
The UN's top climate change official Yvo de Boer has quit in frustration, hammering a final nail in the coffin for the hopes of a meaningful international agreement after the disastrous Copenhagen summit.
Y
One of the brightest stars of international diplomacy, was appointed four years ago by former UN Secretary General Kofi Annan.
Despite a forceful personality and a capacity to put a positive spin on the most downbeat events, he could not in the end deliver an agreement. He is known to have been frustrated by the inability of the UN system to deliver an agreement despite the urgency of the need.
