Which of the following statements with reference to the Montreal Protocol is incorrect ?
1
The Protocol has a mechanism to facilitate financial aid to developing countries to achieve their commitments under the protocol.
2
Chlorofluorocarbons (CFCs) are the only substances controlled by the Montreal Protocol.
3
The Montreal Protocol has been effective in reducing the concentration of ozone depleting substances (ODSs) in the atmosphere.
4
The goal of the Montreal Protocol is primarily to protect human health by protecting the Earth's ozone layer.