Actions to Save Biodiversity and Us
To save the biodiversity lost from cocoa production, buy chocolate with the Rainforest Alliance logo or certification. The organization itself certifies certain brands that do not support the destruction of cultivating chocolate and child labor. Another way to help is to buy chocolate that has less sugar. Doing so will hopefully lower sugar production(which is, again, a main ingredient of chocolate candies).
Alternatives such as Carob, a cocoa bean substitute can be used. It doesn't quite taste quite like chocolate, but it is almost the same. It is naturally sweetened, sweeter than regular cocoa, therefore, does not need much sugar. It is still not popularized.