Recent research has shown that plants are responding to global warming. Researchers have discovered more chlorophyll-a, the result of photosynthesis, in Arctic lakes means a longer growing period than in previous years. A longer growing period means more food for Arctic animals. Research has also shown that plants are moving to higher elevations in order to escape warmer temperatures and stay in their ideal temperature range.

Global Warming Sparks Increased Plant Production in Arctic Lakes
Global Warming Sparks Increased Plant Production in Arctic Lakes 24 October 2005 By Robert Roy Britt LiveScience Managing Editor Biological activity in some Arctic lakes has ratcheted up drama
http://www.livescience.com/environment/051024_arct...
Global Warming's Effects On Plant And Animal Life Video
Global Warming's Effects On Plant And Animal Life Professor Michael Oppenheimer Videojug.com Visit the web site for the video.
http://www.videojug.com/interview/global-warmings-...
Plants "Climbing" Mountains Due to Global Warming
Plants "Climbing" Mountains Due to Global Warming Mason Inman for National Geographic News June 26, 2008 Like people vacationing in the mountains to escape summer heat, plants are "climbing" t
http://news.nationalgeographic.com/news/2008/06/08...
Plants revealed as methane source
Plants revealed as methane source January 2006 By Tim Hirsch BBC News environment correspondent Forests may add to methane levels, scientists say Scientists in Germany have discovered that o
http://news.bbc.co.uk/1/hi/sci/tech/4604332.stm