Will CO2 concentrations exceed 412 ppm by June 30, '17?

Carbon dioxide levels in the atmosphere have been increasing steadily. They are measured by the Mauna Loa Observatory in Hawaii each day. The highest reading ever, during modern times, is 409.56 ppm

Scientifically measured values are determined each day and published on the CO2 Earth webpage, https://www.co2.earth/ If the published value exceeds 412.00 by the end of the day June 30, 2017 or before, then the result is a "yes." If not, then a "no" outcome. The bet may conclude early.

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