But even though by some estimates it might cost the world as much
as $100 billion between now and the year 2000 to convert to other
coolants, foaming agents and solvents and to redesign equipment
for these less efficient substitutes, the Montreal Protocol's
legions of supporters say it is worth it.
REL:
foaming
Arg0:
agents
both args (-)
person: ns
tense: past
aspect: ns
voice: active
form: full