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...hard to see how. Earlier studies exposed corn ethanol as a carbon catastrophe; the EPA had to use extremely generous assumptions to produce scenarios in which it's even remotely attractive as a fuel alternative. In any case, the heavily subsidized corn-ethanol industries won't really be penalized for promoting deforestation and accelerating global warming; Congress exempted its existing plants from any consequences in the 2007 law requiring the stress tests. At her May 5 news conference with Energy Secretary Steven Chu and Agriculture Secretary Tom Vilsack, Jackson suggested this was a good thing, because corn ethanol...
...draft conclusions announced by Environmental Protection Agency (EPA) administrator Lisa Jackson were that cellulosic ethanol and other next-generation renewables will dramatically reduce greenhouse-gas emissions over their entire life cycle, but that in some scenarios, corn ethanol (as well as lesser-used soy biodiesel) can produce even more emissions than gasoline. Some environmentalists and journalists have portrayed this as a courageous rebuke to the powerful agro-fuels lobby, while some advocates for farmers have complained that the stress tests were too tough. At a hearing after the announcement, House Agriculture Committee chairman Collin Peterson, a Minnesota Democrat, accused...
...industry is already almost there. That is why the real stress tests that mattered were the ones concerning biofuels of the future like cellulosic ethanol grown from switchgrass - which has not been proven commercially viable but has been hailed as a kind of magic weed. Once again, the EPA used rosy life-cycle assumptions to conclude that next-generation biofuels will reduce billions of tons of emissions over the next century, ultimately reducing our oil consumption by 11%. If those draft conclusions become final, they will commit the U.S. to an additional 21 billion gallons of biofuels...
...eligible for support, corn ethanol has to emit 20% less climate pollution than gasoline. If you include the indirect land-use effects of ethanol - the increase in deforestation caused by using land to grow fuel - it's unlikely to hit that target. On May 5, the Environmental Protection Agency (EPA) released a proposed rule that would take into account indirect land-use effects when judging just how green corn ethanol is. Unless the rule is changed - the powerful corn lobby will be working hard to make that happen - corn ethanol might not meet Congress's requirements, which could spell...
...tiny solid and liquid particles (of varying sizes) in the air. The particles are visible only in the haze and smog we see but hard to keep out of our bodies because of their minuteness. The study describes, in part, how cities and counties fare when measured against EPA ozone pollution standards imposed in March 2008 (spoiler alert: not well), details the ways in which cities have improved or worsened, and provides recommendations for the future. (Read a Q&A with EPA head Lisa Jackson...