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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Latest Articles

New Map of Global Ocean Temperatures Is a Work of Art
March 31st, 2015
A new global map of water surface temperatures is so visually stunning that it easily may be mistaken for art.
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Snow Melting 16 Days Earlier in Wyoming Mountains
Wind River Range
March 25th, 2015
The spring snowmelt comes more than two weeks earlier than it did in the 1970s in Wyoming's Wind River Range, a new study finds.
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Flat CO2 Emissions Not Enough to Curb Climate Change, Experts Say
March 19th, 2015
Global emissions of carbon dioxide stalled in 2014, marking the first time in 40 years that there was no climb in emissions during a time of economic growth. This suggests efforts to reduce emissions may be working, but experts say it's not that simple.
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Antarctica's Ice Shelves Are Thinning Fast
Antarctica's Brunt Ice Shelf.
March 27th, 2015
In West Antarctica, some ice shelves could melt away within a century.
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Does The United States Need a Science Laureate? (Op-Ed)
Neil deGrasse Tyson, science laureate
March 21st, 2015
Akin to the poet laureate position, the honorary one-year laureate appointment would give a respected scientist an official national platform to enhance the public understanding of science and attract students to STEM fields.
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Hidden Channels Beneath East Antarctica Could Cause Massive Melt
East Antarctica, Totten Glacier
March 18th, 2015
A glacier the size of California in East Antarctica is in danger of melting away, which could lead to an extreme thaw increases sea levels by about 11.5 feet (3.5 meters) worldwide if the glacier vanishes, a new study finds.
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Arctic Glacier Has Its Own Aquifer
March 11th, 2015
Isolated glaciers can store liquid water in their upper layers for years, similar to firn aquifers found in Greenland.
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Gorgeous Satellite Image Reveals Galloping Antarctic Glacier
Pine Island Glacier
March 25th, 2015
Pine Island Glacier in West Antarctica flowed about 325 feet (100 meters) between March 3 and March 15, 2015.
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Arctic Sea Ice's Winter Peak Is Lowest on Record
Arctic Sea Ice Peak
March 20th, 2015
Arctic sea ice hit its annual peak early this year, and climate scientists say the North's below-average ice conditions made this year's maximum extent the lowest on record.
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Arctic Sea Ice Dwindling Toward Record Winter Low
Air temperature anomaly map
March 12th, 2015
Winter is when Arctic sea ice reaches its peak extent, but this year it could set a record seasonal low.
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