Launchpad: Global Warming - How Humans are Affecting Our Planet

[TheMaja12345]

Speak a little bit faster.

[Oldbirth]

nut...........................­.........

[Oldbirth]

nali.............

[david222444]

This is irresponsible man made Global warming is not a proven theory. According to satellite data the troposphere is 0.7 degrees celcius cooler than this day last year. The Pacific Ocean is cooling due to natural cycles . Ice sheets are growing. How was the winter for you?

[centerM87]

A widely-discussed proposal for countering warming with geoengineering involves injecting small, reflective particles into the upper atmosphere. This would partially block incoming sunlight before it reached the Earth's surface, lowering global temperatures just as volcanic ash from the Mount Pinatubo did following its eruption in 1991. But critics have warned that such a scheme might also alter rainfall patterns, damage the planet's ozone layer, or have other unexpected

[Vivaciouspnaii]

Just another way for the government to make money by taxing us somemore.

[voteDRNO]

B U L L S H I T !

the planet is getting colder! The earth temp goes up and down at the same rate as mars, why is that?

[tangvald]

I cannot believe how americans are so selfish, they go into denial when it comes to adjust there horrible lifestyles, is it more important the raise of taxes than to do something for the planet?!!!! such morons!!, they are the first to go!, they will not know how to survive...

[voteDRNO]

are americans causeing the planet of Mars temp. change as well?

[SimeoneZone]

I call bullshit again... and again... We can do that stuff without being taxed and charged to death...

[robertg222]

NO because gravity and evolution are real. They exist outside of computer models unlike the global warming scam.

[robertg222]

Hanses is the biggest liar that isn't a politician. Of course the fact that he is a friend of the biggest liar, Al Gore, says it all. Hansen is a disgrace to America and NASA.

[curingaging00]

Al Gore is a huge disgrace to america.

[ebaumann05]

More people, more problems! Only solution to world problems is to decrease population!

[nobodyzsukey]

SWEET. Very well done. Thank you.

[BxHxKx0x]

INTERHIGH!

[basketballsmc]

If you want to know ways to reduce global warming go to my channel and you will know how you can help! Thanks!

[TRUMPHENT]

Excellent video! Dr. Hansen is a national treasure.

[nubeldorf]

The global warming computer models mean nothing. Even short-term predictions have been off. James Hansen, NASA (so called)scientist, predicted a 0.45-degree Celsius (0.81-degree Fahrenheit) rise in global temperature from 1988 to 1997. But in reality (a place environmental activists rarely visit) the increase was a mere 0.11-degree Celsius.

Now in 2009 average temptures have dropped back to what they were in the 70's.

[TRUMPHENT]

We defer to your scientific expertise and vast wealth of knowledge, data sets and excellent models. You obviously will also take issue with the recent study released by MIT, The MIT Intergrated Global System Model. One sentence from you will invalidate it for the world. Wave your magic wand over your keyboard and your will be done.