Salmon farming harming marine life and costing billions in damage

Report says pollution, parasites and fish mortality rates cost an estimated $50bn globally from 2013 to 2019

Salmon farming is wreaking ruin on marine ecosystems, through pollution, parasites and high fish mortality rates which are causing billions of pounds a year in damage, a new assessment of the global salmon farming industry has found.

Taken together, these costs amounted to about $50bn globally from 2013 to 2019, according to a report published on Thursday.