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.
The human population is more vulnerable to catastrophic pandemics than at any time since the Black Death.
It has been of great interest among plant geneticists to develop other crop plants that avoid photorespiration.
Recent press coverage of soil carbon sequestration on farms creates the dangerous impression that we can easily store a significant fraction of CO2 from fossil fuel emissions through better soil management.
Soy milk seems to leave the smallest footprint on the environment.
[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.
I asked myself whether cotton vs. linen shirts, or nylon or denim pants, left a greater footprint on the environment.
Potassium…. may emerge as problematic…. as large areas of highly weathered tropical soils….are converted to agriculture.
Policies devoted to bioenergy should be redirected toward efforts to protect terrestrial carbon stocks and recarbonize the biosphere.