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: 4.405155
Vistas: 297729


Video Url:

Para insertarlo en tu sitio:
Ultimos comentarios:
J Scott Upton (el 25/06/14 a las 3:44 am)
Wow. This video is just full of mis information.
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?
william stockton (el 26/06/14 a las 1:47 am)
The fact is that the planet is in a warming trend. So what? The planet has been heating and cooling from the beginning. Where this video crashes off the rails is when the narrator says "climate scientist BELIEVE" it is caused by CO2. Modern day religion for them that want to control you with fear. Yep. All you fossil fuel burners are GUILTY and will pay with your lives burning in the global warming hell you created!
Sexzessiv (el 11/06/14 a las 4:35 am)
Gosh, you are all so stupid idiots, even the scientists who discuss about co². We had higher concentration in the past and all it will do is speeding up the growth of plants. But what we also have is the second law of thermodynamics. So now start to think How many bulbs, cars, electronics, machinery and whatever else does constantly produce heat on earth every day? Trillions! It's the same like you put a self heating hot stone into a tank with cold water, at some point in the future the water will have the same temperature as the stone. I can promise you that. We heat up earth's atmosphere because of the constant use of energy to run our toys. That's all, not a miracle or magic nor unbelievable powers of gases just simple physic. That's also the reason why northern hemisphere warms faster up than soutern hemispere, because of more people in the northern hemisphere. And what do more people use? More energy to run more heat producing devices Think about it, no one ever claims that as a source for global warming.
deathbylife3sAnD7s (el 24/05/14 a las 7:00 am)
If meteorologists can't even get the seven week weather forecast right, why would people depend on them to predict the weather 20-30 years in the future? 
rota cetle (el 20/06/14 a las 1:42 am)
Maybe we should just blow the Earth out of existence. Problem solved, no globe no global warming.
Dolphfren (el 11/05/14 a las 12:16 pm)
What a load of shit. I recently read an interesting article about colonizing Mars. The article also had a video 3 min in the video it was talking about how we had the technology to scrub the Mars atmosphere to have acceptable levels of carbon dioxide aka co2. If we can scrub Mars atmosphere to have acceptable levels of co2 why are we not doing here if this global worming shit is such a problem.
Jim Ainoris (el 17/05/14 a las 6:54 pm)
So goofy to politicise science into lefty righty hype...40% more co2 in air now than 100yrs ago...ocean temps higher many cars trains planes factories home heating boilers tractors ships people were around 100yrs ago versus now?..yet lush dimbaugh who is paid by koch bros says pollution is good and science is goofy can the public be to not think about what we are doing to our all the scientists are in a liberal conspiracy around the world....
3MonkeesInDenial (el 11/05/14 a las 11:36 am)
The reason so many people fall for Denialism is they weren't taught science or how to think in school. They never learned how to function outside of a mob as an autonome individual.
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.

Videos sobre la #globalrevolution
Una recopilación de SuperPataNegra y eL PasaTiempo