...frequent as "will": Rapid changes in climate will change the composition of ecosystems; some species will benefit while others will be unable to migrate...atmospheric concentrations of natural greenhouse gases (Houghton, Jenkins, and Ephraums 1990, VK). Despite this pessimistic conclusion, there have been determined...

...These increases have not been smooth with time, nor uniform over the globe. o the size of this warming is broadly consistent with predictions of climate...gases. To improve our predictive capability, we need: o to understand better the various climate-related processes, particularly those associated with clouds,...

...Rapid changes in climate will change the composition of ecosystems; some systems will benefit, whi le others will be unable to migrate or adapt fast enough...efficiency of water use of vegetation. The effect of wanning on biological processes, although poorly understood, may increase the atmospheric concentrations...