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Miky Ruiz

Science | Climate Change | U.S. EPA - 0 views

www.epa.gov/...index.html

climate u s science Global Warming

shared by Miky Ruiz on 23 Apr 12 - Cached
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  • This section offers scientific information and data on climate change in the past and projections for the future. Specific information about the U.S. government's role in conducting and evaluating science as well as EPA's role in these efforts can be found on the U.S. Global Change Research Program and EPA Research and Assessment pages in the Policy section.
  • Climate change refers to any significant change in measures of climate (such as temperature, precipitation or wind) lasting for an extended period (decades or longer). For full definitions of "climate change" and "global warming," see the Basic Information page.
  • Energy from the Sun drives the Earth's weather and climate. The Earth absorbs energy from the Sun, and also radiates energy back into space. However, much of this energy going back to space is absorbed by “greenhouse” gases in the atmosphere (see Figure 1 of Greenhouse Effect). Because the atmosphere then radiates most of this energy back to the Earth’s surface, our planet is warmer than it would be if the atmosphere did not contain these gases. Without this natural "greenhouse effect," temperatures would be about 60ºF lower than they are now, and life as we know it today would not be possible.
  • Miky Ruiz on 23 Apr 12
     
    This website has basic information on the scientific part of Global Warming and Climate Change.
Samantha Aragon

Global Warming Interactive, Global Warming Simulation, Climate Change Simulation - Nati... - 0 views

environment.nationalgeographic.com/...gw-overview

warming global Research global warming climate change what interactive is

shared by Samantha Aragon on 23 Apr 12 - Cached
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    • javier miguel
      javier miguel on 23 Apr 12
       
      This is a deffinition of the green house effect.
  • The rapid rise in greenhouse gases is a problem because it is changing the climate faster than some living things may be able to adapt. Also, a new and more unpredictable climate poses unique challenges to all life.
  • What Is Global Warming?
  • axel rivera on 23 Apr 12
     
    The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere trap heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, where it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, "greenhouse" gases trap some of this heat, and the rest escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped. Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate livable. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. In 1895, the Swedish chemist Svante Arrhenius discovered that humans could enhance the greenhouse effect by making carbon dioxide, a greenhouse gas. He kicked off 100 years of climate research that has given us a sophisticated understanding of global warming.
  • Samantha Aragon on 23 Apr 12
     
    science of global warming
Darth Cycy

NASA - NASA Study Predicts More Severe Storms With Global Warming - 0 views

www.nasa.gov/...moist_convection.html

environment warming storms nasa global warming

shared by Darth Cycy on 30 Apr 12 - Cached
  • Previous climate model studies have shown that heavy rainstorms will be more common in a warmer climate, but few global models have attempted to simulate the strength of updrafts in these storms. The model developed at NASA’s Goddard Institute for Space Studies by researchers Tony Del Genio, Mao-Sung Yao, and Jeff Jonas is the first to successfully simulate the observed difference in strength between land and ocean storms and is the first to estimate how the strength will change in a warming climate, including “severe thunderstorms” that also occur with significant wind shear and produce damaging winds at the ground. This information can be derived from the temperatures and humidities predicted by a climate computer model, according to the new study published on August 17 in the American Geophysical Union’s Geophysical Research Letters. It predicts that in a warmer climate, stronger and more severe storms can be expected, but with fewer storms overall.
  • Darth Cycy on 30 Apr 12
     
