They have been used to track ocean circulation, among other things.

These changes will have profound implications for global sea levels, ocean circulation, regional climate, and society.

Other possible effects include large-scale changes in ocean circulation.

There are, in fact, a number of proxies for ocean circulation.

Changes in ocean circulation were the results of the climate changes.

As the continents shifted to a more modern configuration, so too did ocean circulation.

Its closing during the Oligocene had significant impact on both ocean circulation and climate.

Among the station's possible research subjects are global ocean circulation, its response to climate change and the nature of the sea floor.

In contrast, the ocean circulation showed a dramatic threshold effect.

At the lower two levels of CO2-280 and 560ppm-nothing much changes with ocean circulation.