NBC Evening News for Thursday, Jun 04, 1992
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(Studio: Tom Brokaw) United States reported indicating at the United Nations Earth Summit today that it might be willing to accept a treaty to protect endangered animals and plants; scenes shown from today's signing of a treaty on global warming.
(Studio: Robert Bazell) Theory of global warming featured; animation and computer models shown to illustrate how it is thought to occur. [Environmental Defense Fund Dr. Michael OPPENHEIMER - talks about threat to the world.] [Ohio Valley Coal Company Robert MURRAY - talks about elimination of jobs.] [NASA (National Aeronautics and Space Administration) Dr. Robert WATSON - talks about global warming models.] Discussion held about whether the earth has gone through a warming cycle before.