I spent over 15 years running an environmental consulting business in NE Illinois. One of my main income sources was providing environmental site assessments as part of the due diligence required for real estate transactions. Reviewing historical aerial photos was a part of my assessment review. If you want to see scary take a look at aerial photos of your area taken over the last 70 years (in Illinois the Soil Conservation offices had collections dating from 1938 to the present). The ongoing march of urban sprawl is horrific!

Approach life like you do a yellow light - RUN IT! (Gail T.)