Climate-heating greenhouse gases hit new high, UN reports

Head of World Meteorological Organization says 'no sign of a slowdown, let alone a decline'

The concentration of climate-heating greenhouse gases has hit a record high, according to a report from the UN's World Meteorological Organization.

The jumps in the key gases measured in 2018 were all above the average for the last decade, showing action on the climate emergency to date is having no effect in the atmosphere. The WMO said the gap between targets and reality were both "glaring and growing".