If they used wind power to bring up cold water from far under the ocean in the day time and spray it on prevailing winds going into land, could they make it rain more in arid regions? What weather control can be done by bringing up cold water from the deep sea?
Here are some maths: If 1cm of rain for 1 kilometer is equivalent to a cubic meter of water. 1kwh can lift 1 cubic meter by 100 meters, so an average wind turbine can lift about 6 million square kilometers of 1cm rain every year. Australia is 8 million square kilometers, so 300 wind turbines can logically make Australia rainforest if clouds worked like rivers, without the salt problem?