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Provocations #81: To save democracy
Provocations #234: Shootout at the K/T boundary
Provocations #65: Star wars credibility declines
LAS retreat ski trip ranch
Provocations #292: Andrei Sakharov, man of integrity
LAS retreat ski trip ranch
Provocations #145: Science policy issues
Provocations #90: Space disasters--space triumphs
Provocations #122: What caused the Cameroon lake disaster?
Provocations #224: The greenhouse effect: are the experts too timid?
Provocations #170: Enhancement of nature: the world as a garden
Provocations #138: The year without a summer
Provocations #98: Talks with Soviet colleagues
Provocations #99: Space junk proliferates
Provocations #139: New evidence on Greenhouse Effect
Provocations #92: Africa's droughts, are they getting worse?
Provocations #111: The Ruiz volcano disaster
Provocations #114: Oscillation in the Sun and stars
LAS retreat ski trip ranch
Provocations #58: Nahcolite and acid rain

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