标题：Defenders View: Earth Day at Middle Age: Time to Recommit
其他标题：The first Earth Day was conceived by the late Senator Gaylord Nelson as a day of learning. In response, schools nationwide organized environmental “teach-ins.”
摘要：When friends reach 40, we celebrate their arrival at middleage with black birthday balloons and gag gifts. We joke thatthe best is behind them and they’re “over the hill.” Butthose of us who have passed this milestone view itdifferently, convinced that at 40, one’s best years are stillahead.
