Happy Earth Day!

What does Earth Day (or the Earth itself) have in common with Michael Trum?

1. Both were developed in 1969 after a "teach-in."

2. Both were celebrated for the first time in 1970.

3. Both are recognized "around the world."

4. Both were once considered the center of the Universe.

5. Both are magnetic.

6. Both have an outer crust.

7. Both are wider around the equator.

8. Both have limited natural resources.

9. Both are plagued by noxious emissions.

10. Both are not very close to their neighbors.