Three years <a href=" http://www.academicpresseurope.nl/?1600-word-essay ">air pollution in malaysia essay</a> "We will push marine ecosystems out of their historical "habitable zones,"" if current trends in greenhouse gas emissions continue, says Ken Caldeira, a climate scientist at the Carnegie Institution for Science, who was not involved in the study. He says some species may be able to adapt but others, such as coral reefs, likely won't.