Assad's air force has bombed four hospitals in rebel-controlled areas in the past week.

Discarding devices that were made with mercury results in pollution that can harm everyone.

Enslaved workers are found on many farms in Brazil, and the slave drivers have many tricks to thward the law.

Due to deforestation, the remaining Amazon rain forest is so dry it is burning up.

US citizens: Call on Pruitt to protect the new, stricter standards for car milage (increased) and pollution (decreased).