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(1 - 20 of 291)

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Provocations #153: The potential for controlling the Greenhouse Effect
Title
Provocations #153: The potential for controlling the Greenhouse Effect
Date Created
1987-04-18
Author/Creator
Walter Orr Roberts
Provocations #241: A new finding about the Gaia hypothesis
Title
Provocations #241: A new finding about the Gaia hypothesis
Date Created
1988-12-24
Author/Creator
Walter Orr Roberts
Provocations #139: New evidence on Greenhouse Effect
Title
Provocations #139: New evidence on Greenhouse Effect
Date Created
1986-12-10
Author/Creator
Walter Orr Roberts
Provocations #165: Preserving diversity of life
Title
Provocations #165: Preserving diversity of life
Date Created
1987-07-11
Author/Creator
Walter Orr Roberts
Provocations #202: The origins of comets
Title
Provocations #202: The origins of comets
Date Created
1988-03-27
Author/Creator
Walter Orr Roberts
Provocations #66: Daisyworld--a new look at our planet
Title
Provocations #66: Daisyworld--a new look at our planet
Date Created
1985-08-24
Author/Creator
Walter Orr Roberts
Provocations #152: Carl-Goran Heden
Title
Provocations #152: Carl-Goran Heden
Date Created
1987-04-11
Author/Creator
Walter Orr Roberts
Provocations #113: Depleting the ozone layer
Title
Provocations #113: Depleting the ozone layer
Date Created
1986-07-12
Author/Creator
Walter Orr Roberts
Provocations #107: Gravitational lenses
Title
Provocations #107: Gravitational lenses
Date Created
1986-05-31
Author/Creator
Walter Orr Roberts
Provocations #191: Pliny's account of the fireball of 76 BC
Title
Provocations #191: Pliny's account of the fireball of 76 BC
Date Created
1988-01-09
Author/Creator
Walter Orr Roberts
Provocations #20: New findings about the Greenshouse Effect
Title
Provocations #20: New findings about the Greenshouse Effect
Date Created
1984-09-22
Author/Creator
Walter Orr Roberts
Provocations #109: Future boon from food and fiber of the past
Title
Provocations #109: Future boon from food and fiber of the past
Date Created
1986-06-14
Author/Creator
Walter Orr Roberts
Provocations #142: The Arctic
Title
Provocations #142: The Arctic
Date Created
1987-01-31
Author/Creator
Walter Orr Roberts
Provocations #201: Darkness in daylight
Title
Provocations #201: Darkness in daylight
Date Created
1988-03-18
Author/Creator
Walter Orr Roberts
Provocations #237: Evidence mounts for asteroids as the dinosaur killer
Title
Provocations #237: Evidence mounts for asteroids as the dinosaur killer
Date Created
1988-11-26
Author/Creator
Walter Orr Roberts
Provocations #8: The death of the Earth
Title
Provocations #8: The death of the Earth
Date Created
1984-07-02
Author/Creator
Walter Orr Roberts
Provocations #131: Arctic permafrost and the Greenhouse Effect
Title
Provocations #131: Arctic permafrost and the Greenhouse Effect
Date Created
1986-11-15
Author/Creator
Walter Orr Roberts
Provocations #291: Out in a blaze of glory
Title
Provocations #291: Out in a blaze of glory
Date Created
1989-12-09
Author/Creator
Walter Orr Roberts
Provocations #11: Climates of hunger
Title
Provocations #11: Climates of hunger
Date Created
1984-07-22
Author/Creator
Walter Orr Roberts
Provocations #0
Title
Provocations #0
Date Created
1984-05-12
Author/Creator
Walter Orr Roberts

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