Neil deGrasse Tyson @neiltyson
Solar flux scales as the square of the distance. If you do the math, Earth today receives about 6% more solar energy than in July. But we’re also moving faster in our orbit. Which largely cancels out the net gain. That’s why Winter is only 89 days long. Summer: 94 days — PolitiTweet.org
Sqweesh @Sqweesh_Kapeesh
@neiltyson What's the change in energy received from that +/- 3%?
