Record-breaking increase in CO2 levels in world’s atmosphere

Experts issue warning after finding global average concentration in March was 4.7ppm higher than same period last year

The largest ever recorded leap in the amount of carbon dioxide laden in the world's atmosphere has just occurred, according to researchers who monitor the relentless accumulation of the primary gas that is heating the planet.

The global average concentration of carbon dioxide in March this year was 4.7 parts per million (or ppm) higher than it it was in March last year, which is a record-breaking increase in CO₂ levels over a 12-month period.