the 80's TMNT (both the cartoon and the Archie Comics) also did envoronmental stuff as well. My favorite line comes from Shredder's Mom where a scientist says:
"The Earth's temperature will gradually rise, casuing the polar ice caps to melt, and your nice beachfront property to rapidly decrease in value"
"The Earth's temperature will gradually rise, casuing the polar ice caps to melt, and your nice beachfront property to rapidly decrease in value"