Impacts economictimes.indiatimes.com Study warns of alarming decline in Australian fish A 10-year study, looking at nearly 200 species at 544 sites, found the main cause was overfishing, with climate change also contributing, although the organisation that manages the nation's fisheries disputed the findings.
Newsletter www.sierraclub.org Why more carbon dioxide may not lead to more-productive crops New study challenges what we know about CO2's affect on different plants.
