Greenpeace environmentalists block chlorine production at Solvay's plant near Zurich, Switzerland. Around 30 activists block chlorine production at the plant claiming it is harmful to the environment and to the population. The activists hanged a banner from a building of Solvay's plant reading: 'ES GEHT AUCH OHNE GIFT - SOLVAY STOP CHLOR' translated in English: 'NO MORE POISON - SOLVAY STOP CHLORINE'.