The Earth's global climate arose as an issue due to (relatively) rapid human-caused climate change. See the separate page on the history of that issue. This page deals only with current options, positions and solutions.
Such changes can come from internal processes, be driven by external forces or, most recently, may be caused by human activities. The balance of scientific opinion finds that the most likely outcome of human induced climate change is overall global warming from the impact of greenhouse gas on Earth's atmosphere: More carbon dioxide, methane and other greenhouse gases are released annually into the atmosphere today than in the pre-industrial era, mainly due to the combustion of fossil fuels.
Global warming is not predicted to be a universal outcome: some related impacts include slowing or potentially stopping the Gulf Stream which warms Northern Europe especially France, Ireland, the UK, Norway, Sweden, the Netherlands and Denmark. In these nations climate could be drastically colder - more like Labrador which is at their latitude.
The Intergovernmental Panel on Climate Change had concluded by 2002 that 3.5 billion people would be affected by the middle of this century, almost all of them for the worse. More recent reports on the West Antarctic Ice Sheet and Greenland Ice Sheet suggest that the estimate is too low, and the likely impact of climate change much more significant, with possible sea level rises of 6m in this century.
Accordingly climate change is thought to be a major component of the ecology crisis.
Media feeds on contreversy or requires presenting diverse point of views. Thus it gives an unproportional voice to scientists who dissagree that climate change is happening or that humans are mostly responsible for it. Hence, when the media could give the impression that half of the scientific community dissagree, only an actual tenth of it dissagrees.
[+] Put a Right to clean air in the Canadian Charter of Rights
[+] end civilization
[+] get beyond kyoto
Climate Action Network Canada
Federation of Canadian Municipalities
I saw An Inconvenient Truth on June 13th (reviews: http://www.imdb.com/title/tt0497116/externalreviews). During one point in the movie, Al Gore says that people have gone through political victories (Ghandi, French revolution, American Independence, abolition of slavery, etc.) to prove that we can overcome this political obstacle. He then asks us to use the existing political system to bring change in response to the climate crisis. Understandably, he stops short of asking himself and his public what are we trying to free ourselves from this time? (Despite this, the movie is worth the watch). I would not dismiss the solution he proposes. Still, the question begs to be asked: what are we trying to free ourselves from this time? The rule of transnational corporations?