explodes the salt, which causes small water droplets to grow and to become rain( S5).
There are 50 countries which use cloud seeding. China uses it the most.( S6) For instance, the Chinese used cloud seeding right before the 2008 Olympics and it worked. It has also worked for many other countries however some countries have experimented with it without success. The United States continues to experiment with different cloud seeding techniques.
Cloud seeding can help make rain, which can help agriculture, and survival, because about 700,000 people die from droughts each year( S8), and if you multiply that number by 10, that is the number of people who die from food shortages each year.( S9) Cloud seeding can help save many lives.
There are many unique pros and cons to cloud seeding, but we are going to start with the positives.
First, it can increase rain up to 40 %,( S10) second it really does not have much environmental drawbacks; even the silver iodine technique does not use enough to become a toxin.( S1)