Poorer countries disappointed with latest COP29 offer

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The offer proposes wealthier countries give $250bn per year by 2035 to developing nations to help tackle climate change. We find out more. The world's largest man-made reservoir, Lake Kariba, has been hit by drought. We hear about the consequences this could have in the economies of Zambia and Zimbabwe. Bitcoin has been on a streak of almost daily all-time highs since the US election. We find out why.