New Delhi, Dec. 3 -- Signalling a climate crisis, the World Meteorological Organization (WMO) on Tuesday said 2019 marks the end of warmest decade on record with global average temperatures about 1.1 degC above the pre-industrial period.

According to WMO, concentration of carbon dioxide in the atmosphere, which had hit a record level of 407.8 parts per million (ppm) in 2018, continued to rise in 2019. Carbon dioxide lasts for centuries in the atmosphere and the oceans, thus locking in climate change.

"If we do not take urgent climate action now, then we are heading for a temperature increase of more than 3degC by the end of the century. We are nowhere near on track to meet the Paris Agreement target," said WMO Secretary-General Petteri ...