There are some monuments where the land is so widespread, they just encompass as much as possible. And the integral part of the - the precious part, so to speak - I guess all land is precious, but the part that the people uniformly would not want to spoil, will not be despoiled. But there are parts of the monument lands where we can explore without affecting the overall environment.
George W. BushConcentration of greenhouse gases, especially CO2, have increased substantially since the beginning of the industrial revolution. And the National Academy of Sciences indicates that the increase is due in large part to human activity.
George W. Bush