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. 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.
Explore Global Warming
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- Orwellian or Green? Carbon Taxes on Individuals
- Carbon taxes have been aimed at individuals and businesses. Which is better?
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- Hawaii's Beaches Shrinking
- A fourth of Oahu's sandy shores have disappeared.
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- Record Highs Outpace Record Lows
- Daily record high temperatures occurred twice as often as record lows over the last decade.
More Global Warming News and Information
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Melting Glaciers Behind Mysterious Increase in Pollution
Climate change may release more pollution into lakes and rivers.
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Planet Power
Sustainable energy technologies: How they work and where they come from.
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The Electric InterGrid - Why A Smart Power Grid is Essential

America's electric infrastructure is undergoing a massive make-over. To save energy and cut carbon, it must develop Internet-style intelligence. Part 1 of 2
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How the Power Grid Gets Smart: The Electric InterGrid Pt.2

To create an Internet-style power system, every electric device has to learn when to listen and how to talk to every other device on the grid. Part 2 of 2
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Arctic Poised to be Open Sea
Arctic ocean could be ice free in 30 years.
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Dead Zones Doubling Every Decade
Scientists say dead zones are on the rise.
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Underground City Envisioned in Nevada
A new design concept imagines how communities can cope with climate change.
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6-foot Sea-level Rise Called Inevitable
Even if emissions are stopped, the rise will occur.
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Pollution Travels the Globe, Study Confirms
Pollution in other countries can affect the air quality in your neck of the woods.
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Fanged Frog and Other Bizarre Species Discovered
Just discovered last year in Asia, various species face extinction, report says.
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Recession Causes Steep Fall in CO2 Emissions
Global recession causes largest decline in emissions in last 40 years.
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Invention Captures Carbon Dioxide Emissions
Researchers have shown the benefits of a new approach to eliminate carbon-dioxide emissions at coal-burning power plants.
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Sea Stars Grow Faster as Water Warms
Climate change gives rise to monster sea stars.
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Ships Poised to Make First Arctic Ocean Crossing
Two German ships are set to make the first true passage of the Northeast Passage.
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Powerful Ideas: Reducing China's Carbon Emissions a Breeze
China is now the world's largest producer of carbon dioxide, the most important global warming pollutant.
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Arctic May Be Changed Forever, Study Finds
Study documents ecosystem-wide changes to global warming across Arctic.
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POLL: Are Humans Causing Global Warming?
What do you think of the latest evidence?
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FAQ: The Science and History of Wildfires
Learn what's behind the current blazes in Southern California.
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Why Pacific Hurricanes Hit the Americas So Rarely
Conditions in the Atlantic favor landfalling hurricanes, while those in the Pacific keep storms away from land.
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Lights Out for Traditional Bulbs
The European Union begins its ban on certain incandescent light bulbs.
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Fake Trees Could Combat Global Warming
Engineers propose a forest of 100,000 fake trees to soak up carbon emissions.
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