claim: ‘But even if an organism isn’t directly harmed by acidification it may be affected indirectly through changes in its habitat or changes in the food web.’
evidence: Singer accepted a professorship in Environmental Sciences at the University of Virginia in 1971, a position he held until 1994, where he taught classes on environmental issues such as ozone depletion, acid rain, climate change, population growth, and public policy issues related to oil and energy.