The chocolate-producing plants only grow in specific locations that are within 20 degrees to the north or south of the equator. Scientists now predict that chocolate - which POTUS will sometimes eat to celebrate making important military decisions - could become impossible to grow in the coming decades because of hotter temperatures and less rain in regions where cacao plants are cultivated.
As the mercury rises and squeezes more water out of soil and plants, scientists believe it is unlikely that rainfall will increase enough to offset the moisture loss. Climate change is a huge problem for cacao growers, as Business Insider notes, and a major part of the issue stems from the cacao plant itself. Half of the world's chocolate is produced in Côte d'Ivoire and Ghana, where the plants thrive at around 300 to 850 feet above sea level and under dependably humid weather conditions. But their most important use may be in the developing world, where numerous plants that people rely on to avoid starvation are threatened by the impacts of climate change, including more pests and a lack of water.
"We're trying to go all in here", Mars' chief sustainability officer Barry Parkin told Business Insider. His team will use the revolutionary, emerging genetic engineering technology called CRISPR-Cas9.
It's all thanks to a new technology called CRISPR, which allows for tiny, precise tweaks to DNA that were never possible before.
The team are also trying to tweak the DNA of cassava to make it produce less unsafe toxins in hotter weather.More news: Liverpool line up West Ham star as potential Coutinho replacement
Since the 1990s, more than a billion people from China, Indonesia, India, Brazil and the former Soviet Union have entered the market for cocoa.
Warnings of chocolate's precarious future aren't new: Years ago, Mars cautioned that consumer demand for cocoa would exceed supply by 2020, creating a chocolate deficit.
Doug Hawkins, of Hardman Agribusiness, says part of the problem is most cocoa is produced by poor families who can not afford fertilisers and pesticides.