Carbon Dioxide Emissions Are Considered to Be a Negative Public

Carbon dioxide emissions are considered to be a negative public good because

A) nobody can have less of them because somebody else has more; and nobody can be excluded from their destructive consequences.
B) individuals can be excluded from their negative consequences.
C) firms will be able to capture the returns from their development of new abatement technology.
D) all countries will have to bear the costs of carbon dioxide abatement.