The news: Nearly 4% of annual carbon emissions come from the internet, of which online advertising accounts for 20%, per boa CEO Avril Tomlin-Hood. The news comes amid brands debating whether to invest in sustainable initiatives as the current administration pulls back.

Zooming out: Sustainability has long been a core concern for advertisers.

However, President Donald Trump’s step back from climate change initiatives could cause brands to reconsider their commitment to sustainable practices, similar to how brands are reacting to federal pressures surrounding DEI initiatives.