How does increased air temperatures affect salinity of the oceans and the great ocean conveyor belt?

1. Increased air temperatures decreases the salinity of the ocean since more ice is
melting adding more freshwater to the oceans, therefore slowing down the great
ocean conveyor belt.

2. Increased air temperatures decreases the salinity of the ocean since more ice is
melting adding more freshwater to the oceans, therefore speeding up the great ocean
conveyor belt.

3. Increased air temperatures increases the salinity of the ocean since more water is
evaporating into the atmosphere, therefore slowing down the great ocean conveyor
belt.

4. Increased air temperatures increases the salinity of the ocean since more water is
evaporating into the atmosphere, therefore speeding up the great ocean conveyor
belt.