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.
Numerous studies show declines in species diversity when soils are fertilized.
Most folks don’t realize it, but the roots of plants are connected underground by a vast network of fungi that improve the function of plant roots
The purchase and upkeep of exotic plantings is often misguided.
production of wood pellets for fuel is likely to put more CO2 in the atmosphere and maintain less biodiversity on the land during the next several decades.
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.