Before getting to the main topic of today’s post, let me say the City of Annapolis, MD, has recently done a very good deed at long last: it has banned coal tar sealant (coal tar or PAHs–polycyclic aromatic hydrocarbons) from …

“Green Think” – 2 Read more »

Before getting to new posting material, I need to update/revise my post about the air above. Turns out the U.S. EPA disagrees with the MD Department of the Environment about progress in meeting federal guidelines for air pollutants such as …

“Green Think” – 1 Read more »