Frontiers in Science Public Lecture SeriesGlobal Warming Is climate warming
and, if so, are humans contributing to this by emitting carbon dioxide
and other so-called greenhouse gasses (GHG) into our all-too-thin atmosphere?
These are difficult questions to answer and the uncertainties abound.
But ever increasing evidence suggests that the answer is yes. Realizing
what such an answer would mean in terms of how humans generate energy
(most of it comes from fossil fuels which has carbon dioxide as its main
by-product), many have called for much greater certainty before society
is asked to make large changes in its way of producing energy. Most people
are confused by the resulting arguments. Both sides seem to make good
points, while many hold that we puny humans are incapable of changing
something as large and powerful as the earth's climate.
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