ABC Evening News for Saturday, Apr 21, 1990
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(Studio: Carole Simpson) Environmental demonstration in Detroit, Michigan, shown. Report introduced.
(Washington: Jed Duvall) Tomorrow's ceremonies to celebrate 20th anniversary of Earth Day previewed; scenes shown from 1970 Earth Day. [Environmental Defense Fund Michael OPPENHEIMER - says we have taken lead out of the air, but global atmosphere is less clean.] Advances in air and water quality and in garbage recycling reviewed. [Izaak Walton League Kristin MERRIMAN - compares typical environmentalist of 1970s and 1990.
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