According to Mann, some crops, like chestnuts and cassava, actually produce more calories per acre than wheat.

Radical inequality, according to Shue, is when there isn’t enough of a resource and it is used almost exclusively by the wealthy.

Phenology is the study of how toxins spread in an ecosystem.

There is an option (but it is not mandatory) to purchase a $500 device that removes most pollutants from your automobile’s emissions. The following represents different possible scenarios:   Most People Buy It Most Don’t Buy It You Buy It               A               B You Don’t Buy It               C               D The best (representing the most rational individual preference) option is:

Chickens are much more “efficient” at producing meat than cows, from an energy perspective.

Longtermism is the view that we should strive for what is best for long-term environmental stability. 

Deep ecology is a non-anthropocentric environmental ethic.

Leopold specifically claimed none of the following solutions for protecting the environment would work, EXCEPT:

Virtue ethics is concerned with which of the following:

One way to understand ecosystems, claims Leopold, is that they trap nutrients on their “relentless march to the sea.”