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NASA | Earth Science Week | How is the Global Earth ...



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Earth is currently in a period of warming. Over the last century, Earth's average temperature rose about 1.1 F (0.6C). In the last two decades, the rate of our world's warming accelerated. Scientists predict that the globe will continue to warm over the course of the 21st century. Is this warming trend a reason for concern? After all, our world has witnessed extreme warm periods before, such as during the time of the dinosaurs. Earth has also seen numerous ice ages on roughly 11,000-year cycles for at least the last million years. So, change is perhaps the only constant in Earth's 4.5-billion-year history.
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Tags for this video: caps center change claire climate earth flight global goddard ice nasa polar science space temperature tv warming week

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that's hot ( 2 months ago by bballaman92)
that's hot
maybe the magnetic ... ( 2 months ago by wade2bosh)
maybe the magnetic poles r gonna shift like they did in venus
well the earth does ... ( 2 months ago by stillett12343)
well the earth does turn over 1000 miles per hour in the space system around the sun Unknown to man kind the sun also is moving around the earth a ( continuum ),
out of the whole situation the earth to describe floats like a water bottle really slowly In fact so slow that the north pole was created!
like the top of a ... ( 2 months ago by stillett12343)
like the top of a bottle their is always a shadow against the sun and the ice would act as a float like they use in fishing pulling the world to an angle creating a mass of ice.
Turn up the A/C! ( 2 months ago by TmsT)
Turn up the A/C!
Current trends show ... ( 2 months ago by int3rl0per)
Current trends show an anomalous increase in temperature over the entire Northern hemisphere.
Unless the rate of change decreases, weather conditions will become unpredictable and potentially hazardous. It's not getting better, which is why the thing to do is to stop increasing the releases of CO2 and NOx into the atmosphere. Simplified, this means not burning more oil than absolutely necessary and not investing in new oil-based infrastructure.
Array ( 2 months ago by int3rl0per)
1) Do not panic.
2) Stop unnecessary releases of COx and NOx
2.1) More nuclear, less coal based power (also, coal actually releases MORE radioactive materials into the environment than nukeplants)
2.2) Supplement existing energy infrastructure with wind, tidal, solar and geothermal energy production
3) Don't make new infrastructure dependent on oil or natural gas (makes sense both economically and environmentally)
4) Stop burning stuff (waste, etc) without filtering the smoke.
Hey idiot.There is ... ( 2 months ago by epik78)
Hey idiot.There is no evidence that the sun is causing the heating.There is also no proof that the global warming is caused by man.There are evidence,but no proof.So until we find out shut up.We all know that your opinion is based on some 10 min documentary you once watched.Idiot.
It is true that the ... ( 2 months ago by epik78)
It is true that the Antartic ice cap is growing but that doesnt mean the sun has anything to do with it
I always wanted it ... ( 2 months ago by drumgroovy)
I always wanted it in the way of zombies or the Sun dying... this is a lame way to end.
perhaps the ... ( 2 months ago by archaedemos)
perhaps the magnetic poles are about to change.
doesn't it seem to happen ever 10-25 k yrs or so.?
where is the top? ... ( 2 months ago by archaedemos)
where is the top? from space, top is anywhere
According to the ... ( 2 months ago by NASAexplorer)
According to the producer of the video, the music is called "Feelgood," which is from the Apple Soundtrack/Garage Band library.
Hope this helps!
Stefanie
And there is no ... ( 2 months ago by Auriex)
And there is no proof of gravity either, only evidence. Lots, and lots...and lots of evidence.
i love these vids :D ( 2 months ago by dynamics)
i love these vids :D
Array ( 2 months ago by bjkimber86)
Shut Up? Nice...
Thousands of real scientists disagree with you and your environmentalist religion. Try getting your science from something other than a politically charged documentary.
LOL ( 1 month ago by catchersmitt0)
LOL
The video correctly ... ( 1 month ago by grastog1313)
The video correctly points out that the Arctic icecap (sea ice) has been shrinking - due mainly to CO2-driven warming but also to local wind and ocean patterns. Antarctic sea ice has shown no similar trend, but most Antarctic ice is on land, and the overall pattern is one of ice loss, as shown by the GRACE satellite measurements, again consistent with the overall global warming trend. Current concerns relate to more severe future warming due to rapid increases in atmospheric CO2 concentrations.
Re: Black Holes, ... ( 1 month ago by iugrehc)
Re: Black Holes, Neutron Stars, White Dwars, Space and Time
The global warming ... ( 1 month ago by eric19611)
The global warming scientific community is a politically, research money, alarmist driven bunch of ideologues bent on destroying western conservative capitalist society.
Great job. Keep at ... ( 1 month ago by TonyTuthill)
Great job. Keep at it, NASA! Help support micro wind,solar,hydro turbine with Grid-Tie Inverter technology in Wal-Mart sized products! Support EM Harvesters for homes! If External Plasma Propulsion is feasable now, lets apply that thinking to down home.
how can data from ... ( 1 month ago by videochick770)
how can data from satellites be "religious"? it is observable data.
It's not religious. ... ( 1 month ago by bjkimber86)
It's not religious... this data being twisted/misinterpreted for a false belief is what is "religious" in nature.
Using big fancy ... ( 2 weeks ago by afthefragile)
Using big fancy words doesn't make your statement any more valid than saying the earth is flat.



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