Carbon Dioxide Levels Reach Highest in 4 Million Years, Accelerating Worrying Climate Change

Carbon dioxide levels in the atmosphere reached record highs in the annual spring peak according to monitoring stations.
The burning of fossil fuels has caused carbon dioxide levels to increase by 51% since pre-industrial times, according to scientists.
The rise in atmospheric carbon dioxide is happening at an increasing rate, worrying climate scientists about the pace of climate change.
The high levels of carbon dioxide will trap more heat in the atmosphere and influence the climate for thousands of years.
Humans are conducting an uncontrolled experiment on the climate by pumping carbon dioxide into the atmosphere, scientists warn.