Question

Which are negative effects of desalination plants in the Middle East? Check all that apply.

producing too much water that goes unused in the region
taking a large amount of energy to start and operate
causing conflicts between countries over development rights
releasing dangerous chemicals into the environment
adding a high concentration of salt back into the ocean
taking up too much valuable real estate along the ocean
A B C D E F

Answer 1

B, D, E, F

- B: Desalination is energy-intensive (especially thermal processes), so it requires large amounts of energy to run.
- D: Plants can discharge chemicals used in treatment (biocides, anti-scalants, chlorine) that harm marine life if not managed.
- E: The brine waste stream has much higher salinity than seawater and can locally increase ocean salt concentration, damaging ecosystems.
- F: Coastal plants and associated intake/outfall infrastructure occupy shoreline/land that could be used for other purposes (tourism, habitat, development).

A and C are not typical negative effects: desalination rarely produces "too much" unused water (plants are sized for demand), and desalination generally reduces reliance on shared freshwater rather than causing transboundary water conflicts.