Reductions A very large majority favors legislation requiring reductions in greenhouse gasses. A very large majority of Americans (8 in 10) say they support the targets of the McCain-Lieberman legislation (Climate Stewardship Act) that call for large companies to reduce their emissions of greenhouse gases to 2000 levels by 2010 and to 1990 levels by 2020. Two-thirds say they favor the legislation even if there are significant increases in the cost of energy. A modest majority says that if a candidate favors legislation requiring reductions in greenhouse gas emissions, this will increase the likelihood they will vote for that candidate; only a very small minority says that it would decrease the likelihood. Those in favor of taking steps are more likely to have their vote influenced by a candidate's position than those opposed.

19. WAYN.COM - Profile Of Global Warming Campaign (Global_Warming), London, London, Share global_warming s Profile. http//global_warming.wayn.com/ To view global_warming s friends, you need to be added to global_warming s friends list http://global_warming.wayn.com/

var profile_key = 11936025; var skin_color = '#0c1e47'; var skin_bg_color = '#3e819e'; var skin_link_color = '#acdbeb'; Home Account Club Profile ... Close You Can Help! Help us to make a difference. With every pledge you join thousands of others who are committing to small steps to help bring about change. Together we can significantly impact our affects on the environment so do your bit today! Global_Warming's Favorite Video Add this video to my profile Share Global_Warming's Profile http://Global_Warming.wayn.com/ Global Warming Videos Replanting Global_Warming's Friends To view Global_Warming's friends, you need to be added to Global_Warming 's friends list. See all friends Disable adverts Make a contribution towards regeneration projects each time you travel so that you offset your Carbon by investing your money in clean energy projects, industrial efficiency projects or the planting of trees. For more information, check out our carbon footprint profile, which includes a flight calculator to help you offset your carbon when you travel. Take your shopping bags back to the supermarket next time you shop saving energy and waste by reusing bags instead of accepting more disposable ones in each shop. Waste not only discharges CO2 and methane into the atmosphere, it can also pollute the air, groundwater and soil. Choose products that come with little packaging and buy refills when you can. You will also cut down on waste production and energy use!

20. Global Warming - Simple English Wikipedia, The Free Encyclopedia Retrieved from http//simple.wikipedia.org/wiki/global_warming . Categories Weather Energy. Hidden category Complex pages http://simple.wikipedia.org/wiki/Global_warming

Global warming From the Simple English Wikipedia, the free encyclopedia that anyone can change Jump to: navigation search The English used in this article may not be easy for everybody to understand. You can help Wikipedia by making this page or section simpler Global warming is a term regarding the gradual increase of the earth's temperature. Global warming may become a problem for the world and has already been linked to floods and other types of storms. Today, the atmosphere of the world is about a half a degree Celsius warmer than it was two hundred years ago. Many people want to know why the earth's climate is changing. Some say that the changes are caused by people themselves (by cars and factories , for example). Others say the change is natural and not the fault of humans. Global mean surface temperatures 1856-2004 The average temperature at the surface of the Earth has gone up by 0.6 Celsius since the late 19th century . There are several theories (ways) which try to explain this increase. Some scientists think that the warming of the last 50 years is believed to be a result of increases in the greenhouse effect caused by human-generated carbon dioxide (CO ). Others think that variations in the amount of heat from the sun and other natural causes may be the major cause.

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