IPFS News Link • Environment
Utah Lawmaker Says Atmosphere Needs More Carbon Dioxide Emissions
• http://www.popsci.com, By Douglas MainThe bill was aimed at clarifying the definition of the term "air pollutant," and would exempt "natural" gases and prevent state standards for carbon dioxide below 500 parts per million, which is far above the current level, near 400 ppm. But the bill hit stumbling blocks, such as the "undeniable" evidence that naturally-occurring radon (and xenon and cyanide) pose a threat to human health. Those pesky facts.