BlackRock will more than double the number of companies it engages with over climate-change concerns next year, meaning more of the biggest polluters face voting action from the world's largest asset manager if they fail to take action.

In its stewardship expectations for 2021 report, published on 10 December, BlackRock said it will increase the number of carbon-intensive companies it engages with to more than 1,000 next year. That is an increase from the 440 companies BlackRock said in January it would take tougher action against over climate-risk failures.