Good News? Scientists Reveal True Reason Behind Global Warming Slowdown
Ana Verayo | | Feb 28, 2015 09:09 AM EST |
(Photo : NASA) This image shows heat radiating from the Pacific Ocean as imaged by the NASA’s Clouds and the Earth's Radiant Energy System instrument on the Terra satellite. (Blue regions indicate thick cloud cover.)
Climate scientists say man-made global warming rates are indeed slowing down due to natural cooling cycles in the Pacific and Atlantic Oceans. This effect will most likely be reversed over the next few decades, however.
This slowdown doesn't mean the planet is cooling down, but scientists confirm the Earth is still warming but at a slower rate over the last 10 to 15 years. Other climate skeptics believe this event is just a hiatus or pause amidst the warming rates in an attempt to refute human caused climate change.
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Researchers describe this phenomenon as a "false pause" and that natural climate cycles found in the oceans will be reversed in the next decades and will bring back accelerated warming.
They then studied global temperature readings from the year 1880 to 2010 and analyzed them with climate models. They've concluded the slowdown is a result of large ocean circulation cycles known as multidecadal oscillations from the Pacific and the Atlantic.
These oscillations from the Pacific and Atlantic oceans can produce warming and cooling natural cycles of the ocean upper layers.
Researchers point out these cycles naturally cancel each other out. For example, when the north Pacific is warming, the north Atlantic is cooling and vice versa.
This effect offsets the impact on atmospheric temperatures but the cycles don't really match the timing and frequency.
During the last decade, the north Pacific has been cooling down on a larger scale as opposed to the warming in the north Atlantic that offset warming.
This only means there is still randomness in the climate system, according to lead author Byron Steinman who is a professor of environmental and earth sciences from the University of Minnesota.
This slowdown in global warming doesn't invalidate the continued burning of fossil fuels that increases the planet's surface temperature.
This study was published in the journal, Science.
TagsGood News? Scientists Reveal True Reason Behind Global Warming Slowdown, global warming slowdown, global warming hiatus pause slowdown, causes of global warming
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