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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Why Climate Change Won't Intensify Extreme Snowstorms
Glacier National Park
August 27th, 2014
Even though ferocious snowstorms will become more frequent this century, their intensity will stay the same.
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Has Earth's Missing Heat Been Found?
This photo from NASA's Suomi NPP satellite shows the Eastern Hemisphere of Earth in "Blue Marble" view.
August 21st, 2014
A new study suggests a natural climate cycle in the North Atlantic gobbled Earth's extra heat, putting global warming on pause.
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Antarctic Riddle: How Much Will the South Pole Melt?
Antarctic glacier, global warming, climate change, ice melt
August 25th, 2014
Improved climate models suggests melting in Antarctica will be worse this century than we had realized.
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What's Melting Arctic Ice? NASA Investigates Clouds
Arctic Sea Ice
August 22nd, 2014
Arctic sea ice is melting fast, having lost about 1 million square miles since the 1970s, but experts are still figuring out what factors, such as cloud cover, are speeding or slowing the ice's demise.
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Hot and Getting Hotter: Heat Islands Cooking US Cities
planet, planets, round, why, sphere, spheres, spherical, bulge
August 21st, 2014
Since 1970, cities have been warming, and have been getting hotter far faster than adjacent rural areas
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Humanity's Longest-Lasting Legacy: Miles of Holes
August 25th, 2014
Human activity underground is permanently changing the Earth, and some geologists see it as more evidence the planet has entered a new epoch called the Anthropocene.
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These Adorable Fur Balls Survived a Raging Forest Fire
pika
August 19th, 2014
Pint-size pikas survived Oregon's Dollar Lake fire, providing new insight into their resiliency to environmental change.
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