Video Transcription
levels, they will have a big impact on watersheds across the country, and that in turn could save
areas from mega droughts, areas like Las Vegas. But turning back the clock is never easy,
especially given America's checkered past with these eco-engineers.
If we look at sort of exploration of North America, most of it was driven in quest of
furs and the pelts of beavers. And if you look at the old accounts in these tracts of what these