2points how does climate change cause the ocean's thermohaline current to slow down? a. decrease in temperature - ice melts and cools water - cool. dense water floats o b. increase in temperature - ice melts and cools water - cool, dense water sinks o c. increase in temperature - ice melts and freshens water - freshwater floats over denser salty water o d. decrease in temperature - ice melts and freshens water - freshwater floats over denser salty water