When will global warming begin to have a real effect on the enviroment?
445761
It has already shown by increasing the temperature by 3 degrees centigrade.
634522
Climate change is a natural cycle for the Earth and will happen regardless of human interferance. In fact if you look at the cycles of Glaciation and Warming over the past few hundred millenia, we are probably due for a massive cooling phase, maybe even dramatic glaciation, sometime in the next few hundred years. A number of things affect this, most notably the tilt of the Earth in relation to the sun. This is effected by the cycle of the planets and their orbits, and cannot be changed or prevented. We are due, and when it happens it is likely that large portions of the northern hemisphere will become covered in glacial ice, as happened about 20,000 years ago, and lasted until about 8,000 years ago. The mini-glaciations happen in about 10,000 year cycles, so our current warm period (an inter-glaciation, not a warm period) is due to end soon. \nOne of my archaeology professors said to me once that it may well be deemed that the breif delay in this caused by carbon emissions may be deemed the greatest attempted effort of human engineering well in the future.
1019295
Global warming is happening, make no mistake about it.  This natural cycle that we're going through seems to be accelerating.  Is it due to humans?  Quite possibly.  Can we do anything about it?  Maybe, but will it have a dramatic effect?  Who knows.\nNobody in their right mind believes we are going to "destroy" the planet.  At worst we'll just make it uninhabitable.
584
Global warming is the theory that the Earth's atmosphere and oceans are getting warmer due to pollution and other environmental factors induced by humans.\n\nSome of the factors include burning fossil fuels (oil) and deforrestation (trees remove carbon dioxide from the atmosphere).\n\nThere's discussion that if the effects of global warming aren't counteracted, ice caps will melt, sea levels will rise, and weather patterns could be altered. \n\nLow-lying coastal cities such as Bangladesh or New Orleans could be wiped out within the next 100 years as sea levels rise. Weather patterns could be altered, bringing drought to areas that used to have lots of rain, and rain to areas that used to be arid.\n\nRead any of the sources below, and you'll find more information about the causes and potential effects. It's definitely something that shouldn't be ignored.
356935
it's possible considering all the rapid global warming that has been occurring all over the world. i doubt it's gonna happen anytime soon but if we continue to dump so much toxic wastes into the air as well as greenhouse gases, it's gonna come much sooner than we think =/
42706
The impact of global warming on the US economy.
27420
GLOBAL WARMING!!! this is a big issue. you could research a lot on that. or you could do the war in Iraq.
346931
We are already seeing the effects. Read Bright Dawn, dark future  it was published in the early 90s but predict several events that have happened since do to GLOBAL WARMING!!!
157711
It is Global Warming.  Geologically speaking we are still coming out of the last ice age.  We are on in a natural cycle which has been accerated by pollution.
998066
Global warming is the term used to describe how the average temperature of the planet is going up. No one denies that the temperature is, in fact, going up. Therefore, no one denies that global warming is a fact.\n\nHowever, according to studies of Antarctic ice, the average temperature of the planet has been rising for 6,000 years, which is well before the Industrial Revolution of 150 years ago. This proves that global warming is not caused by man. In that time, however, the rate of temperature rise has increased, which means that the actions of humanity probably has worsened the situation.\n\nThe critical facts about global warming are these:\n\nWhat are the effects of global warming going to be, and how can we prepare for them? Currently, no model of global atmospheric projection has shown itself to accurately predict to any degree the general weather patterns of the Earth (such as the number and ferocity of hurricanes). Until we come up with an accurate way of predicting the effects of global warming, preparing for them will be difficult and based upon conjectures, which are a difficult sell to taxpayers.\n\nWhat can be done to limit the effect of humanity on global warming in the future WITHOUT putting a major damper on economic growth and development, especially in developing nations? For example, all nations could agree to stop driving vehicles that use internal combustion engines, but to do so at once would devastate the economies of many nations. However, other options, such as diverting tax funds to subsidize the development of alternative-energy propulsion for vehicles, would accelerate the advent of such earth-friendly technology.\n\nAll in all, because of the massive stakes involved when discussing global warming (and the subsequent misinformation flying around about it), many people are confused as to the facts about it. I was hoping to be as informative and unbiased as possible.\n\nPlease let me know what you think!
163435
it sounds like you're talking about global warming. it's very likely that the oceans will rise significantly and that the coastline of all the continents and islands is gonna change considerably. the latest I've heard is not 3' in the next 30 years but maybe 1'.
592712
it is the greenhouse effect that causes global warming.
410198
nothing really.\n\ntake a look at the climate statistics in last 200,000 years and you will see the changes happening currently is negligible compared what happened in the past.\n\nit does not mean tough times are not ahead, with global warming sea levels will rise up 30+ feet. \nBye bye Venice unfortunately... Probably that will be the least of our problems. Warm water currents will be disrupted severly and Northern, Western Europe will be frozen...\n\ni still believe in an eternal balance.. as long as we human beings dont push it too hard it should manage to find a equilibrium of its own.\n\ngood luck and dont buy a house near the coast line.
675468
Not really but in fact the bigger problem is not CO2 but CO. Never the less you know that CO2 levels have suffer a cycle since the beginning earth however since the Industrial revolution they climbed hugely the climate has already changed. At least in my part of the planet it is hotter generally I notice it, my parents did and my friends in general, but it is the older people that notice it the most. The climate is cyclic, sometimes it makes things from 100 to 100 years and at the beginning one thought it might be that but it’s not it’s really a matter of global warming. (I am portuguese to now more about the fire in summer consult the web or see it in CNN in the summer), it is real and it is now
300396
When oil is almost depleted and the cost to process and distribute is exuberantly high.\n\nEither that... Or when people around the world starts refusing to use cars that exacerbate the effects of global warming.... Nahh...it'll never happen.\n\nThe oil companies will just run incessant commercials that will emphasize the "benefits" of global warming...
579795
global warming. ince caps melt, sea levels rise, land submerged
984253
I'm very skeptical of global warming. When I was a kid back in the seventies the conventional wisdom was there would be a new ice age sometime around the year 2000. It was even a front page story in Time magazine. Fool me once...