By Scott Lewis, Brightworks CEO
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.