This process caused global cooling as a result of a reduction in the greenhouse effect.

When I first began to worry about climate change, global cooling and nuclear winter seemed the main risks.

First it was global cooling and the coming ice age.

One cold spell and people were already talking about "global cooling."

Do you remember all the hype over global cooling in the 1970's?

These events cause global cooling, which eventually starts a new ice age.

An average global cooling of half a degree would scarcely be noticed by people on the street.

Now it has stopped increasing, and global cooling is predicted to continue over the years to come.

I remember reading news stories about global cooling being man caused.

Can you come up with ideas for global cooling?