The greatest environmental threat is the continuation of urban sprawl, which threaten forests and other protected areas.

But Congress still has before it a score of proposals that threaten national forests, rangelands and other public spaces.

Hotter, drier weather could increase the frequency and intensity of wildfires, threatening both property and forests.

The same danger threatens forests all over the West.

Not only would this measure threaten forests, farms, water and wildlife, but it could have the unintended consequence of leading to even higher property taxes.

Some New Yorkers worry about acid rain, which has rendered hundreds of Adirondack lakes lifeless and may threaten forests throughout the Appalachians.

In recent times, we have witnessed disasters and storms threatening forests.

A number of risks and practices are threatening forests, wildlife, wetlands and the environment.

Only in recent years did the population grow large enough to threaten forests.

It threatens forests as well.