b) The environmental revolution has been almost three decades in the making, and it has changed forever how companies do business.
c) In the 1960s and 1970s, corporations were in a state of denial regarding their impact on the environment.
d) Then a series of highly visible ecological problems created a groundswell of support for strict government regulation.
a) In the United States, Lake Erie was dead; in Japan, people were dying of mercury poisoning.
e) Today many companies have accepted their responsibility to do no harm to the environment.
