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Each of the strategies they have identified could prevent a total of 25 billion tons of emissions by 2056. (We're now adding 7 billion tons annually, and that figure would double by 2056 without some action.) They are all so-called stabilization wedges, which lower the angle of the line representing carbon-emissions growth and together would reduce CO2 emissions enough to stabilize the carbon concentration in the atmosphere. Efforts to reduce energy use form one kind of wedge. So does improving power plants. Another wedge addresses alternative energy...
...evolution of elementary and secondary schools in America over the last century largely reflects the influence of Dewey’s ideas. Schools, particularly in the lower grades, have moved steadily away from a hub-and-spoke model of education, where the only significant relationship in a classroom is between the teacher and each individual student. Today primary and secondary students participate far more actively in each other’s educations, working in small groups and holding discussions while the teacher acts as a facilitator in addition to the traditional role of direct instructor...
...long-term trend, and they are hardly "dramatic." "For youth aged 14-19 the suicide rate increased by 11%, from 7.3 per 100,000 to 8.2 per 100,000." That's less than one extra death in 100,000. And please note that 8.2 per 100,000 is still lower than the rate...
...medicines for resale to physicians. Tullman refinanced Allscripts and focused it on providing information systems to doctors. Tullman and his team believed advances in technology were increasingly moving procedures away from hospitals and into clinics and doctors' offices. "That's a big trend because you get higher quality at lower cost," he says. In some respects, the solution was early: the medical community has taken its time coming around, but the e-health industry has gathered momentum over the past couple of years, and Allscripts is now growing fast. Its sales increased 89%, to $228 million, in 2006; earnings increased...
...down, despite stories you may have seen about parents' letting their high schoolers drink. Nearly 40% of teens reported drinking in the past month in 1995; less than a third did in 2005. Plus, the teen pregnancy rate is the lowest since 1976, and the teen suicide rate is lower today than...