Robatoy wrote:
On Feb 16, 10:16 am, Bob Schmall wrote:

a. The solar system in its journey around the center of the Milky Way
galaxy occasionally passes through clouds of gas and dust that block a
bit of the Sun's heat.
b. The Earth's orbit is not perfectly stable and occasionally becomes
more eccentric, i.e., a longer ellipse.
c. The Earth's poles don't maintain their 23.5 degree orientation to
the plane of the ecliptic.
d. Rec. Woodworking did not produce hot air until about 15 years ago.

Scientists have proposed the first three, but I'll go with (d)

Banalities?

No, thanks, I've just had some.