Global cooling is not as much of a risk as global warming. The proper term is actually global climate change, because in some areas cooling will occur, while in others (most) warming will occur. The overall trend of the Earth will be warming however, which will cause a host of problems. The Earth naturally goes through warmer and cooler periods, however this climate change has been happening at a rate much faster than natural changes normally occur.
No. “Global cooling” was a conjecture that was popular in the 1970s, just as the modern understanding of climate change was beginning to rise. Some scientists hypothesized that the earth might be getting cooler due to a slight decline in temperatures from the 1940s to 1970s, which was caused largely by particulates and especially CFC’s (chlorofluorocarbons) in aerosol cans that have since been banned by most nations. “Global cooling” got into the public consciousness largely as a result of a 1975 cover article in Newsweek. As more scientists looked into it, however, they became aware that precisely the opposite was happening: the planet is getting warmer, rapidly, thanks to greenhouse gases emitted by human activity. Today the notion of “global cooling” is roundly rejected by the scientific community, but those who continue to deny climate change for largely ideological reasons sometimes point to the “global cooling” fad as “evidence” that anthropogenic global warming must not be happening or that there is no scientific consensus that it is happening. Unfortunately for them, there is; you’d have a hard time finding a climatologist today who thinks global cooling is much of a risk.
It depends on if you are asking about probability of a warm vs. clod period or the damage done by a warm vs. cold period.
The risk is greater for a warming period in the next fe centuries.
However, at some point, there will be another ice age. The changes man will need to make to adapt to the new ice age, when it occurs, will be much greater than changes that will be needed to adapt to a warmer planet. Warm periods in the last few thousand years have been associated with rapid advancement in civilization, at least in western civilization (Rome civilization 2000 years ago, the relatively warm period in Europe lat in the middle ages).
So, there is a greater chance of a warming period. But there is far more damage done to civilizations by the pending ice age.
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