Is Global Warming Caused by Humans?

United States
March 22, 2007 8:55pm CST
They tell us we should stop burning fossil fuels because it is causing Global Warming. They say it releases CFC's into the air, destroying the o-zone. Other's say it is a cycle or warming and cooling that the Earth naturally goes through. What do you think?
1 person likes this
6 responses
@Bomber109 (202)
• Australia
23 Mar 07
All greenhouse gases are invaluable to humans as they warm the earth so that we can live on it. Humans have burnt too many fossil fuels which add too many greenhouse gases into the atmosphere- warming the earth up. The cause of global warming is mainly humans putting too many greenhouse gases into the air and destroying the ozone.
• United States
25 Mar 07
Did you know that the Earth warms and cools itself, and has many ice ages and warm periods prior to now? Its a cycle.
@adidas7878 (2013)
• United States
22 May 07
in some way we are respond for the global warming, like frezon in the fridge that we use or ac or anything with frezon in it suppose to be harmful to the ozone too, and there is other things that use by us human, we need to walk more or bike or do other things instan of driving.
@djbtol (5496)
• United States
14 May 07
There is evidence to suggest that even if humans are not primarily responsible for global warming, that we have something to do with greenhouse gas emissions. Let me explain what I mean: http://www.blogfeast.net/djbtol/time_to_limit_emissions
24 Mar 07
I think it contributes to Global Warming, whilst not necessarily causing it. The world's climate is a chaotic system and is pretty good at surviving the variations that nature throws at it - things like variations in the output of the sun, dust and gases in the atmosphere from volcanoes and forest fires, etc. - but we might end up being the straw that broke the camel's back, so to say. One thing - AFAIK combustion of fossil fuels doen't generate CFCs. These gasses are man-made refrigerants that got in to the atmosphere over the years from old fridges, leaks, etc. and reacted with high level Ozone to deplete the Ozone layer. What fossil fuels do generate is Carbon Dioxide when they burn, and also sulphur compounds - oddly enough the suphur compounds can have a slight cooling effect on teh environment, but not enough to counteract the warming. And as the sulphur compounds generate acid rain, we've tended to try and get shut of them. Methane is another greenhouse gas, mostly generated by natural processes.
• Indonesia
23 Mar 07
i think maybe the answer is yes.But not all of this condition caused by human.
• United States
23 Mar 07
Global Warming - We can do somethings to help it but it probably wont be resolved in our life time at all.
To be honest, yes. global warming is partially caused by man due to man made factories and materials that we use restore and build. I do happen to think that its partially apart of nature somethings cn be exlaned while others cant. For instance. Glaciers and the isthumus that once existed between America and Alaska...