    A definite Result of Global Warming.
Fermina Arguello

Global Warming- Science - The New York Times - 0 views

topics.nytimes.com/...index.html

globalwarming

shared by Fermina Arguello on 16 Apr 12 - Cached
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  • Global warming has become perhaps the most complicated issue facing world leaders. Warnings from the scientific community are becoming louder, as an increasing body of science points to rising dangers from the ongoing buildup of human-related greenhouse gases — produced mainly by the burning of fossil fuels and forests.
  • In mid-February 2012, Secretary of State Hillary Rodham Clinton was expected to announce a new international effort focused on reducing emissions of common pollutants that contribute to rapid climate change and widespread health problems.
  • The United Nations conference on climate change in Cancún, Mexico, produced only modest achievements but ended with the toughest issues unresolved. The package that was approved, known as the Cancún Agreements, set up a new fund to help poor countries adapt to climate changes, created new mechanisms for transfer of clean energy technology, provided compensation for the preservation of tropical forests and strengthened the emissions reductions pledges that came out of the U.N. climate change meeting in Copenhagen in 2009.
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  • At the 2011 conference delegates from about 200 nations gathered together in Durban, South Africa. One of the issues left unresolved was the future of the Kyoto Protocol, the 1997 agreement that requires major industrialized nations to meet targets on emissions reduction but imposes no mandates on developing countries, including emerging economic powers and sources of global greenhouse gas emissions like China, India, Brazil and South Africa.
  • In December 2011, the European Union’s highest court endorsed the bloc’s plan to begin charging the world’s biggest airlines for their greenhouse gas emissions from Jan. 1, 2012, setting the stage for a potentially costly trade war with the United States, China and other countries.
  • Airlines for America, an industry lobby group and one of the plaintiffs in the case, said that its members would be required to pay more than $3.1 billion to the E.U. between 2012 and 2020. It said its members would comply with the system “under protest,” but would also review options for pursuing the case in Britain’s High Court, which had referred the original complaint to the European court in 2009.
  • The United States has been criticized at the United Nations gatherings for years, in part because of its rejection of the Kyoto framework and in part because it has not adopted a comprehensive domestic program for reducing its own greenhouse gas emissions. President Obama has pledged to reduce American emissions 17 percent below 2005 levels by 2020, but his preferred approach, a nationwide cap-and-trade system for carbon pollution, was passed by the House in 2009 but died in the Senate the next year. United States emissions are down about 6 percent over the past five years, largely because of the drop in industrial and electricity production caused by the recession.
  • In March 2012, the E.P.A. unveiled a draft rule that would limit carbon dioxide emissions from new power plants to 1,000 pounds per megawatt-hour.
  • To open an avenue to companies still planning to build coal plants, for example, the E.P.A. said it would allow new ones to begin operating with higher levels of emissions as long as the average annual emissions over a period of 30 years met the standard.
  • Scientists learned long ago that the earth’s climate has powerfully shaped the history of the human species — biologically, culturally and geographically. But only in the last few decades has research revealed that humans can be a powerful influence on the climate, as well.  
  • That conclusion has emerged through a broad body of analysis in fields as disparate as glaciology, the study of glacial formations, and palynology, the study of the distribution of pollen grains in lake mud. It is based on a host of assessments by the world’s leading organizations of climate and earth scientists.
    • sabrina jubis
      sabrina jubis on 16 Apr 12
       
      Human gas emissions conferences to decrease climate change and global warming
  • human-related greenhouse gases — produced mainly by the burning of fossil fuels and forests.
  • human-related greenhouse gases — produced mainly by the burning of fossil fuels and forests.
  • 194 countries to cooperatively discuss global climate change and its impact.
  • Emissions rose 5.9 percent in 2010, according to the Global Carbon Project,
  • Global warming has become perhaps the most complicated issue facing world leaders. Warnings from the scientific community are becoming louder, as an increasing body of science points to rising dangers from the ongoing buildup of human-related greenhouse gases — produced mainly by the burning of fossil fuels and forests.
  • Miky Ruiz on 16 Apr 12
     
    Here is information of Global Warming and Climate change. Also here are some descusions and decision made about climate change and global warming.
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  • Mario Escalante on 23 Apr 12
     
    Global Warming is one of the most importants because the ice in the poles are starting to melt and this can led to very big tsunamis and floods can start to happen
  • dany sofia on 23 Apr 12
     
    The average surface temperature of earth has increased more than 1 degree Fahrenheit since 1900 and the rate of warming has been nearly three times the century-long average since 1970. Almost all experts studying the recent climate history of the earth agree now that human activities, mainly the release of heat-trapping gases from smokestacks, tailpipes, and burning forests, are probably the dominant force driving the trend.
  • diana monge on 23 Apr 12
     
    global waming 
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