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Hollywood has a thing for Al Gore and his three-alarm film on global warming, “An Inconvenient Truth,” which won an Academy Award for best documentary. So do many environmentalists, who praise him as a visionary, and many scientists, who laud him for raising public awareness of climate change.
But part of his scientific audience is uneasy. In talks, articles and blog entries that have appeared since his film and accompanying book came out last year, these scientists argue that some of Mr. Gore’s central points are exaggerated and erroneous. They are alarmed, some say, at what they call his alarmism
A panel of scientists has presented the United Nations a detailed plan for combating climate change. VOA's correspondent at the U.N. Peter Heinlein reports the strategy involves reaching a global agreement on a temperature ceiling.
Holdren, however, says even these measure will achieve very little unless they are accompanied by a global tax on greenhouse gas emissions. "We don't think ultimately society will get it right in terms of the full range and scope of activities needed to reduce greenhouse gas emissions, until there is an additional incentive in the form of a price on greenhouse gas emissions, either through a carbon tax or a cap and trade approach," he said.