Original sentence: Generally the cost of removing salt from seawater will be about 3-5 times that of removing salt from brackish water
Edited sentence: Generally the cost of removing salt from seawater will be about 3-5 times that of removing salt from brackish water unless and until green, renewable energy can be used where the cost is shifted from burning fossil fuels to capital cost by geothermal wells where the renewable energy is inexpensive once the capital expenditures have been made.It is imperative that renewable energy be used since desalination will remain energy intensive and fossil fuel supplies are limited