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Greening Earth

  1. Oct 2, 2006 #1
    I think that I mentioned here sometimes that more CO2 would mean more biomass and that the annual fosil fuel use would produce enough carbon to reforest an area as big as France.

    Guess what's happening:

    http://visibleearth.nasa.gov/view_rec.php?id=2138 [Broken]
     
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Oct 2, 2006 #2
    The northern hemisphere is greening. Specifically above 40 degrees North latitude.

    The contributing factors are temperature and longer growing season. Spring is coming earlier, and Summer is staying longer. Richer atmospheric CO2 is a factor as well, but not as great a factor as climate change.

     
    Last edited by a moderator: May 2, 2017
  4. Oct 2, 2006 #3
    Although it has been updated June 8, 2006, it is essentially an excerpt from this http://www.gsfc.nasa.gov/topstory/20010904greenhouse.html [Broken] published September 4, 2001.

    What I find intriguing is the possibility of utilizing the increased growing season to help absorb the increase of CO2 from carbon emissions. More trees are welcome.

     
    Last edited by a moderator: May 2, 2017
  5. Oct 2, 2006 #4
    This could be an opportunity for new technologies being developed to utilize bio-mass and carbon sequestration in the production of hydrogen, diesel, and fertilizers.

    http://www.eprida.com/hydro/index.htm

     
  6. Oct 3, 2006 #5
    Has there been a corresponding increase in marine and fresh-water algae? Of the total carbon fixed by plants by photosynthesis, only about ten percent is by terrestrial green plants--trees, grass, moss, etc.
     
  7. Oct 5, 2006 #6
  8. Oct 6, 2006 #7
    How about a browning earth?

    With the climate warming in some regions, indigenous insects, like the mountain pine beetle, are more active for longer periods and there is more migration of warm climate insects to areas unaccustomed to their voracious appetites.

    http://www.for.gov.bc.ca/hfp/mountain_pine_beetle/images/MPB_July8_03.jpg [Broken]

    http://images.google.ca/images?svnum=10&hl=en&lr=&q=aerial+pine+beetle&btnG=Search
     
    Last edited by a moderator: May 2, 2017
  9. Oct 7, 2006 #8
    Drought conditions weaken the resistance of plants making them more susceptible to disease and insects.

    According to a study about to be released, we may be in for a dry century.

    http://www.guardian.co.uk/uk_news/story/0,,1886964,00.html

    Whether or not one agrees with the science, the entire earth will suffer the consequences.
     
    Last edited by a moderator: May 2, 2017
  10. Oct 10, 2006 #9
    In the case of the northern pine forests in Canada the consequences are more of a result of warmer temperatures. Drought is not the culprit in the northern regions. The beetle that is causing the "browning" is simply rebounding in a lack of cold weather. What is needed is a solid 2 weeks of 40 below (C) to interupt their lifecycle and reduce their numbers. 40 below (C) was, at one time, the norm for winter temps all across the north. With that norm being changed there is the threat of the northern pine beetle spreading throughout the forests of the region all the way to the Atlantic Seaboard.
     
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