Global Cooling?

Question

I just heard global cooling has just become the greater threat...latest implemented tactics to correct global warming caused an overcorrection--result: overwhelming cooling of the Earth which could involve unprecedented glaciation....

What's your take?

http://en.wikipedia.org/wiki/Global_cooling
http://timesofindia.indiatimes.com/articleshow/1034077.cms
http://www.scienceagogo.com/news/20020015034521data_trunc_sys.shtml

Everyone had good comments...thank you.

Answer 1

Actually the temperature of the earth has increased less than 7/10 of 1 degree (C) from 1880 to 2005. That is an increase of about 1 degree (F) in 125 years. You may choose to believe that is global warming or you may not. Source: http://data.giss.nasa.gov/gistemp/2005/2005cal_fig1.gif There are numerous charts all over the internet showing the same. Some say that 1 degree is enough to impact the global climate, others say it's not. Most proponents of global warming think the earth's temperature has risen much more than that and don't even know that it has only risen by 1 degree. But the charts do not lie as do the proponents on both sides of this issue. The average temperature in Antarctica is 109 degrees below zero. Source: http://en.wikipedia.org/wiki/Antarctica#Climate It seems to me 108 below (one degree warmer) is still pretty cold and not enough to melt anything. But there are those that say it will.

Back in the '70s all the hype was about global COOLING and another ice age was coming. I remember that they blamed pollution for that too. They said that all the pollution was darkening the skies and not as much sun was coming through so the earth was cooling off. It took many years to discover that they were mistaken and it was all just hype. Source: http://en.wikipedia.org/wiki/Global_cooling So when someone says, "the sky is falling" don't believe everything you hear on either side of the issue. There are Spin Doctors galore out there.

Most of the time people will form an opinion and not really be informed about the subject with which they become so opinionated about. So it's best that you not form your opinions from other's opinions, (as in this forum) but on the facts presented. (Many do not provide any proof or links to prove their point, just their opinion.) With that said we do have a responsibility to do our part by doing whatever is within your power to keep our planet alive and well.

I hope that helps...

Answer 2

Well, it's certainly not overcorrection due to implemented tactics- not much has been done at all, aside from recognizing that carbon emissions have affected the warming/cooling cycles and thus we've seen unusual variations in temperature.

We haven't implemented anti-warming measures like cloud seeding or pumping different elements into the atmosphere to counteract C02 build-up. Nations are just now attempting to agree upon plans to reduce pollution and limit the damage already done by unregulated industrial growth.

Yep, global cooling was a big concern in the 1970's - it may yet turn out to be, but it's less likely than warming... climate science, like economics involves a lot of projections. But the factors which drive temperature shifts and the role of the polar caps, the jetstream and rain forests in the oxygen cycle are better understood now than 30 years ago.

Answer 3

There's nothing to talk about. According to your wikipedia reference, back in the 70's, “This theory gained temporary popular attention due to press reporting … The theory never had strong scientific support”.

“CapNemo” likes to go to all the global warming/cooling questions and paste in a statement pooh-poohing the threat. His statement is misleading and incorrect.

He says it’s only increased by 1 degree (F) in 125 years. This is a misleading number, because it is a global average: land and sea. We don’t live in the middle of the ocean and that’s not where the polar ice caps are melting. The temperature change over land surfaces has been twice that, and most of it in the last 40 years.

He says, “The average temperature in Antarctica is 109 degrees below zero.” If you go to his source, it says, “Temperatures reach a minimum of between -80 °C and -90 °C (-112 °F and -130 °F) in the interior in winter and reach a maximum of between +5 °C and +15 °C (41 °F and 59 °F) near the coast in summer.” OK, now the observation that the caps are melting makes more sense. It melts at the coast, in the summer, DUH! (Note by the way that his average number (-109) is only 3 degrees lower than one of the minimum numbers. I wonder, what kind of math did he learn?)

Then he says, “Back in the '70s all the hype was about global COOLING”. All what hype? I was around then. I don’t remember any hype. And if you go to his source, it says, “This theory gained temporary popular attention due to press reporting … The theory never had strong scientific support”. He tries to mislead us, by implying that a temporary flurry pf press reporting is comparable to what we are seeing now and that some hype without scientific basis is somehow similar to a consensus within the scientific community about global warming.

