area of the Pacific Ocean by the North Pacific Gyre. This is a less well known pollution problem than the others described above, but nonetheless has multiple and serious consequences such as increasing wildlife mortality, the spread of invasive species and human ingestion of toxic chemicals. Organizations such as 5 Gyres have researched the pollution and, along with artists like Marina DeBris, are working toward publicizing the issue. Pollution introduced by light at night is becoming a global problem, more severe in urban centres, but nonetheless contaminating also large territories, far away from towns. Growing evidence of local and global pollution and an increasingly informed public over time have given rise to environmentalism and the environmental movement, which generally seek to limit human impact on the environment. See also Biological contamination Chemical contamination Environmental health Environmental racism Hazardous Substances Data Bank Overpopulation Neuroplastic effects of pollution Pollutant release and transfer register Polluter pays principle Pollution haven hypothesis Regulation of greenhouse gases under the Clean Air Act Pollution is Colonialism Sacrifice zone References External links OEHHA proposition 65 list National Toxicology Program – from US National Institutes of Health. Reports and studies on how pollutants affect people TOXNET – NIH databases and reports on toxicology TOXMAP – Geographic Information System (GIS) that uses maps of the United States to help users visually explore data from the United States Environmental Protection Agency (EPA) Toxics Release Inventory and Superfund Basic Research Programs EPA.gov – manages Superfund sites and the pollutants in them (CERCLA). Map the EPA Superfund Toxic Release Inventory – tracks how much waste US companies release into the water and air. Gives permits for releasing specific quantities of these pollutants each year. Agency for Toxic Substances and Disease Registry – Top 20 pollutants, how they affect people, what US industries use them and the products in which they are found Chelyabinsk: The Most Contaminated Spot on the Planet Documentary Film by Slawomir Grünberg (1996) Nieman Reports | Tracking Toxics When the Data Are Polluted Environmental toxicology Articles containing video clips