The completion of the Ilisu Dam will result in the destruction of more than 248 miles of the Tigris's ecosystem, lead to the relocation of up to 70,000 people, and submerge numerous settlements.
Fish can fend for their poisoned selves.
The massive project along BC's Peace River will flood an 83-kilometre stretch of the valley.
Children could be born with lower IQs for generations, scientists say.
Authorities fear at least two people are dead in floods caused by the accident.
Militants shut off the gates to Ramadi dam, cutting of crucial water supply to surrounding areas held by pro-Iraqi forces.
The site, which has been occupied since 2013, was cleared within a matter of hours Friday, but some protesters have vowed to continue the fight for the biodiverse wetlands.
An investigation is ongoing after a body was discovered near a site where thousands of activists have clashed with authorities over plans to clear woodlands near the city of Toulouse.
How the Taliban Use AK-47s and Kidnappings to Keep the Poor in the Dark