Many Factors Effect Climate
Trade Winds and Atmospheric Oscillations
For thousands of years, sailors relied on ‘trade’ winds to blow their ships, loaded with cargo, from place to place across the oceans.
Trade winds are relatively predictable in terms of seasonal flow, thus empires expanded and countries were able to trade in goods and services, long before the use of fossil fueled container ships.
Trade winds affect the evaporation of water from the surface of the ocean (among other climate factors) and they are a crucial part of the monsoon cycle in the Southern Hemisphere that brings seasonal, torrential rains to most of Asia. The ‘failure’ of the monsoon season (i.e. not enough rain) means there will be terrible drought and economic disaster for countries in that region.
Dr. Madhav Khandekar grew up in India. He is a former research scientist for Environment Canada and he discusses the monsoon seasons and the fact that 3 to 4 BILLION people are affected by this phenomena.
https://climatechange101.ca/many-factors-affect-climate/