A collection of links debunking the 'Climate Change will be good for plant growth' myth

Climate Change Surprise: High Carbon Dioxide Levels Can Retard Plant Growth, Study Reveals

http://www.sciencedaily.com/releases/2002/12/021206075233.htm

Climate myths: Higher CO2 levels will boost plant growth and food production

http://environment.newscientist.com/channel/earth/dn11655-climate-myths-higher-cosub2sub-levels-will-boost-plant-growth-and-food-production.html

Myth - A few degrees more will be really nice - especially for plants! http://www.sierraclub.ca/national/programs/atmosphere-energy/climate-change/ten-myths.html#cc5

Studies of successive forests show that the tropical rainforests underwent dramatic collapse following climate change. http://www.scientificblogging.com/news_releases/what_happened_to_the_first_rainforests_global_warming_got_them_too_says_study

Will Grasslands Overtake U.S. Forests Due to Warming? http://news.nationalgeographic.com/news/2008/08/080806-grasslands.html

Here some great examples of the reality of how increased CO2 is helping plants to grow:

48 Wildfires Currently Burning 314,355+ Acres in 6 States  http://digg.com/environment

/48_Wildfires_Currently_Burning_314_355_Acres_in_6_States 

Sodden farmers struggling with a changing climate 

http://www.guardian.co.uk/environment/2008/sep/12/flooding.food

Corn could hit $10 as flooding may reduce output http://www.marketwatch.com/news/story/corn-may-hit-10-flooding/story.aspx?guid={E3547C37-467F-4101-BE1B-4AF5F47487BD}&dist=msr_4

Climate change caused widespread tree death in California mountain range http://www.physorg.com/news137693059.html and

Drought has hold on Oklahoma Panhandle http://www.hpj.com/archives/2008/jun08/jun23/DroughthasholdonOklahomaPan.cfm

Climate Change Threatens One In Five Plant Species by 2080 http://digg.com/environment/Climate_Change_Threatens_One_In_Five_Plant_Species

Major food source threatened by climate change http://environment.newscientist.com/channel/earth/dn13517-major-food-source-threatened-by-climate-change.html

"Leemans and Eickhout (2004) found that adaptive capacity decreases rapidly with an increasing rate of climate change. Their study finds that five percent of all ecosystems cannot adapt more quickly than 0.1 C per decade over time. Forests will be among the ecosystems to experience problems first because their ability to migrate to stay within the climate zone they are adapted to is limited. If the rate is 0.3 C per decade, 15 percent of ecosystems will not be able to adapt. If the rate should exceed 0.4 C per decade, all ecosystems will be quickly destroyed, opportunistic species will dominate, and the breakdown of biological material will lead to even greater emissions of CO2. This will in turn increase the rate of warming" --Leemans and Eickhout (2004), "Another reason for concern: regional and global impacts on ecosystems for different levels of climate change," Global Environmental Change 14, 219-228

We have warmed 0.2 C/decade for the last two decades.