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Lecture 1: The Science of Climate Change

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Uploaded by on Sep 3, 2009

Guest: William Collins, Senior Scientist and Department Head, Lawrence Berkeley National Laboratory; Professor in Residence, University of California, Berkeley

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LICENSE: Creative Commons (Attribution-Noncommercial-No Derivative Works).

For more information about this license, please read: http://creativecommons.org/licenses/by-nc-nd/3.0/.

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  • @iiooioooi you sure arent..

    greenman3610 channel has good videos debunking most of the arguments of deniars, including the "30 000" petition myth..

  • No one in the scientific community has a doubt about global warming. There have been many papers on the issue and 95% of them point to man made causes.

    The only doubt is whether climate change is ONLY man made. The sun plays a big role, but its not the only factor, neither is it one we can control by our actions. By adding on top of the solar activity, we can induce disasters.

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  • A rise in free carbon dioxide in the air is a biological impossibility, due to photosynthesis. Man made climate change is fiction designed to enhance the prospects for nuclear fission

  • Man ..look people Climate Change is real ..it's primarily man made due to fossil fuel use.Drink up all propaganda koolaid pumped out by Petro dollars you want.The scientific community is actually 97% in agreement on this ..the main area they do not completely agree is The Feedback Loops that are begining (melting polar ice) and the ones that will kick in if certain tipping points are reached. They agree these fedbacks will come into play.Just not when and how fast.and what effect they will have

  • something special here…

    

  • We are a part of nature, we respect nature, we respect ourselves.

  • 1000 year ago (settlers era) people where farming nicely here in Iceland and Greenland, no its hard in Iceland and stopped in Greenland. Temperature change, nothing is static!

  • @amet1980 you are too late.... climategate already prove the global warming is fraud... find me if anyone says those emails are clearly made up ... they just say they cant confirm ..... haha

  • Me too think well people who watch this i do agree with iiooioooi he's very smart to not say to doubt the planet to die there well be a smeel so bad that well go out of earth to the activity and kill earth so top that!

  • there are 30,000 Scientists Sign Petition on Global Warming.

    look for it.... im not scientist so i wont be so persuasive than them

    i mean, i miss spell on first comment. i know we should take care of the earth. but it seems to me that there are more political influence in this matter than scientific one.....

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