Statspotting

A friend shared a stat in the news

The Guardian

More than 100 companies and groups linked to fossil fuels represented at Cop31, study says

The Cop31 climate summit in Antalya is thought to be the largest ever in the three decades of the annual gatherings, with more than 92,000 delegates registered

It's in today's paper. How big is it? Four answers, and your first pick has to be right to spot it.