I’m a journalist who just wrote about how unreliable the U.S. EPA’s air pollution estimates are and why it matters. AMA!
I’m Rachel Leven, a reporter with the Center for Public Integrity. We’re a nonprofit, nonpartisan, investigative news outlet. We just published my story that focuses on “emission factors”—the U.S. EPA’s estimates that help tell us what is in our air and where it comes from. These factors, which have been used by the federal government since before the EPA existed, impact everything from the amount of toxics that reach a community to the amount of greenhouse gases that are emitted into the atmosphere. That has major implications for our health and climate. But, according to the EPA’s own ratings, the factors are largely unreliable and rarely updated.
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