Recent studies have shown increases in biomass across many forest types. This increase has been attributed to climate change. Using data collected over the past 22 years from 55 temperate forest plots, scientists found that recent biomass accumulation greatly exceeded the expected growth caused by natural recovery. Furthermore, the biomass increases are in line with globally observed climate-change patterns. Combined, these observations show that changes in temperature and CO2 that have been observed worldwide can fundamentally alter the rate of critical natural processes, which is predicted by biogeochemical models.
McMahon S.M. et al., 2010, "Evidence for a recent increase in forest growth", Proceeding of the National academy of Sciences, published online before print
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