SSC MTS EXAM

Detailed explanation-1: -There are environmental costs to desalination as well: in the emissions of greenhouse gases from the large amount of energy used, and in the disposal of the brine, which in addition to being extremely salty is laced with toxic treatment chemicals.

Detailed explanation-2: -Treatment costs are affected by salinity and overall water quality. High salinity water (e.g. seawater) consumes more energy and is therefore more costly to desalinate.

Detailed explanation-3: -Most forms of desalination are energy-intensive. Desalination has the potential to increase fossil fuel dependence, increase greenhouse gas emissions, and exacerbate climate change if renewable energy sources are not used for freshwater production. Desalination surface water intakes are a huge threat to marine life.