Dear Wendy

Of course, there are many studies dealing with impact of climate change and the flora. In fact, the earlier date of bud-burst is one of the most eloquent impact of climate warming. The fertilization due to CO2 make some plants grow faster, however other conditions linked with global warming will make hydric stress to plants, or temperature stress. Plants are the most vulnerable because of limited adaptation possible.

References

1) Walther et al 2002. Ecological response to recent climate change. Nature 416:389-395       http://www.nature.com/nature/journal/v416/n6879/full/416389a.html?foxtrotcallback=true

2) Myneni et al 1997 Increased plant growth in the northern high latitudes from 1981 to 1991. Nature 386:698-702

http://www.nature.com/nature/journal/v386/n6626/abs/386698a0.html

3) Bazzaz 1990. The response of natural ecosystems to the rising global CO2 levels. Annual. Rev. Ecol. Syst 21:167-196 

4) Gu et al 2007. The 2007 Eastern US spring freeze: increased cold damage in a warming world ? BioScience 58(3) 253-262

GlobalGeoScience, BioScience, Forest Ecology and Management , Ecosystems are journals that will provide you with many other good articles on the subject

Cheers

Thank you. I thought it was a complex case but now its clear for me.

Thanks, Sir!