I went to the source of the world's best coffee - and saw firsthand why the industry is in trouble

Mmm, coffee.

Not only is the tangy brew one of the most widely consumed beverages in the world, its active ingredient - caffeine - is the most popular psychoactive drug on the planet.

But coffee is in trouble. The crop is highly vulnerable to climate change. According to a new report, it'll be extinct by 2080.

I recently visited a coffee farm in Costa Rica, one of the world's most desirable coffee-harvesting countries, to see why the delicious crop is on the brink of disappearing: