m20.    What is the status of forests the US and Canada?

Most of the forests in parks and preserves are second-growth forests; 90% to 95% of old-growth forests have been cleared. Canada has lost 60% of old-growth forests. By 2023 all unprotected ancient forests in western Washington and Oregon will be gone.

e01.    What is biodiversity?

e05.    Where are National Parks located?

e06.    What is “wilderness” and how much do we have?

e11.    What types of old-growth forests are there?

g04.    What causes climates to change?

g05.    How are forests of geological importance?