Page 2 of 15 FirstFirst 123412 ... LastLast
Results 16 to 30 of 221

Thread: The Carbon Thread

  1. #16
    Join Date
    Apr 2005
    Posts
    677

    Default

    Actually, some recent research has shown plants themselves (along with animals) produce a lot of "greenhouse" emissions - so simply re-foresting may not make things any better...

    I will dig up the ref.

  2. #17
    Join Date
    Oct 2004
    Location
    Sheffield
    Posts
    2,212

    Default

    I believe (and I am quite happy to be corrected) that the optimal way to get trees to capture carbon is to grow them big and then cut them down while planting more. I.e., not let them rot or be burnt. One of the best things to do with the wood is to use it in construction, so that the carbon in the wood just stays there for decades or centuries.

    Anyone got an idea about the sunspots theory? And whether these guys have taken the $10K offered by Texaco for anti-global warming research? It all sounds like nonsense to me but I'm no scientist.
    paul.meme
    Out now: Move Down Low VIP on SOUL JAZZ Records SJR225-12
    Out now: Blackdown & Dusk Meet Grievous Angel Uptown: Margins Music Redux (Keysound LDN014)
    Out now: Soundclash1 Remix / Harpy (Keysound LDN011)
    Out now: Ice Rink Refix (Devotional Dubz ERZULIE03)
    Out soon: WOOFAH 4!
    http://blog.grievousangel.net/ | http://www.myspace.com/grievousangelsoundsystem

  3. #18
    Join Date
    Jun 2006
    Posts
    15,040

    Default

    Quote Originally Posted by tryptych View Post
    Actually, some recent research has shown plants themselves (along with animals) produce a lot of "greenhouse" emissions - so simply re-foresting may not make things any better...

    I will dig up the ref.
    That sounds a bit odd. I think plants respire (i.e. use up energy stores like animals do, giving off CO^2 as a waste product) at night, but that they generally give off less CO^2 than they absorb, which is how the early Earth's CO^2-rich atmosphere got converted into an O^2-rich one in the first place, allowing animals to evolve. Er. I think.

  4. #19
    Join Date
    Nov 2004
    Posts
    602

    Default

    But as the planet heats up the recycling (rotting) process gets accelerated so more carbon is released...

  5. #20
    Join Date
    Jun 2006
    Posts
    15,040

    Default

    Quote Originally Posted by dHarry View Post
    But as the planet heats up the recycling (rotting) process gets accelerated so more carbon is released...
    Yeah, there are all sorts of suspected feedback-type effects going on - I think seawater is meant to be able to absorb a certain amount of CO2, but its ability to do this is affected by temperature, which is in turn affected by CO2 levels. This introduces (yet more) non-linearities into the equations used to model climate change, making it (even) harder to predict future trends. Having said that, it looks like most of the predictions made in the last ten years or so were under-estimates.
    Last edited by Mr. Tea; 29-04-2010 at 07:23 PM.

  6. #21
    Join Date
    Jun 2005
    Location
    Brooklyn
    Posts
    334

    Default

    What do you think this little guy is emitting?

    http://www.infotainmentcrap.com/inde...t_from=&ucat=&

    Plants deciding they are no longer vegetarians is the last thing we need...

  7. #22
    Join Date
    Jun 2006
    Posts
    15,040

    Default

    Quote Originally Posted by MATT MAson View Post
    What do you think this little guy is emitting?

    http://www.infotainmentcrap.com/inde...t_from=&ucat=&

    Plants deciding they are no longer vegetarians is the last thing we need...
    How many plants 'eat' other plants?

  8. #23
    Join Date
    Jun 2005
    Location
    Brooklyn
    Posts
    334

    Default

    A few.

    They are known as epiphytes.

  9. #24
    Join Date
    Jun 2006
    Posts
    15,040

    Default

    I think epiphytes grow on other other plants without deriving nutrients from them - like moss on a tree-trunk - as opposed to true parasites like mistletoe.

    Just yesterday, as it happens, I was reading on WP about myco-heterotrophs which sound pretty weird - apparently they can act as epiparasites in plants (parasites that live on a parasite!). Crazy stuff.

  10. #25
    Join Date
    Oct 2004
    Location
    Kingston
    Posts
    1,178

    Default

    The Great Global Warming Swindle

    http://video.google.co.uk/videoplay?...change+swindle

    Assertions: CO2 changes follow temperature changes, CO2 is not a cause of climate change it is an effect. Thatcher lofted the idea of global warming due to CO2 to bolster the nuclear industry against oil, gas and coal for energy security and union smashing reasons. And so on...

  11. #26
    Join Date
    Jun 2005
    Location
    Brooklyn
    Posts
    334

    Default

    This documentary has been heavily criticized, a lot of the people involved in it have since come out against it.

    Full story here:

    http://news.independent.co.uk/enviro...cle2347526.ece

  12. #27
    Join Date
    Oct 2004
    Location
    Kingston
    Posts
    1,178

    Default

    Quote Originally Posted by MATT MAson View Post
    This documentary has been heavily criticized, a lot of the people involved in it have since come out against it.

    Full story here:

    http://news.independent.co.uk/enviro...cle2347526.ece
    Only Professor Wunsch is mentioned in that article. The previous film he was criticised for maintained that genetically modified crops might not be all bad, as far as I can gather. It was a thought-provoking show anyhow.

  13. #28
    Join Date
    May 2005
    Location
    Toronto
    Posts
    532

    Default

    good rebuttal of that stupid doc.

    http://www.realclimate.org/index.php...7/03/swindled/

  14. #29
    Join Date
    Nov 2004
    Posts
    602

    Default

    ^ including a letter from Wunsch in the comments:

    My appearance in the "Global Warming
    Swindle" is deeply embarrasing, and my professional reputation
    has been damaged. I was duped---an uncomfortable position in which to be.

    At a minimum, I ask that the film should never be seen again publicly
    with my participation included. Channel 4 surely owes an apology to
    its viewers, and perhaps WAGTV owes something to Channel 4. I will be
    taking advice as to whether I should proceed to make some more formal protest."

  15. #30
    Join Date
    Oct 2004
    Location
    London
    Posts
    2,799

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •