According to data taken at the Mauna Loa Observatory, atmospheric CO2 concentrations have reached 415 ppm. Bella Wilkes outlines the effects we can expect to see from such high levels of greenhouse gases.
Read MoreAccording to data taken at the Mauna Loa Observatory, atmospheric CO2 concentrations have reached 415 ppm. Bella Wilkes outlines the effects we can expect to see from such high levels of greenhouse gases.
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