The truth is that those 2 degrees are HUGE in the scale of average weather change. But the real problem is the speed of change and that it's accelerating. Scientists are predicting a temp 4 to 8 degree (F) increase over the next 75 years. “This may not sound like a great deal, but just a fraction of a degree can have huge implications on the climate, with very noticeable consequences." (http://www.channel4.com/science/microsites/U/ukweather2080/5_predicting.html ). Yes, scientists predict, that's their job. They've gone to school years more than we have and spent their lives studying this stuff. This representrs humanity’s BEST GUESS at where this is all going. Of course, you can believe it snows in hell, or any other stupid thing you want. No one can stop you from believing what you'd rather hear, than what is the most probable outcome.

The link between CO2 and global warming is undisputed at this time. The amount of CO2 in the atmosphere has increased by more than 50% over the last 115 years (250 to 381 ppm, http://awesomenature.tribe.net/thread/fcc70c8b-be7e-489b-85f7-6c6c08031c65 ). In the last 30 years, it increased at a rate 30 times faster than at any period during the last 800,000 years. In other words, this change is totally unprecedented. (http://awesomenature.tribe.net/thread/fcc70c8b-be7e-489b-85f7-6c6c08031c65 ). What else is totally unprecedented about the last 115 years? Industrialization and the population explosion. Duh. This is not rocket science; it is simple arithmetic!

"If Bert Drake is right, the good news is that, within the foreseeable future, Maine residents will be able to stop banking their foundations and to store their down parkas and snow blowers in the barn permanently. The bad news is that a lot of those barns will be underwater" (http://awesomenature.tribe.net/thread/fcc70c8b-be7e-489b-85f7-6c6c08031c65 ). Yes, this is opinion. Who is Bert Drake? He's an SERC researcher who's been studying this for 17 years. If we aren’t going to believe our scientists, who then shall we believe??? Oh, I know. Let's believe CapNemo!!!

If global warming wasn't a real threat, why have 178 nations ratified the Kyoto Protocol to limit CO2 emissions? Why are the US and Australia the only two holdouts among the industrialized nations? (http://environment.about.com/od/kyotoprotocol/i/kyotoprotocol_2.htm )

CapNemo’s statement reminds me about the frog in the pot on the stove that doesn’t move as the water gradually gets hotter and hotter. From this seemingly insignificant 2 degree change, we’ve already seen enormous consequences. (http://www.davidsuzuki.org/Climate_Change/Impacts/) How much hotter does it have to get for some people to wake up and face the music? And in the meantime, while you’re pondering all of this, be sure to check the dates on people’s references. Things are changing so rapidly that older information is no longer useful.

Average Northern Hemisphere Temperatures for last 1000 years:
http://www.co2science.org/scripts/Template/0_CO2ScienceB2C/images/subject/other/figures/mannetal_nh1000.jpg

Answer 4

global cooling is an improbable threat! Its taken the human race with the industrial age 100 yaers to warm us up to the current state, With the rate the temp is climbing it would take another 50 years to even out and another 100 years to decend to 1900 temp rates. think about it this way, you and all these questions will be long forgotten before the temp gets back to normal

Answer 5

you do no longer understand the version between a typical vogue and a relentless boost, do you? many stuff impression international climate, that's why the Earth isn't continuously warming. working example, a pair of three hundred and sixty 5 days in the past, the sunlight hit its lowest image voltaic minimum in almost 80 years. (The sunlight would not emit a relentless point of skill; it cycles each and every eleven years or so.) That cut back in image voltaic interest has led to the planet to kick back. because of the fact the sunlight's radiation ranges height lower back, international warming will return.

Answer 6

There is cooling effect and warming effect from pollutions. But it appears net effect of those two is so far warming. Imbalance in those cooling and warming effect may tilt it to cooling, but also to rapid warming. But current philosophy of pollution control isn't likely to cause accelerated cooling since it will aim at cutting down pollutions that cause cooling and warming.