None. There was a slight cooling around the middle of the 20th Century caused by the amount of pollution particles in the air. These were reflecting the sun's rays. When Clean Air Acts began to take effect around the world the air became cleaner and the cooling disappeared.
No, that would probably be evidence for global cooling.
The reverse change of global warming is global cooling, which refers to a decrease in average temperatures worldwide. Global freezing is not a recognized scientific term but can be used colloquially to emphasize extreme cold conditions.
The opposite of global warming is global cooling, which refers to a decrease in the Earth's average temperature over an extended period of time.
Global warming makes the earth hotter, resulting in melting ice caps. In general it is not possible to cool something by making it warmer. Freezers and air conditioners can cool an enclosed space, but only by generating even more heat overall.
It cools it somewhat. Global cooling occurs after a volcanic eruption when clouds of dust remain in the sky for several days reflecting the sun's rays. This results in a cooling of the atmosphere.
No, definitely not.
The earth has a long history of warming and cooling. Ever heard of the Ice Ages? Other planets are currently showing evidence of warming.
If global cooling means the gradual cooling into an Ice Age, then that has happened in the past and it has taken thousands of years to happen. The present global warming has all happened far faster, in less than 200 years, and is threatening all life on the planet if we can't stop it. Global warming is by far the more dangerous situation.
global warming?
There was a time in the 1970s when scientists though the earth might be approaching a global cooling period. This was quickly proved incorrect. But a possible result of global cooling would be more ice caps, larger glaciers, colder winters, cooler summers etc.
Global cooling ended at the end of the 19th century. According to warmists, this is because of the rise of industry which began to emit pollution (carbon dioxide).
There was a slight cooling around the middle of the 20th Century caused by the amount of pollution particles in the air. These were reflecting the sun's rays. When Clean Air Acts began to take effect around the world the air became cleaner and the cooling disappeared.