A chocolate shortage is on the horizon as the cacao tree, on which cocoa beans are grown, can only survive in humid rainforest conditions.

The delicate plant is under threat as rising temperatures is sucking moisture from the soils where the tress grow.

This has led experts to believe that by 2050 the plant will be impossible to grow – particularly in the Ivory Coast and Ghana where more than 50 per cent of the world’s cocoa is produced.

As a result, farmers will have little choice but to move their cacao trees to higher grounds, but competition for places will be fierce as there is limited spaces.