Future generations will have no escape from the pressure of their own numbers and the stresses of a full planet.
The wall has costs—cultural costs for reductions in biodiversity that are the heritage of the desert Southwest.
[We need] a report card that grades plant production, soil organic matter, biodiversity and nutrient balance against our best measures of what they would be in a world without humans.
What good is a butterfly that does not tweet or titillate?
If low levels of insecticides, many of them endocrine disruptors, are involved, humans are certainly exposed as well
No program exists to predict the potential for new species—plant or animal–to become invasive upon arrival in the U.S.
Humans are the largest force shaping the surface of the Earth today.
Numerous studies show declines in species diversity when soils are fertilized.
The purchase and upkeep of exotic plantings is often misguided.
Each road creates new “edge” habitat in nature, and fragments the landscape into small units that are often less conducive to the persistence of wildlife.