One group says there's a straightforward way to make big progress in the fight against climate change: Everyone, everywhere should just stop eating meat. And all animal products.
A record 500,000 people have signed up to the Veganuary challenge to eat only plant-based foods for a month. The milestone is double the number who pledged to go vegan for January in 2019.
A host of musicians, actors and sports stars have joined up with businesses and environmental groups in what they hope will be a successful push to get more people to ditch meat, fish and dairy in the new year.
