How many years will it take to cool down the globe?

Question

How many years will it take to cool down the globe?

Answer 1

We're just now entering solar cycle 24, and it's been a slow start to say the least.  More importantly, computer models indicate solar cycle 25 will be extremely inactive, giving rise to global cooling fears among solar physicists.

http://science.nasa.gov/headlines/y2006/...

http://www.hm-treasury.gov.uk/media/5/7/...

Edit:  Just found this (it ain't pretty!):

http://www.spaceandscience.net/sitebuild...

[12] As a result of the theory, it can be predicted that the next solar minimum may start within the next 3-14 years, and last 2-3 solar cycles or approximately 22-33 years. Beginning with cycle 24 but no later than cycle 25, sunspot numbers may approach a Wolf number of 50 for each of two consecutive solar cycles. It is estimated that there will be a global temperature drop on average between 1.0 and 1.5 degrees C, if not lower, at least on the scale of the Dalton Minimum. Should the minimum begin with solar cycle 24 as forecast, the bottom of the temperature curve for this predicted is forecast for the year 2031 with widespread record cold for years on either side of 2031. A start at solar cycle 25 would extend the range of the next bottom of the solar minimum to the 2031- 2044 period or more.

[13] As a result of the predictability and accuracy afforded by the RC Theory, and in the interests of the welfare of the world’s citizens, the following special note is added: This forecast next solar minimum will likely be accompanied by the coldest period globally for the past 200 years and as such, has the potential to result in world wide, agricultural, social, and economic disruption.

Answer 2

well, scientist say that to repair the ozone, we need 10 years of no pollution, nothing, no co2 emitted, no garbage, no more burning. nothing.

But we all humans are ignorant and we dont do nothing to stop it.

Answer 3

We're already half way there, just doing nothing.

Answer 4

http://www.guardian.co.uk/environment/20...

We have to remove carbon from the atmosphere. Reducing our emissions at the rates discussed by IPCC will not reduce carbon but will only slow the increase in carbon.

We have a serious serious problem. The jackasses who deny global warming are only confusing good people like you.

Answer 5

We have gone past the point of no return unless we can build improvements to assist in reflecting light away from the earth.

First you have to understand how long the earth has been storing up the fossil fuels. The coal, oil and natural gas that we are using now are products of the earth converting plants and animals into their present forms over (often) millions of years. They have been stored now for millions of years without being used until now. By being used now, we are converting these fuels from stored carbon, into released carbon. Thus allowing this released carbon to act as a greenhouse effect gas again.

Since we are talking about a situation where the Earth once had a lot of stored carbon and now that stored carbon is disappearing at a tremendous rate (and will continue into the future) We can be truthful in saying that there is a definite trend, and relationship in the increase of greenhouse gasses. We can also say that these greenhouse gasses would not have been released without the intervention of man. Logically therefore we can say that global warming gasses have been released and any global warming increases are directly attributed to mankind’s releasing them.

The damage done by increased greenhouse emissions has already taken its toll. This is evident by the melting of polar ice and glaciers across the globe. Some will say that there is no such thing as global warming, because there is in their opinion very little change in the average global temperature. However when you take into account the fact that there is less ice, and snow, because of the melting of polar ice and glaciers across the globe. That melted ice, snow and glaciers across the globe will in themselves temporarily lower the overall ocean temperatures untill they all melt. Thereby lowering the average temperatures on the earth. So if you account for that, the temperature can be proven to be increasing.

We cannot get the world back the way it was, even as of fifty years ago, much less stop the damage that will still occur in the future. Sure we could try to stop all industry that will cause pollution, but at what cost. Without industry we could not sustain the present world population. Giving up industry and sacrificing billions of people on this planet in the process, is not a viable solution (even trying to merely lower greenhouse emissions is at best a temporary solution).

