Comments 1 to 9:

1. bill at 09:41 AM on 18 March, 2013

   As usual it's a good little video, but, frankly

   I'd like to speak to you about global warming, and about what we all can do to make an impact, to help protect our planet and to save our planet

   from Kucinich is utterly unremarkable, unless one is indulging in an absurd level of pedantry - I mean hell, remember all those people who claimed they were going to 'feed the world' back in the 80's; that wasn't true, now was it?

   Certainly Kucinich's comment does not much resemble the characterization of it that follows.

   Sure, fears of Di-hyrdogen Monoxide and boiling oceans are fair-enough as targets,  but if we're going to lump everyone who wants to 'save the planet' from global warming in with the 'God won't let this happen' and 'it's arrogant to believe we could change anything' brigade our chances of solving the problem begin to approach zero to an even greater extent than they currently do!

   I suspect this is a good example of the perils of 'balance'.

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2. ubrew12 at 11:23 AM on 18 March, 2013

   Bill @1: I thought the same.  An attempt at balance, but Hadley felt a need to finger wag at those who use the term 'save the planet' as if that was what was at risk (the planet is not at risk, we, specifically our civilization, are at risk).

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3. bill at 12:22 PM on 18 March, 2013

   ubrew@#2 ...as are many of our fellow planetary inhabitants, with more being added to the list with every year of inaction that passes! In the real world this means the expression - and everyone knows that's what it is - is a perfectly acceptable shorthand drawing attention to the scale of the threat to life as we've known it.

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4. Michael Whittemore at 22:57 PM on 18 March, 2013

   I have seen Venus used as an example of runway global warming causing the oceans to boil. I look forward to Peter trying to debunk the “Myth” of a possible runaway warming effect happening here on earth.

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5. jake at 00:37 AM on 19 March, 2013

   Who did that Michael W?

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6. Jan Sæther at 05:34 AM on 19 March, 2013
   The Runaway Greenhouse Effect - James Hansen
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   Moderator Response: [DB] Note that it is customary on this website to include explanatory text when posting links; in this case, at least have shown that you were replying to Jake above.
7. sol at 00:11 AM on 20 March, 2013

   David Archer in his Climate 101 lecture series, lecture 12 on the water vapor & ice feedback, starting at around the 14th minute explaines what the runaway greenhouse effect  is and why it happened to Venus and not the Earth.

    

   http://www.youtube.com/watch?feature=player_detailpage&v=g6ljuqucaIg#t=835s

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8. sol at 00:37 AM on 20 March, 2013

   don't know why my post appears 3 times, I only clicked the submit button once.

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   Moderator Response: [JH] Duplicate postings deleted.
9. Michael Whittemore at 22:55 PM on 20 March, 2013

   Great video series by David Archer, but you have to wonder if a mass release of Methane was able to drive up the temperature, it might be able to increase the amount of water vapour in the atmosphere like seen on Venus and also warm the Tropopause just enough to start a runaway Greenhouse Effect. It may not have happened on Earth before, but Earth has never had humans until now.

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