leaded gasoline

How the EPA Saved America

If you don’t follow political blogs, you may not have noticed Kevin Drum’s outstanding story about how the decrease in crime over the last 20 years can largely be attributed to the sharp drops in lead ingestion.  When I first heard the theory, I thought it was too good to be true, but Kevin’s story …


Another edition of good news, bad news

The bad news is about climate change (no surprise). The more we learn, the more daunting the problem appears. Cases in point: A column in the journal Nature (subscription required) provided the short version of a report issued this past spring by the California Council on Science and Technology on what it will take for …