|Buck Canyon, Canyonlands National Park / Blogger's photo|
Third, from the first and second, let's remember that this is why many environmental controls are statutory — due to human nature, they have to be; they wouldn't work as voluntary controls.
Fourth, and also per that photo, let's remember that places we designate as national parks or similar, at least the more popular ones, can be overused and overloved.
Fifth, at the same time, let's not romanticize, in America, the pre-European past too much. American Indians extensively managed and controlled much of their natural surroundings.
Sixth, let's remember, in the wake of things like urban flooding, that Earth Day was founded as a wake-up to urban, developmental-related environmental problems.