The discovery of “plastic rocks” on a remote island in Brazil set off alarm bells in the scientific community. The finding has been described as “terrifying” and is causing concern among researchers, since it is a place inhabited by turtles and where there has been no human presence for years. According to the Archyde.com agency, researchers studying the geology of the volcanic island of Trinidad found molten plastic, interspersed with the rocks of the place, which would show the growing influence of humans on the Earth’s geological cycles.