Global Warming: News, Facts, Causes & Effects

Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate. There is great debate among many people, and sometimes in the news, on whether global warming is real (some call it a hoax). But climate scientists looking at the data and facts agree the planet is warming. While many view the effects of global warming to be more substantial and more rapidly occurring than others do, the scientific consensus on climatic changes related to global warming is that the average temperature of the Earth has risen between 0.4 and 0.8 °C over the past 100 years. The increased volumes of carbon dioxide and other greenhouse gases released by the burning of fossil fuels, land clearing, agriculture, and other human activities, are believed to be the primary sources of the global warming that has occurred over the past 50 years. Scientists from the Intergovernmental Panel on Climate carrying out global warming research have recently predicted that average global temperatures could increase between 1.4 and 5.8 °C by the year 2100. Changes resulting from global warming may include rising sea levels due to the melting of the polar ice caps, as well as an increase in occurrence and severity of storms and other severe weather events.
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With Climate Change, Wildfires Getting Worse in the West
Las Conchas Fire
April 18th, 2014
Across the West, wildfires grew bigger and more frequent in the past 30 years, according to a new study that blames climate change and drought for the worsening flames.
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Frigid Winter? Blame 4,000 Years of Wild Jet Streams
Jet stream
April 16th, 2014
The jet stream's plunging pattern is a long-standing natural phenomenon. However, new findings also suggest that global warming may boost the frequency or intensity of the curves, which would mean more extreme winter weather in the United States and Canad
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Bright Idea or Shady Scheme? Cosmetic Company Wants to Lighten Moon
The dazzling full moon sets behind the Very Large Telescope in Chile's Atacama Desert in this photo released June 7, 2010 by the European Southern Observatory. The moon appears larger than normal due to an optical illusion of perspective.
April 18th, 2014
A think-tank associated with a cosmetics company has a plan to brighten the surface of the moon in an effort to lighten up the night sky and reducing the need for electricity to run street lights. Scientists are skeptical.
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Arctic Sea Ice Peak Is 5th Lowest on Record
Arctic sea ice
April 7th, 2014
Arctic sea ice hit its annual peak on March 21. It was the fifth-lowest maximum extent since 1979.
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Is Global Warming a Giant Natural Fluctuation? (Op-Ed)
climate change, global warming, lightning, CA, Alabama HIlls
April 18th, 2014
Natural fluctuations have driven Earth's climate for millennia, but they are not the cause of modern warming.
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Old as Dirt: 2.7-Million-Year-Old Soil Found Under Ice
Greenland glacier
April 17th, 2014
More than 10,000 feet below Summit, the highest point of Greenland's Ice Sheet, is a soil born before humanity's ancestors ever walked on Earth.
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Salamanders Shrink as Climate Heats Up
An image of a salamander
April 11th, 2014
Rising temperatures are affecting the size of salamanders in the Appalachian Mountains.
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