How does the ocean conveyor belt affect the climate in eastern Africa?

Research suggests that the conveyor belt may be affected by climate change. If global warming results in increased rainfall in the North Atlantic, and the melting of glaciers and sea ice, the influx of warm freshwater onto the sea surface could block the formation of sea ice, disrupting the sinking of cold, salty water.

Explanation:

doctrine that the us had the right to expand throughout north america.

i think the answer to your question is: settlement of the interior and economic growth. ( ^_^)／