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Welcome!
Your search for information about "are we
contributing to global warming" is
successful!
 In
1995 the world's climate experts in the IPCC in a
cautious consensus for the first time and their
conclusion: "The balance of evidence suggests that
there is a discernible human influence on the
global climate."
In their 2001
assessment the IPCC strengthened that conclusion
considerably stating: "There is new and stronger
evidence that most of the warming observed over the
last 50 years is attributable to human
activities."
There is significant
evidence that leads to the scientists
conclusion:
* The observed warming
over the past 100 years is unlikely to be due to
natural causes alone; it was unusual even in the
context of the last 1,000 years.
* There are better
techniques to detect climatic changes and attribute
them to different causes.
* Simulations of the
climate's response to natural causes ( by the sun,
volcanoes etc.) over the latter half of the 20th
century alone cannot explain the observed
trends.
* Most simulation
models that take into account greenhouse gas
emissions and sulphate aerosols (which have a
cooling effect) are consistent with observations
over the last 50 years.
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