The Montreal Protocal, signed in 1987 and strengthened in 1990 ?

A. attains the global optimal level of common property resource

B. minimizes free riders of public goods

C. relies on internationally tradable emission permits

D. reduces ozone depletion through the cutting of chlorofluorocarbon production

Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.

Discuss the answer or suggest a sourced correction
Thank you for contributing.
Your comment was submitted and will appear after editorial review.

Your email is used only for moderation and is never displayed. Spam, copied material and fabricated endorsements are rejected.