"I am quite optimistic with the ongoing activities, the genome, farmer training, understanding the problems, that we believe the plants will survive and thrive in the future using the techniques that we know and we can bear on the production of this wonderful crop," Shapiro said.
Similar efforts are being employed at Cadbury.
"In the last two years, Cadburys has really upped the game, to create more sustainable chocolate, cocoa supply chains particularly," Croft said. "We're managing all the factors reasonably well at the moment and there's a lot of anticipatory work going on, looking at cocoa trees that are more temperature tolerant, looking at cocoa trees that are more saline tolerant so that as climate change begins to impact them, we have crops that will work through that change."
In 20 years, he said, chocolate "will still be the world's favorite treat."