Global Warming Facts



El video: ... NASA Global Warming Facts: 2009 - Second Warmest Year on Record; End of Warmest Decade --- Please SUBSCRIBE to Science & Reason: • --- Global climate change ... NASA's eyes on the Earth: A warming world - global temperature update ... piecing together the temperature puzzle. Each year, scientists at NASA'S Goddard Institute for Space Studies analyze global temperature data. The past year, 2009, tied as the second warmest year since global instrumental temperature records began 130 years ago. Worldwide, the mean temperature was 0.57°C (1.03°F) warmer than the 1951-1980 base period. And January 2000 to December 2009 came out as the warmest decade on record. • --- 2009 was tied for the second warmest year in the modern record, a new NASA analysis of global surface temperature shows. The analysis, conducted by the Goddard Institute for Space Studies (GISS) in New York City, also shows that in the Southern Hemisphere, 2009 was the warmest year since modern records began in 1880. Although 2008 was the coolest year of the decade, due to strong cooling of the tropical Pacific Ocean, 2009 saw a return to near-record global temperatures. The past year was only a fraction of a degree cooler than 2005, the warmest year on record, and tied with a cluster of other years — 1998, 2002, 2003, 2006 and 2007 1998 and 2007 — as the second warmest year since recordkeeping began. "There's always an interest in the annual temperature numbers and on a given year's ranking, but usually that misses the point," said James Hansen, the director of GISS. "There's substantial year-to-year variability of global temperature caused by the tropical El Niño-La Niña cycle. But when we average temperature over five or ten years to minimize that variability, we find that global warming is continuing unabated." January 2000 to December 2009 was the warmest decade on record. Throughout the last three decades, the GISS surface temperature record shows an upward trend of about 0.2°C (0.36°F) per decade. Since 1880, the year that modern scientific instrumentation became available to monitor temperatures precisely, a clear warming trend is present, though there was a leveling off between the 1940s and 1970s. The near-record temperatures of 2009 occurred despite an unseasonably cool December in much of North America. High air pressures in the Arctic decreased the east-west flow of the jet stream, while also increasing its tendency to blow from north to south and draw cold air southward from the Arctic. This resulted in an unusual effect that caused frigid air from the Arctic to rush into North America and warmer mid-latitude air to shift toward the north. "Of course, the contiguous 48 states cover only 1.5 percent of the world area, so the U.S. temperature does not affect the global temperature much,' said Hansen. In total, average global temperatures have increased by about 0.8°C (1.5°F) since 1880. "That's the important number to keep in mind," said Gavin Schmidt, another GISS climatologist. "In contrast, the difference between, say, the second and sixth warmest years is trivial since the known uncertainty — or noise — in the temperature measurement is larger than some of the differences between the warmest years." Decoding the Temperature Record: Climate scientists agree that rising levels of carbon dioxide and other greenhouse gases trap incoming heat near the surface of the Earth and are the key factors causing the rise in temperatures since 1880, but these gases are not the only factors that can impact global temperatures. • .

Canal: News & Politics
Subido: 23/05/10 a las 4:22 pm
Autor: Best0fScience

Duración: 03:29
Valoración: 4.3934836
Vistas: 333926


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Notrogemaz Boom (el 08/08/14 a las 1:24 pm)
Please help us out, were working on the global warming and surveys really helps us, in this survery there are only 2 questions, that wont take more than a minute, but will mean litteraly the world to us, please help us.
Billy Staggs (el 08/04/15 a las 4:10 am)
Global Warming / Cooling, Climate Change is all bullshit. At least the media sensationalized and politicized Climate Change is. It's all about money. Follow the money, people! Ever notice how it's cold... media will completely ignore any kind of cooling around the world, but when it's hot... the fear mongers, sheep and media is all over it, preaching "It's climate change, yadda, yadda, yadda." It's bullshit. The data that you see is bullshit to. It's a bunch of noise made to look like we're living in the hottest time ever.
satyagraha a (el 06/03/15 a las 9:24 pm)
the current economic model depends on growth. Without growth it simply collapses. China has to grow at an insane 7% per year to just to avoid social chaos. How do you stop a system that depends on the exploitation of finite resources and the burning of fossil fuels? you can't. This system is like a monster with a mind of its own, with so many complicated components that stoping it becomes almost impossible. The near future does not look good. Many of the effects of climate change cannot be stopped and it is already too late. The correct thing is the keep trying, but can you convince Shell oil to stop drilling and go out of business when the entire corporate model is to simply turn a profit at the end of the quarter? no way. Get ready for a rough ride in the next 20 years. Beyond that, survival of the fittest. (if survival is even possible) 
21dolphin123 (el 13/01/15 a las 12:46 pm)
is this good science ,,,,,,
ROGER2095 (el 09/08/14 a las 4:20 pm)
If the Earth is over 3 billion years old, and you measure between the 1880's and now to determine a "warming trend," then (2014-1880)/3,000,000,000 * 100 = 0.00000046%. That is, you're using 4.6 millionths of 1 percent of total time to determine a "warming trend." That ain't science, kid. We actual scientists would be extremely charitable in calling that "insufficient data." And you don't make decisions or conclusions based on insufficient data.
the Annuity Slayer (el 19/12/14 a las 7:08 am)
This video is pure deception. No mention of the fact that 100 years is a blink of an eye in geological terms. No mention of the fact that temperature data extracted from ice core samples indicates that temperatures have been fluctuating all over the map for as far as we can look back (400,000 years). I think it's a ploy to raise our taxes and Libertards are lapping it up.
Mikail Bölgen (el 03/01/15 a las 12:34 pm)
Is it really there is an global warming on earth or it is a pshygolocical war system within Nato and Varşova? Earth become sometimes to the timeline of ice age.?..Do we really go to other planet if this earth become a bad place...? if human being make love and more children from each if really earth become a hell place or it is a war thinking system in each human being to make other race do not make him or her a baby each other
Aanthanur DC (el 15/07/14 a las 2:43 pm)
+juggalo2112 and what caused the last deglaciation? and what feedback amplified the initial warming so all the ice could melt?
Mike Mhentges (el 22/01/15 a las 8:59 pm)
One word. Cycle!!!!
Locke Cole (el 25/03/15 a las 9:33 pm)
wanna end global warming? youtube bill mollison global gardener the dry lands. and greening the desert. if your stuck in the city then youtube Ron Finley guerrilla gardener in L.A. add urben exploring, permaculture and john poole military tactics (applied to gardening just like sun tzu) if you think government is the answer start pressuring the land management to stop killing the wild horses and selling them as dog food and instead restore the land like Joel Salatin (lunatic farmer) making it a giant carbon sink in the great plains. 

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