Indeed, he would later summarize his books as "the history of the American forest."

American Forests says it receives more than 25,000 donations, though not all are related to air travel.

The impact of acid rain on American forests has been a contentious subject.

He described his findings in the current issue of American Forests.

He has also written for American Forests, an environmental conservation organization.

Traditionally, poor whites have done the work of replanting American forests.

Of course, black panthers weren't native to North American forests.

The forest had contracted; now it was an American forest.

American Forests has 25,000 members, who provide a third of its financial support; the rest comes from corporate donations and foundation and government sources.

The draft report does not settle the longstanding issue of the widespread decline in some American forests.