(Bloomberg) -- The thousands of protesters who brought traffic to a halt Saturday in the Brazilian city of Belém implored leaders to act faster to tackle global warming. As United Nations climate talks enter their critical second week, the next few days will determine whether that call is heeded.

Countries’ climate ministers have arrived at the COP30 summit. They will need to bridge differences over key issues — how to accelerate emissions cuts, provide climate finance and facilitate trade — if they are to reach a deal by Friday. And it’s unclear whether delegates can follow through on a demand made by Brazil’s President Luiz Inácio Lula da Silva for a road map to transition away from fossil fuels.

The first week was characterized by a conciliatory mood and quick agreement on the agenda.

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