Greenhouse gas levels in atmosphere hit new high: U.N.
Sept. 9, 2014
GENEVA (AFP) -- Surging levels of carbon dioxide sent greenhouse gases in the atmosphere to a new record in 2013, while oceans, which absorb the emissions, have become more acidic than ever, the UN said on Tuesday."We know without any doubt that our climate is changing and our weather is becoming more extreme due to human activities such as the burning of fossil fuels," said Michel Jarraud, the head of the World Meteorological Organization that released a report on the issue on Tuesday."We must