Ocean currents are major heat distribution mechanisms for the planet and thus have a large impact on regional climate. of the following events, which would be most likely to disrupt the thermohaline cycling of ocean currents, causing much of europe to experience much colder temperatures
a. coral bleaching releasing carbonate into the water
b. increased whale harvests removing radiant loss from mammals
c. melting of greenland ice sheets
d. addition of salt run-off from salinized middle eastern soil
e. reduced continental run-off of freshwater stimulated by drought conditions