Four Hundred

By Scott Lewis, Brightworks CEO

400
this is a big deal

400 ppm is a big deal

the last time the Earth’s atmosphere had 440 ppm CO2 was over 2.5 million years ago.

the planet was 5 to 10 degrees F. warmer than it is today

“cozy,” you think.

“5-10 degrees warmer, that sounds kind of nice,” you think.

when the Earth’s average temperature was 5-10 degrees warmer than it is today, there was no Greenland Ice Sheet and the seas were 82 feet higher than they are today.

Not cool.

Not cozy.

 We can do More.

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