The largely unchecked digital platforms, the advertisers that fund the internet, and regulators must all work together to delegitimise dangerous climate denial narratives, argues David Puttnam, Chair of the House of Lords Select Committee on Democracy and Digital Technologies.

Why it matters

Tackling the existential risks caused by climate change is even harder when disinformation is disseminated online. Adverts that appear next to misinformation can legitimise it and have the effect of undermining a brand’s own sustainability goals and reputation.

Key takeaways

• To date, big tech and regulatory bodies’ response to misinformation on their platforms has been neither urgent or...