(text) Earth Just Passed 410 ppm CO2 Levels for the First Time in Human History - ScienceAlert

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Earth, Climate Change, History

> Begin forwarded message:
>
> From: Kathy Gilbeaux <gilbojer@aol.com>
> Subject: Earth Just Passed 410 ppm CO2 Levels for the First Time in Human History - ScienceAlert
> Date: May 2, 2017 at 9:57:40 AM EDT
> To: "Michael D. McDonald" <michael.d.mcdonald@mac.com>
>
> Mike,
>
> FYI . . .
>
> Earth Just Passed 410 ppm CO2 Levels for the First Time in Human History - ScienceAlert
>> http://www.sciencealert.com/earth-just-passed-410-ppm-co2-levels-for-the-first-time-in-human-history <http://www.sciencealert.com/earth-just-passed-410-ppm-co2-levels-for-the-first-time-in-human-history>
>
> We Just Breached the 410 PPM Threshold for CO2
> https://www.scientificamerican.com/article/we-just-breached-the-410-ppm-threshold-for-co2/ <https://www.scientificamerican.com/article/we-just-breached-the-410-ppm-threshold-for-co2/>
>
> Kathy