Question

Scientists have observed that the Gulf Stream—a warm ocean current that moves from the Gulf of Mexico across the Atlantic Ocean toward Europe—has slowed down slightly over the past several decades.

This current is part of a larger system of ocean circulation called the thermohaline circulation, which is driven by differences in temperature and salinity.

What is the most likely effect of a slowing Gulf Stream on the climate of northwestern Europe?

(1 point)
Responses

It will become warmer, because more warm water is pushed north.
It will become warmer, because more warm water is pushed north.

It will become colder, because less warm water reaches the region.
It will become colder, because less warm water reaches the region.

There will be more volcanic activity due to changing ocean pressures.
There will be more volcanic activity due to changing ocean pressures.

There will be no effect, because ocean currents don’t influence climate.

Answer 1

It will become colder, because less warm water reaches the region.

Explanation: The Gulf Stream transports heat from lower latitudes to northwestern Europe; a slowdown reduces that heat transport, likely leading to cooler regional temperatures.