The value of plankton

Yet another good reason to fight global warming:

Using a decade's worth of satellite data, scientists have determined that rising ocean temperatures are killing phytoplankton. Not only do these tiny plants form the base of oceanic food webs, they also process as much carbon dioxide and produce as much oxygen as land plants do. Although the findings may be influenced by El Niño, the researchers say the the study provides a sneak peek at how ocean biology will evolve as the climate continues to change.

The article has more negative effects on marine life, but in a nutshell, "Warmer oceans could mean fewer fish in the sea -- and pricier seafood."