The company itself admits that the activity will cause "residual pollution" and will drive away from the area large animals such as chimpanzees, leopards and pygmy hippopotamuses.

The nations have yet to tackle the residual pollution affecting Mexico, and which has also been carried across the border through the Imperial Valley and deposited in the Salton Sea.

The city agreed to give the museum a piece of land on the south shore of the Inner Harbor under the condition that its organizers would clean up residual pollution from a copper paint factory and a whiskey warehouse that formerly occupied the site.