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...Since developed countries have already pumped out a large proportion of the greenhouse gases that the environment can safely handle, they argue, those same nations must vacate some atmospheric space for the latecomers to industrialization. The current concentration of carbon dioxide in the atmosphere is 380 parts per million (ppm), 72% of which has been emitted by developed countries. Most scientists agree this needs to be stabilized at 450 ppm or less, leaving a tiny wedge - about 70 ppm - in which the developing countries must jostle for space to industrialize and pollute. (Read a story about how India's cows...
Meanwhile the science on climate change grows more dire. James Hansen, NASA's climate expert, reported in a recent paper that the world needed to stabilize carbon in the atmosphere at 350 parts per million (ppm) to avoid the worst effects of warming - a more stringent goal than earlier estimates, which had a target of 450 ppm. (The current concentration is 385 ppm and rising fast, up from a pre-industrial level of 280 ppm.) That would require action that is far more ambitious than currently seems possible - both in the U.S. and in the developing world, where the bulk...
...2050—a promise that President-Elect Barack Obama reaffirmed on Tuesday that he will uphold.McKibben’s newest initiative stems from research by NASA’s top climate scientist, James E. Hansen, that carbon dioxide levels should be limited to 350 parts per million (ppm) in order to ensure a climate agreeable to civilization. That calls for a sizable reduction from the current level, which is 385 parts ppm.Titled simply “350,” the project aims to influence policy-makers at an international climate conference in Copenhagen next December to adopt...
...complete results and use the statistical proof of their superiority as leverage with advertisers.But all this is about to change. Arbitron is officially entering the 21st century and revolutionizing the ratings game with the introduction of a pager-like device called the Portable People Meter (PPM). The PPM supposedly “detects inaudible codes embedded in the audio portion of media and entertainment content delivered by broadcasters, content providers, and distributors.” The beeper-like devices are said to be more accurate, easier to use, and, according to the tech gurus at Time magazine...
...stand-alone liquid and gel air fresheners are used in nearly 75% of U.S. households, and the market has doubled since 2003 to $1.72 billion. The NRDC tested products, including those labeled "all-natural" or "unscented," and found a wide range of phthalate content, from zero parts per million (ppm) to 7,300 ppm. Many air fresheners contained a phthalate known as DEP and some also contained DBP, which are listed by the California EPA's Office of Environmental Health Hazard Assessment as a developmental toxin and female and male reproductive toxin, respectively...