Question of the Week: What’s one scientific fact you learned as a youngster that still affects your environmental decisions as an adult?

Each week we ask a question related to the environment. Please let us know your thoughts as comments. Feel free to respond to earlier comments or post new ideas. Previous questions.

A salt marsh is an important fishery breeding ground. Coal and oil deposits formed from plants that lived millions of years ago. So many seemingly small facts reflect just a part of the larger environment in which we live.

What’s one scientific fact you learned as a youngster that still affects your environmental decisions as an adult?