RTCC: World leaders are running out of time to address the threat of climate change, the UNs chief meteorologist warned as carbon dioxide levels hit record highs in April.
Data released by the World Meteorological Organization (WMO) revealed that for the first time CO2 topped 400 parts per million (ppm) in April throughout the northern hemisphere.
WMO Secretary-General Michel Jarraud said the findings had symbolic and scientific significance, adding it should serve as a wake-up call over the...