Activist being arrested at protest against using trash as fuel in a cement plant, which would produce toxic ash, air borne pollution and contaminated cement.

Activists blockade the gate of a Holcim cement plant to protest the proposed burning of trash as fuel, which would contaminate the cement and release dioxins.

Peaceful activists being dragged away after protesting against the proposed incineration of waste at a Spanish cement plant.

Activist chained around the wheel of a cement truck - part of a blockade of a Holcim cement plant.

Spanish police officer subduing a peaceful Greenpeace activist protesting using cement plants as incinerators.