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oruoch Dec 21, 2012 01:47 PM
As people concerned about climate change, don't you think it is time to start considering the aspect of climate change which has taken place long before humans existed on earth and caused other species to become extinct? This is why I encourage you to visit http//:www.aaclimatechange.org for great ideas about climate change.
Replies (2)
EEA Jan 07, 2013 03:05 PM
The temperatures of the last half century are unusual in comparison with those of at least the previous 1300 years. Since the start of the industrial era (about 1750), the overall effect of human activities on climate has been a warming influence. The human impact on climate during this era greatly exceeds that due to known changes in natural processes, such as solar changes and volcanic eruptions.
oruoch Jan 08, 2013 11:40 AM
The relationship between greenhouse gases and global warming has been traced to over 100,000 years and yet the human race, homo sapiens sapiens is just about 42,000 years old. Don't you think the gases are just symptoms of climate change and not the causes. The fact of increased global warming does not necessarily meaning additional factors are at play. It may only imply the process has gained momentum and is approaching a turning point. Remember climate change is an ongoing process oscillating between ice ages and temperate climates.
 
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