ABCDEWhy don't we pump seawater into deserts to revive them?
Deserts are actually very important to the worlds ecosystem. The Amazon rainforest probably wouldnt exist without the Sahara. A lot of the Sahara’s sand is made up of dead plankton and these dead plankton are blown across the seas by strong winds and eventually land in the amazon. These plankton give the soil extra nutrients and are one of the main reasons why the south Americans are so lush with life.
Your first sentence is true, the rest is disputed www.nature.com/articles/s43247-020-00071-w
Dust arriving in the Amazon basin over the past 7,500 years came from diverse sources - Communications Earth & Environment
Mineral dust deposited over the western Amazon region through the Holocene is not limited to a Saharan source and instead has diverse origins, according to geochemical fingerprinting of dust from lacustrine deposits.