However, beneath its breathtaking beauty lies a deadly secret - it's one of the most toxic lakes on Earth.Its striking emerald-green waters are contaminated with high levels of arsenic, copper, and ...

Toxic blue-green algae can spread explosively in lakes in summer. In the event of such a toxic algal bloom, the authorities must be able to quickly take protective measures such as a bathing ban ...

The green-faced Toxie, aka the Toxic Avenger, could be seen holding his trusty mop on a boat ride down the Chicago River, which had been dyed green for festivities in the city March 15.