CO2 Continues Dangerous Rise, Hits 400.2 Parts Per Million in Late February
More than two months before typical annual maximum in late May or early June, global average CO2 levels have again breached the dangerous 400 part per million threshold.
On February 26th, Mauna Loa’s CO2 observatory recorded three hourly readings at or above 400 parts per million with a peak value of 400.2 ppm. The reading comes just ten months after weekly CO2 values exceeded 400 parts per million during May of 2013, the first time in more than 3 million years that atmospheric levels have been so high.
At the current annual rate of increase, we can expect CO2 levels to peak around 401.5 to 403 parts per million sometime in late May of this year. Last year’s average annual rate of increase was 2.6 parts per million over 2012. If 2014 were to match this, abnormally rapid, pace, daily and hourly measures could exceed peak values of 403 parts per million over the next two months.
by ROBERT SCRIBBLER, robertscribbler.wordpress.com
(Daily and hourly CO2 readings at the Mauna Loa Observatory from February 20 to 26. Image source: The Keeling Curve.)
More than two months before typical annual maximum in late May or early June, global average CO2 levels have again breached the dangerous 400 part per million threshold.
On February 26th, Mauna Loa’s CO2 observatory recorded three hourly readings at or above 400 parts per million with a peak value of 400.2 ppm. The reading comes just ten months after weekly CO2 values exceeded 400 parts per million during May of 2013, the first time in more than 3 million years that atmospheric levels have been so high.
At the current annual rate of increase, we can expect CO2 levels to peak around 401.5 to 403 parts per million sometime in late May of this year. Last year’s average annual rate of increase was 2.6 parts per million over 2012. If 2014 were to match this, abnormally rapid, pace, daily and hourly measures could exceed peak values of 403 parts per million over the next two months.
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