Read here. The predictions of alarmist scientists are frequently hysterical, and most often wrong, as was globally witnessed with the Hurricane Irene forecasts. Another example of an incredibly bad "climate science" prediction was that marine life would be decimated by human-induced global warming. Scientists and empirical evidence prove that prediction wrong.
A new peer-reviewed study by Chavez et al. determined that the opposite has occurred: marine life and productivity has improved during the modern warming.
"...the three researchers -- all from the Monterey Bay Aquarium Research Institute of Moss Landing, California -- write that "general conclusions from the satellite and in situ time-series presented here are that PP [primary production] is increasing globally," and they note that global marine PP appears to have risen over the past several decades in association with multi-decadal variations in climate. In addition, they indicate that data from Continuous Plankton Recorder surveys conducted in the north Atlantic depict "increases in chlorophyll from the 1950s to the present," citing McQuartters-Gollop et al...report that ocean sediment cores containing an "undisturbed history of the past" have been analyzed for variations in PP over timescales that include the Little Ice Age...they determined that during the LIA the ocean off Peru had "low PP, diatoms and fish," but that "at the end of the LIA, this condition changed abruptly to the low subsurface oxygen, eutrophic upwelling ecosystem that today produces more fish than any region of the world's oceans...write that "in coastal environments, PP, diatoms and fish and their associated predators are predicted to decrease and the microbial food web to increase under global warming scenarios," citing Ito et al. However, they say that, "present-day trends and the sedimentary record seem to indicate that the opposite might occur."" [Francisco P. Chavez, Monique Messié, and J. Timothy Pennington 2011: Annual Review of Marine Science]