Someone explain this to me slowly, because I'm clearly the idiot here.
We plant a Mediterranean nut in a Californian desert. It doesn't rain there, so we drain a ten-thousand-year-old aquifer until the ground itself sinks a foot a year and whole towns get shorter. The trees can't fight off fungus, so we spray the lot. They can't pollinate themselves, so every February we truck thirty billion bees across a continent and let a fair share of them die in the crush. Then we chill the harvest and sail it six thousand miles to Britain, where it rains constantly and always has, to be blitzed with water and gums and sold to you at £2.40 a carton with a green leaf on the side.
That is the environmentally friendly option.
Twelve miles down the road there's a bloke with cattle in a field. Rain falls on the hill. Grass drinks it. Cow eats grass. Nothing pumped, sprayed, chilled or shipped. No bees died. Her entire supply chain is weather.
That is the planetary emergency.
And it'll be explained to you by someone holding a carton of desert water, wearing a fleece made of crude oil.
Asking for the cow. She's been very patient about it.