A colleague of his based in Sierra Leone, Daniel Sarmu ... Davis started thinking seriously about how to help coffee farmers adapt to the warming planet. He hands me a photo taken in Uganda ...

"There's so little known about this coffee." Scientists discover potential solution to global crisis impacting the world's ...

This went on for days: more roads, more farms, nothing. “It was clearly not working,” Davis says. He had no choice but to start searching Sierra Leone’s forests himself. Every day, the world’s ...