Atmospheric Carbon Dioxide Hits Highest Level in at least 3 Million Years

Methane and nitrous oxide levels continue to rise as well, warns World Meteorological Organization.
The press release from the World Meteorological Organization (WMO) says it all: “Another year, another record.”

It is a record we do not want. It is a record of political failure. It is a record based on the politics of climate denial. We have crossed another climate threshold that, yet again, signals we are in deep trouble.

We are now experiencing levels of carbon dioxide, the primary greenhouse gas, that the earth has not experienced for three to five million years. We are walking — more like stumbling with stupidity — into the unknown. But we know there will be consequences. If we do not change our current trajectory quickly, we risk leaving a very different and dangerous world to our children and grand-children.

According to the WMO’s annual Greenhouse Gas Bulletin, which collects data from fifty four countries, the average concentrations of carbon dioxide (CO2) reached 407.8 parts per million in 2018, up from 405.5 parts per million (ppm) in 2017.

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