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Petteri Taalas

Global average CO2 concentrations rose at a record rate in 2016 to more than 403 parts per million up from 400.00 ppm in 2015, according to the World Meteorological Organization. Concentrations of CO2 are now nearly 50% higher than pre-industrial levels.

There’s more CO2 in the atmosphere now than any point in almost a million years

Science

The World Meteorological Organization says atmospheric concentrations of CO2 surged to a new record level in 2016. That puts even greater pressure for countries to cut carbon pollution to avoid catastrophic climate change.