Flooding can convert soils from a methane sink to a methane source to the atmosphere
The Decline and Fall of Insects
If low levels of insecticides, many of them endocrine disruptors, are involved, humans are certainly exposed as well
Chesapeake Bay: work in progress
It is the juxtaposition of the land and sea that makes estuaries so productive
Exotic Plants
No program exists to predict the potential for new species—plant or animal–to become invasive upon arrival in the U.S.
Breast feeding
Certainly providing a low-risk environment for human health carries some costs.
Additionality
No matter how much carbon they assimilate, the carbon uptake by an existing mature forest is not additional,
Life-time side-by-side comparison: Electric vs. gasoline automobiles
Over a similar lifetime, electric vehicles emit about 10-24% less greenhouse warming potential than conventional vehicles
Your Lawn II
Let your lawn return to a wildflower-filled meadow that attracts bees and other pollinators
Moving Stuff Around
Humans are the largest force shaping the surface of the Earth today.