TOM LEHRER SINGS "POLLUTION AND DON'T LEAVE IT ALL TO THE EXPERTS" Part 2

The Highway and Its Environment

Part 4

Evolution of Man

Part 4

The Global Environment

Part 6

CBS Nightwatch Discussion of Toxic Waste Disposal

Part 12

Thematic Reel No. 8: Vignettes of American Women - 1979

Part 7

Herrah Women and the Work Environment

Part 4

Troubled Waters

Part 2

President George H. W. Bush's Press Conference at Rio De Janeiro Heads of State Earth Summit

Part 18