In a rare occurrence, rights group Greenpeace on Tuesday put up a poster inside the main venue of the World Economic Forum Annual Meeting here, calling for taxing the super-rich. "Tax the super rich. Fund a just & green future," read the yellow poster with black letters held by two volunteers in green T-shirts on a balcony right outside the Congress hall minutes before the opening plenary was to begin there. Greenpeace International, whose executive director Mads Christensen is participating in the meeting, is an independent campaigning organisation that uses non-violent creative confrontation to expose environmental problems. Earlier on Monday, Greenpeace activists from various countries blocked the arrivals of the participants of the World Economic Forum in Davos, Switzerland at the Lago heliport. In a statement, Greenpeace said, "As the planet burns and the rich grow richer, the link between inequality and environmental destruction becomes undeniable. "The richest 1 per cent ..