Hva blir det? Global oppvarming - eller global nedkjøling?

"The facts have emerged, in recent years and months, from research into past ice ages. They imply that the threat of a new ice age must now stand alongside nuclear war as a likely source of wholesale death and misery for mankind."
- Nigel Calder, "In the Grip of a New Ice Age", International Wildlife, July 1975

"The continued rapid cooling of the earth since World War II is also in accord with the increased global air polution associated with industrialization, mechanization, urbanization, and an exploding population, added to a renewal of volcanic activity..."
- Reid Bryson, "Environmental Roulette", Global Ecology; Readings Toward a Rational Strategy for Man John P. Holdren and Paul R. Ehrlich, editors, 1971

"Those who cannot remember the past are condemned to repeat it."
- Life of Reason, George Santayana

A Study of Climatological Research as it Pertains to Intelligence Problems
This document is a working paper prepared by the Office of Research and Development of the Central Intelligence Agency for its internal planning purposes. Therefore, the views and conclusions contained herein are those of the author and should not be interpreted as necessarily representing the official position, either expressed or implied, of the Central Intelligens Agency
August 1974

Dr. Steven Schneider: Som ung fryktet han global nedkjøling,
deretter fryktet han global oppvarming.

Med takk til Steven Goddard

Playing God
Judith Curry (JC) comments: In the 1970's as a student, I had courses in weather modification (cloud seeding) and inadvertent weather modification (pollution, urban heat islands, etc). Cloud seeding is an excellent example of the challenges of producing the desired effect and of documenting that your action had some causative component (it aint easy). The unintended consequences (e.g. downstream droughts or floods) introduce a legal nightmare into such activities.