By Jake Spring and Lisandra Paraguassu RIO DE JANEIRO (Reuters) -Diplomatic tensions over global warming spilled over into the G20 summit negotiations in Brazil this week, with sources saying the 20 major economies reached a fragile consensus on climate finance that had eluded U.

Nations returned Monday to the negotiating table at deadlocked UN climate talks in Azerbaijan, but with time running out hopes of a breakthrough are pinned on G20 leaders meeting in Brazil.With the clock ticking,

United Nations talks on getting money to curb and adapt to climate change resume Monday with fresh hope that negotiators and ministers can work through disagreements and hammer out a deal after slow progress last week.