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Global Warming Scientists and 5 Facts That Are Routinely Disputed

Image: Global Warming Scientists and 5 Facts That Are Routinely Disputed
Calved icebergs from the nearby Twin Glaciers are seen floating on the water on July 30, 2013 in Qaqortoq, Greenland. (Joe Raedle/Getty Images)

By    |   Sunday, 26 Oct 2014 12:34 PM

Climate scientists are sharply divided on the issue of manmade global warming. Here are five facts that are routinely disputed.

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1. Arctic glacier melting is caused by man-made global warming.

The International Institute of Climate Change and dozens of climate scientists say global warming has contributed to the volume of Arctic Sea ice being reduced by half from 1984 to 2012. However, numerous studies have found the arctic melting is part of the Earth’s natural climate cycle and is not proof of manmade global warming, Climate Depot notes. Earlier this year, NASA said the level of ice melt was not a record low.

2. A warming planet is causing California’s most severe drought in decades.
Global warming scientists maintain that decreased rainfall and declining winter snowpack in the Sierra Nevada Mountains is caused by global warming and has led to California’s most severe drought in decades. In 2013, California received less precipitation than in any other year since 1950, when it became a state. However, meteorologist and global warming skeptic Anthony Watts says that climate models used to link the drought conditions with manmade global warming are not realistic representations of climate in the eastern North Pacific.

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3. Antarctic ice shelves are breaking apart because of manmade global warming.
Antarctica has seen several ice shelves “calve,” or break in two, in recent years. In 2013, an iceberg about 22 by 12 miles long split from the Pine Island Glacier. Climate scientists have said such Antarctic “shelving” is symptomatic of reduced global sea ice. However, Climate Depot reported in December of 2013 that levels of global sea ice were actually at their highest level in 25 years. In May 2014, Real Science reported that global sea ice levels continued to expand at were at their highest in 32 years.

4. Carbon dioxide emissions are contributing to a warming planet.
Conventional environmental science and the U.S. Environmental Protection Agency report that high carbon dioxide levels emitted from cars and factories are contributing to a breakdown in the atmosphere, thereby heating up the planet. However, some scientists say there is no proof that CO2 is causing climate changes or is bad for the planet. PlantsNeedCo2.org cites multiple articles finding that CO2 changes have lagged temperature changes throughout history.

5. Earth is warming.
According to NASA, September 2014 was the warmest September globally since 1880, when recordkeeping began. NOAA projections have 2014 on track to be the hottest year on record, and global warming scientists have found that the Earth’s average surface temperature rose by 1.3 degrees Fahrenheit since 1880, with two-thirds of the warming taking place since 1975. However, FriendsofScience.org says parts of the temperature-recording network is based in warmer urban areas, and that the "mild warming" over the 20th century is within natural planet temperature variations recorded over time.

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Climate scientists are sharply divided on the issue of manmade global warming. Here are five facts that are routinely disputed.
global warming, scientists, facts, disputed
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2014-34-26
Sunday, 26 Oct 2014 12:34 PM
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