Global Warming -- the gradual increase in planet-wide temperatures --
seems to be accepted by many scientists and people now as fact.
Generally, this warming is attributed to the increase of green-house
gases in the Earth's upper atmosphere.
However, some solar scientists are considering whether the warming
exists at all. And, if it does, might it be caused, wholely or in
part, by a periodic but small increase in the Sun's energy output. An
increase of just 0.2% in the solar output could have the same affect
as doubling the carbon dioxide in the Earth's atmosphere.
What is the Problem?
What is the evidence for global warming? Certainly, there are
considerably more green-house gases (e.g. carbon dioxide) in our
atmosphere than in previous times. And there appears to be some
evidence that global temperatures are rising. But, how accurate and
correct are our global warming statistics? And, do we really know what
role, if any, the Sun might play in any global warming patterns?
These issues are currently being debated, and may significantly affect
you for the rest of your life. Would you like to do some research to
find out more about global warming?
We suggest here some research topics and places to begin looking for
information. But these are all controversial issues, and there are no
definitive answers (yet). As an informed, and voting, citizen of the
next millenium, you will need to keep listening, looking, and being
alert to new research and evidence.
Is global warming occurri...
... middle of paper ...
... reside with chapter Lead Authors... Some Lead Authors
ignored valid critical comments or failed to... reflect dissenting
views..." The report was therefore the result of a political rather
than a scientific process.
Claim: The majority of scientists believe global warming is a process
underway and that it is human-induced.
Fact: A 1992 Gallup survey of climatologists found that 81 percent of
respondents believed that the global temperature had not risen over
the past 100 years, were uncertain whether or not or why such warming
had occurred, or believed any temperature increases during that period
were within the natural range of variation. Further, a 1997 survey
conducted by American Viewpoint found that state climatologists
believe that global warming is largely a natural phenomenon by a
margin of 44% to 17%.
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