Demonstrators in Brasilia displayed a banner in Portuguese reading, “COP30: Climate can’t wait, it’s time to act,” outside a preliminary meeting for COP30 on October 14. The protest highlighted the urgency of addressing climate change.

In Rio, Prince William is set to lead the annual Earthshot Prize ceremony, celebrating significant environmental achievements over the past year.

Despite the decreasing cost of renewable energy, which has now fallen below that of fossil fuels, many nations are still trying to balance this with other priorities, such as ensuring food security and advancing artificial intelligence.

But it has so far failed to halt the rise in carbon emissions, though the pace has slowed. About 40 per cent of industrial-era emissions in the atmosphere have been released since the treaty was signed.