Comments on: Deforestation leading cause of Global Warming http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/ The Understory is the official blog of Rainforest Action Network. Wed, 17 Mar 2010 20:04:44 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Warrick http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-402104 Warrick Wed, 24 Feb 2010 13:27:53 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-402104 world Leaders havent even considered that deforestation is a cause of global warming! THEY NEED TO CATCH A WAKE UP! world Leaders havent even considered that deforestation is a cause of global warming! THEY NEED TO CATCH A WAKE UP!

]]> By: aditi http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-358670 aditi Wed, 01 Jul 2009 04:29:03 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-358670 i was intented to know about deforestation for its my subject in bio and i needed to preapere some good points on it for my borads thank you for helping meeeee i was intented to know about deforestation for its my subject in bio and i needed to preapere some good points on it for my borads thank you for helping meeeee

]]> By: Sean Williams http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-205620 Sean Williams Fri, 30 May 2008 21:51:03 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-205620 hey. i've done multiple reports on deforestation, mostly in south america, and i think this site should show a more broad understanding of it. hey. i’ve done multiple reports on deforestation, mostly in south america, and i think this site should show a more broad understanding of it.

]]> By: stephanie http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-187616 stephanie Wed, 16 Apr 2008 07:56:11 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-187616 i reckon the exact same as helga i reckon the exact same as helga

]]> By: helga http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-187615 helga Wed, 16 Apr 2008 07:55:09 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-187615 deforestation causes loss of wildlife and nutrients in the soil deforestation causes loss of wildlife and nutrients in the soil

]]> By: Martin Shaw http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-180568 Martin Shaw Sat, 29 Mar 2008 09:59:44 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-180568 I believe that global deforestation is the biggest man-made source of global warming. The problem with current analyses is that they only look at emissions from deforestation or fuel burning. They disregard the impact of loss of carbon sinks. Look at the 1994 data at http://www.globalchange.umich.edu/globalchange2/current/lectures/deforest/deforest.html. Human emissions of CO2 from fuel burning are about 5 Gt/yr globally. Photosynthetic uptake from terrestrial biota is over 100 Gt/yr. However, it is known that about half of the Earth's forests are already gone. This means that the pre-industrial level of terrestrial uptake may have been in the order of 200 Gt/yr. You can't do what Kyoto does and assume that we have to go back to 1990 levels to fix the problem. Most of the damage was done by then. Hence, if we are able to completely eliminate all carbon emissions, global warming will not stop until the carbon sink is re-established. On an annual basis, the existing reduction in the carbon sink (100 Gt/yr) is about 20 times the anthropogenic CO2 emissions (5 Gt/yr) I believe that global deforestation is the biggest man-made source of global warming. The problem with current analyses is that they only look at emissions from deforestation or fuel burning. They disregard the impact of loss of carbon sinks. Look at the 1994 data at http://www.globalchange.umich.edu/globalchange2/current/lectures/deforest/deforest.html.

Human emissions of CO2 from fuel burning are about 5 Gt/yr globally. Photosynthetic uptake from terrestrial biota is over 100 Gt/yr. However, it is known that about half of the Earth’s forests are already gone. This means that the pre-industrial level of terrestrial uptake may have been in the order of 200 Gt/yr. You can’t do what Kyoto does and assume that we have to go back to 1990 levels to fix the problem. Most of the damage was done by then.

Hence, if we are able to completely eliminate all carbon emissions, global warming will not stop until the carbon sink is re-established. On an annual basis, the existing reduction in the carbon sink (100 Gt/yr) is about 20 times the anthropogenic CO2 emissions (5 Gt/yr)

]]> By: keeton http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-139154 keeton Fri, 09 Nov 2007 15:22:53 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-139154 i bum trees i bum trees

]]> By: jack http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-139153 jack Fri, 09 Nov 2007 15:21:30 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-139153 deforistation is should be stopped at once there are other ways to get wood from westy and jack..............ty deforistation is should be stopped at once there are other ways to get wood from westy and jack…………..ty

]]> By: jack http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-139152 jack Fri, 09 Nov 2007 15:21:10 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-139152 deforistation is should be stopped at once there are other ways to get wood from westy and jack.............. deforistation is should be stopped at once there are other ways to get wood from westy and jack…………..

]]> By: Stan http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/comment-page-1/#comment-96220 Stan Sat, 09 Jun 2007 17:26:15 +0000 http://understory.ran.org/2007/05/16/deforestation-the-leading-cause-of-global-warming/#comment-96220 Ed and Frank, a whole team of RAN campaigners just got back from a research mission to the Brazilian Amazon (and other delicate ecosystems in that area). We're definitely aware of how climate change, deforestation, human rights abuses, poverty, etc. are all linked. We're trying to balance the urgency of the environmental peril with the time it takes to act in a smart and strategic way. Rest assured, we've got a whole bunch of full-time staff working on this issue now. Ed and Frank, a whole team of RAN campaigners just got back from a research mission to the Brazilian Amazon (and other delicate ecosystems in that area). We’re definitely aware of how climate change, deforestation, human rights abuses, poverty, etc. are all linked. We’re trying to balance the urgency of the environmental peril with the time it takes to act in a smart and strategic way.

Rest assured, we’ve got a whole bunch of full-time staff working on this issue now.

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