The US National Oceanic and Atmospheric Administration (NOAA) has announced that global carbon dioxide concentrations have now reached a new monthly record.
Carbon dioxide levels are at 400 parts per million (ppm) around the world, which is the first month this has ever happened; levels broke the 400ppm level for the first time in 2012 in the Arctic, and it seems the rest of the world has caught up. These levels, it is believed, haven't been seen in approximately two million years!
Pieter Tans, lead scientist at the NOAA's Global Greenhouse Gas Reference Network, said, "It was only a matter of time that we would average 400ppm globally." He explained that carbon dioxide has risen more than 120ppm since the pre-industrial era, and half of that rise has happened since 1980.
This news comes as global leaders set their sights on attending the UN Climate Change Conference in Paris at the end of 2015.
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