SCIENCE: Climate change threatens biodiversity
Daily Times Monitor
DENVER: Climate change already is causing serious detrimental effects on biological systems in Africa, the Andes and the oceans worldwide, scientists studying these areas have warned.
Thomas Lovejoy, president of the H. John Heinz III Center for Science, Economics and the Environment in Washington, D.C., said there will come a point at which carbon dioxide accumulating in the atmosphere will cause “serious biological disruption, and the emerging picture...suggests these disruptions will occur slightly this side of double pre-industrial CO2 (carbon dioxide) levels.”
Speaking in Denver at the annual meeting of the American Association for the Advancement of Science, Lovejoy said that while deciphering the impacts of climate change was no simple matter, it appeared that ecosystems were among the most sensitive to its effects.
“There needs to be debate about the acceptable levels of carbon dioxide in the atmosphere,” he suggested. Lovejoy later said that acceptable levels should be set “at the rate at which ecosystems can adapt naturally.”