Make sure your trips to the recycling center are efficient
The biosphere is under pressure, when the amount of stuff produced by humans exceeds the mass of all of nature
Only with a population growth rate of zero might we have some hope for planetary stability.
Cutting food waste in half would save 8% of greenhouse gas emissions to the atmosphere—even more if we were to consume less beef in our diet.
Efficiency of resource use can lower demand, but not if the underlying population is growing and hoping to catch up in lifestyle.
All other policy actions that could be taken now won’t matter if we fail to curb climate change.
As the ocean’s stocks of fishes have been depleted under existing policy, some dramatic new changes are needed.
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.
Future generations will have no escape from the pressure of their own numbers and the stresses of a full planet.
I asked myself whether cotton vs. linen shirts, or nylon or denim pants, left a greater footprint on the environment.