Cartoons themed Earth Day

[Martin Juneau]

I think the only classic cartoon themed Earth Day celebrated friday are FLOWERS AND TREES (1932). How others?

[J. B. Warner]

Actually, "Flowers and Trees" was made years before Earth Day was declared a national holiday.

[cbrubaker]

If "Mutts" was made into animated cartoons, there would be a lot of cartoons on "Earth Day".