The biggest problem we have now is not just the fact that we have more greenhouse gasses trapping heat in, but we are getting less and less sunlight being reflected out from the planet. As the snow cover melts from more and more of the planets surface, the sunlight heats up more parts of the earth that once reflected light back out. It is like a dog chasing its tail (until it gets dizzy and falls from exhaustion). As global warming just keeps building on itself till the ecological balance fails, and this planet will no longer sustain the teeming human populations.

Greenhouse effect cure (there are no real cures but this may help till we can find one). First I want to point out that there are no real, viable short term, or easy methods of curing our Global warming woes. The damage to the environment has already been done and is, for all intent and purposes, basically irreversible. It is likely, however, that any type of plan to get rid of Global warming, will require some type of dramatic ecological compromises.

Some will say that all we need to do is give up industry on the planet and the world will eventually go back to the way it was. I say it is too late for that solution (as a short term solution anyway).

My plan, however, will require the use of old tires and recycled plastics. Of course it will require some engineering feats also, and a few ecological compromises. The benefits of using these wasted products will far outweigh the compromises required.

My idea is to build large floating islands (white on top, to reflect sunlight back out of our planet) made from used tires (filled with co2) and recycled plastics. Yes there are engineering and ecological problems, but everyone has to admit there are worse problems in our current situation. So the only feasible solution is to build a bunch of artificial reflection "islands" across the planet.

There will be other benefits realized, once we build enough of these islands. One of the problems associated with the increased temperatures we are experiencing is the possibility of increased hurricane intensity and frequency. Having enough of these floating islands in strategic points in the oceans will help to alleviate this problem also. It is a well known fact that hurricanes form in areas of the ocean where the temperature rises above approximately 80 degrees Fahrenheit. If we can keep those areas below that temperature (by reflecting sunlight away), we can prevent the formation of hurricanes. Without these floating islands, hurricanes will probably continue to increase in intensity and frequency…

We need a solution to deal with our Global warming woes, and we need it now. Even if this is a difficult path to follow, it will pay off in the future. The overall problems I see for Greenhouse effect is that we can go green all we want, but Global warming and our constant desire to be comfortable, will eventually undermine any efforts we may do. Unless we can get rid of some of the excess heat in this world, we will always be under the eventual threat of a thermal overheating demise.

Answer 6

it would be virtually impossible to cool down the globe unless we found out a way to do something with the carbon. if we could stop mother nature & human global warming, it would take app. 200 years.

Answer 7

8 years of obama

and lots of beer

HOORAY BEER!!!!

Answer 8

Depends on your definition of cool down. Do you mean completely erase the warming man is responsible for? Probably never, because it's technically not necessary that we cut emissions THAT much, but we should get CO2 levels back down to 350 ppm. I'm not sure what that translates to temperature wise, nor long it would take. But both questions are basically inconsequential until people can convince the lunatic fringe (otherwise known as the extreme right) to stop worrying about their SUVs and pitch in like the rest of us.

I do know, though, that Obama wants to cut emissions to 20% of 1990's levels by the year 2050.

Answer 9

Depends on the sun. At the present rate of cooling, about 1 more year.

Answer 10

The sun spot activity is way down and the cooling trend has started  already.

Where I live we have not had an above ave temp day this year.

Global warming is over and we didn't have to do anything.

Answer 11

about as many years it took to warm up

Answer 12

We just came through the coldest winter ever in the northern hemisphere.  Last summer and fall were cool too.  So was this spring so far, except for the past few days.

I hope people don't plan to cool down the earth too much, overall it's been too cold as it is.   Global warming was never a factor in this though, it's caused by natural events.  So the earth warms and cools as it (and the sun) chooses.

Answer 13

that depends on what happens. the last time we had a major global cooling, it was caused by a supervolcano eruption that plunged the earth into an ice age 75,000 years ago. it took something like one year to drop temperatures enough to allow heavy glaciation, and a decade for the glaciers to form all the way down to texas. that lasted for 60,000 years. global climate change can happen in as short a time as a couple of years, or take decades, like the last warming trend took.

one problem though with global warming, is that a proper global mean temperature has never been properly established. until that happens we dont really know if global warming os bad or not.