Climate change may cause the extinction of cacao plants, which in turn means the extinction of chocolate. (techtimes.com)
Both cacao and cocoa come from the same cacao plant that all chocolate comes from. (cookeatpaleo.com)
However, since chocolates are mostly synthesized from cacao plants, its main composition is theobromine, with caffeine mainly associated with the coffee bean plant. (mypetneedsthat.com)