Most comments on global warming ask the wrong question: Is this caused by human activity?
Letter writer John Brock is correct that "global warming (is) not new." ("Global warming not a new phenomena," June 4).
The fact that sea levels are rising is well-established and measured by "up to snuff" science.
The question needing an answer is: What can and should be done (to minimize sea level rise)?
The Tyndall Centre for Climate Change Research (www.tyndall.ac.uk) estimates that 2% of earth's people live less than one meter above sea level.
The U.S. can't fix this alone, but we should participate in, and even lead, the world discussion as to effective and affordable action.
Mike Wood, Tulsa
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