Information on Global Warming

Question

30 yrs ago they thought we were having global freezing now we have global warming. My question is If there are holes in the ozone layer wouldn't that let heat escape? If there aren't any holes there it would be like a green house and stay extremely warm at all times because there is no way for heat to escape?

Are the less holes now then before?

Please clarify the difference form Global Cooling and Global Warming or is it just weather patterns changing?

Answer 1

Since America is in the northern hemisphere, and as I understand that the wind currents travel from the equator to the North Pole and back, while the opposite being true for the southern hemisphere. The hole in the ozone is supposed to be above the South Pole why are we in America blamed for it?  If we caused it shouldn’t it be above the North Pole?

Answer 2

yes there is still a seasonal hole above Antarctica and thinning elsewhere, and yes there is some extra heat loss where it is very thin (one probable reason Antarctica hasnt warmed as much as the arctic), but the effect is insignificant globally as described by pegminer above.

Answer 3

The increased carbon dioxide in the troposphere (lower atmosphere) more than makes up for the decreased ozone in the stratosphere.  The upward going infrared radiation that might have made it through the ozone hole is absorbed down below, warming the Earth.

Only a very few people suggested any significant cooling 30 years ago, now thousands of scientists believe that the Earth is warming.

Answer 4

i'd say you're correct.

what gets me is -if you've ever constructed a greenhouse- if there's even a tiny hole in a green house it almost negates Any effect what so ever.

Answer 5

Well, what I've heard from is that they found a big whole in the ozone layer just above Antarctica. I'm not for sure believing it's true, but hey, you never know. I also heard that there could be another ice age due to the earthquakes and water temperatures. All I really have to say that it's all our fault.

Answer 6

Holes in the ozone does not let heat escape. Ozone protects us from ultraviolet light and does not have an effect on heat transfer.

Global Warming and Global Cooling are both junk science interpretations of climate change. In both cases, biased researchers looking at the records for a couple of thousand years (if that), and make a conclusion as to what is normal for the Earth, which is over 4 billion years old. This is the equivalent of looking at the last 5 minutes of your life and saying what you were doing during those 5 minutes is normal for you.

Answer 7

The ozone layer filters incoming energy in the same way as it does the outgoing energy.  So it does not have much of a greenhouse effect.

Water vapour, CO2, and methane are significant in the lower atmosphere, as they allow all incoming light, but do not allow escape of a lot of heat, infrared radiation.

Holes in the ozone allow more radiation in and out, equally.

In the 1970 period there were some mass media discussions of cooling, particularly in northern Canada. We had seen an increase in ice cover remaining in bays, even more in the north west passage. Now there was never a scientific view that we were starting into an ice age. To develop an ice age as suggested by the articles in mass media, we would have needed to have had much more heat in the oceans.

It is possible to have increased ice cover that is a short term outcome. And events like volcanic activities can trigger such outcomes. When the oceans are substantially warmed those volcanic events are a likely trigger to take us into an ice age.

But at any time they can put us into a period of cooling, or as often described a period of dimming, where sunlight is reflected both by volcanic dust and by increased cloud cover.