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Dec 22, 2014
1:45 am
Lima climate talks 2014 12 18
Some negotiators were jubilant. Many environmentalists were furious. What does the draft agreement reached by the UN climate talks actually mean?
Dec 18, 2014
2:57 pm
Trekking to a lost Inca ruin
Correspondent Simeon Tegel crosses one of the world's deepest canyons to reach a mysterious Inca citadel.
Dec 12, 2014
1:15 am
Tuvalu climate change 2014 12 11
'They say Tuvalu will be gone in about 15 years.'