eli5: If we have methods like desalination, why is the world suffering from a water shortage, when 70% of the Earth is water?

Question

Even though the water is saline, to the best of my understanding, you can convert saltwater into freshwater so why is there a water crisis?

In: Biology

Answer 1

Some places in the world has the poopoo water. Some has other harmful things. Some water sources are toxin chem dumps of big cash money corporations. Just because the water doesn’t have salt, it doesn’t mean it’s free of harmful substance