A new four-lane highway cutting through tens of thousands of acres of protected Amazon rainforest is being built for the COP30 climate summit in the Brazilian city of Belém.

It aims to ease traffic to the city, which will host more than 50,000 people - including world leaders - at the conference in November.

The state government touts the highway’s “sustainable” credentials, but some locals and conservationists are outraged at the environmental impact.