No program exists to predict the potential for new species—plant or animal–to become invasive upon arrival in the U.S.
Certainly providing a low-risk environment for human health carries some costs.
No matter how much carbon they assimilate, the carbon uptake by an existing mature forest is not additional,
Over a similar lifetime, electric vehicles emit about 10-24% less greenhouse warming potential than conventional vehicles
As seen for the metabolism of birds, air travel by humans carries a large energetic cost.
Let your lawn return to a wildflower-filled meadow that attracts bees and other pollinators
Humans are the largest force shaping the surface of the Earth today.