Summary: Headlines for December 03, 2012; Climate Cliff: As Global Emissions Peak, Hopes for U.N. Climate Deal in Doha at All-Time Low; At U.N. Climate Summit in Doha, Arab Youth Activists Stage Qatar's First-Ever Climate March; U.N. Climate Summit in Qatar Brings Rare Attention to Plight of Country's Neglected Migrant Workers; Egyptian Judges Join Upheaval over Morsi's Decrees Ahead of Key Vote on New Constitution
