Trees remove a lot of carbon dioxide from the atmosphere
When we lose a species, the bell tolls for us.
When we lose birds, we are witnessing the continued unraveling of nature that will leave behind a less healthy and impoverished world for the future.
We will spare nature by living in cities, but for a sustainable world, we will not pull ourselves up by our own bootstraps by living in cities.
We must look beyond the self-centered view that we are the only masters of our own survival.
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