The groups estimate that it could cause thousands of fatal cancers.
Natural disaster here does not cause thousands of deaths.
That would cause thousands of layoffs and have an enormous impact on living conditions in the city, he said.
On 3 December 2010 a fire caused thousands of shoppers to be evacuated from the building.
It caused thousands of deaths and left the national economy in shambles.
The drought caused thousands of trees to die thus requiring they be taken down, a process that continued into 2012.
They can destroy entire buildings and cause thousands of injuries or deaths.
It doesn't take much water to cause thousands of dollars of damage.
This dip was likely caused thousands of years ago by a glacier.
The violence caused thousands of people to flee their homes.