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

Experts: Great Barrier Reef's Biggest Threat is Coal
A great butterfly fish, global warming
October 27th, 2014
Reef historian Iain McCalman, in Sydney, and reef scientist Stephen Palumbi, in California, are monitoring reef degradation from opposite sides of the planet. They compared notes.
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Hot News: 2014 On Track to Become Warmest Year
Temperature difference chart, global warming
October 20th, 2014
The "odds are good" that 2014 will be the warmest year in the books, fueled by record ocean warmth.
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Jet Flies Hot on the Heels of Biofuel-Burning Aircraft (Photo)
A NASA mission is using small jets to tail a larger aircraft and measure the emissions from different fuel types.
October 14th, 2014
A NASA mission is measuring biofuel emissions and contrail formation by flying jets directly behind a large aircraft.
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Climate Fixes Need Realistic Compromises (Op-Ed)
hawaii, hawai'i, rising sea level, climate change, global warming
October 24th, 2014
While scientists gather the ground truth about climate, it's up to lawmakers to do something responsible with it.
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Terrifying Tornado Clusters on the Rise
Tornado
October 16th, 2014
Tornadoes are touching down in clusters more often than 50 years ago.
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Surprise! Life Discovered Inside Deep-Sea Rocks
Towering carbonate rocks rise hundreds of feet off the seafloor at Hydrate Ridge off the coast of Oregon.
October 14th, 2014
Rocks found in the deep ocean near methane vents are teeming with microscopic life, new research finds. Microbes live in (and build) these rocks, surviving on the greenhouse gas methane seeping from below the ocean floor.
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Icebergs Sailed to Florida on Ice Age Floods
Iceberg scours
October 12th, 2014
Iceberg marks found offshore Florida suggest future ice sheet melting may be more complex that previously thought.
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Four Extreme Weather Changes and Why They're Happening Now
Glacier National Park
October 21st, 2014
Weather extremes, from intense rains in the western United States to flooding in the northeast, are directly tied to a warming climate.
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Climate Change an 'Immediate Risk,' Pentagon Says
Army national guard searching for explosive devices.
October 15th, 2014
The U.S. Department of Defense released a new report Oct. 13 that says climate change poses an "immediate risk to national security." The so-called road map is designed to help the military navigate and prepare for increasing global temperatures.
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September Was Warmest on Record, NASA Data Shows
Temperature anomalies map, global warming, climate change
October 13th, 2014
September 2014 was the warmest September since 1880, update NASA data shows.
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