Brazil's first lady, Janja Lula da Silva, swore at billionaire Elon Musk during a G20 social event on Saturday.

Brazil's first lady, Janja Lula da Silva, swore at billionaire Elon Musk during a G20 social event on Saturday at which she spoke about the need to regulate social media to rein in misinformation. A ship's horn sounded as she spoke and she joked,

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Diplomatic tensions over global warming will take center stage at the G20 summit in Brazil this week, as negotiators at U.N. talks in Azerbaijan hit an impasse on climate finance that they hope leaders of the world's 20 major economies can break.

Diplomatic tensions over global warming will take centre stage at the G20 summit in Brazil this week. Heads of state arriving in Rio de Janeiro on

With negotiations on climate finance in Baku at a standstill, leaders are turning to the G20 meeting in Brazil for a breakthrough .