Word: carbonic
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Dates: during 1980-1989
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Analyzing tree-ring data from 5,000-year-old living bristlecone pines and even older dead ones, Eddy reported in 1976 that their carbon-14 content seemed to vary in rhythm with sunspot numbers. When sunspots were rare, as they were during the Maunder minimum, the amount of carbon 14 in the tree rings increased markedly; when they were numerous, the amount decreased. The explanation: during the sun's more active periods, its magnetic field, which ordinarily deflects some cosmic rays away from the earth, expands and becomes an even greater barrier to the rays. As a result, less carbon...
Hollywood's challenge is to entertain as it informs. This fall TBS will introduce children to the cartoon villain Dr. Carbon on Captain Planet. Producer Paul Witt (Golden Girls) is developing a three-hour all-star "practical guide to saving the planet"; Witt hopes all three networks will air it simultaneously. In September a medley of pop stars will shoot Yakety Yak, a music video about recycling. Its refrain: "Yakety yak, take it back...
That fear intensified last week as the Administration appeared to be in a muddle over one of the most pressing ecological issues: global warming. James Hansen, a top scientist in the National Aeronautics and Space Administration, was all set to brief a congressional committee on how the buildup of carbon dioxide and other gases in the atmosphere could create a greenhouse effect and produce severe climate changes. Hansen believes this greenhouse warming may have already started...
...these actions were relatively noncontroversial and had no significant impact on the economy. To deal effectively with tougher issues like global warming, Bush will need to push for measures that require sacrifice and stir protest. Almost everyone agrees, for example, that the easiest way to cut carbon-dioxide emissions would be to reduce wasteful consumption of gasoline in the U.S. The Administration is expected to announce soon that by 1991 automakers will be required to raise the average fuel efficiency of their fleets to 27.5 m.p.g., up from 26.5 m.p.g. this year. That is a step in the right direction...
...nations have agreed on a timetable for meeting the ozone threat, environmentalists hope that governments will turn their attention to more intractable ecological problems. At the Helsinki conference, West Germany's Environment Minister Klaus Topfer declared that the next urgent task is to put limits on the emission of carbon dioxide and methane, which are believed to be contributing to potentially dangerous global warming...