Park Slope's Lydia Denworth has a must-read book coming out in March called Toxic Truth: A Scientist, a Doctor, and the Battle over Lead.

This fascinating book tells the interconnecting stories of Clair Patterson, a geochemist, who measured the composition of rock, ice, and rain in Greenland and New Zealand and Herbert Needleman, a
psychiatrist, who measured children's performance in poor urban schools.

By
the 1960s and 1970's, their work demonstrated that the world was filling up with lead, a toxic substance that was doing irreparable harm to
children.

The pair took on the  lead industry. Ultimately lead was banned from paint,
gasoline, and food packaging, beginning in the late 1970s.

By the 1990's, the lead level in Americans dropped 90 percent, an incredible achievement and one of the great public health success stories!

Meet Lydia Denworth and learn more about these heroic scientists and their important story at a book party at the Old Stone House on March 3rd at 7 p.m.