The world will officially run out [of chocolate] on October 2, 2020.
A world without chocolate?! It's unthinkable! This calls for government intervention and private action immediately! If this isn't a wake-up call I don't know what is!
http://www.dailystar.co.uk/news/latest-news/343229/We-ll-run-out-of-cocoa-in-just-SEVEN-years
I cannot imagine that this will come to pass, but it does show that our resources are being spread thin. We can't expect to have access to all of the things we take for granted today in 20 - 30 years, at least not for the prices we're used to. Even access to clean drinking water may become an issue for some of us in the future.
What do you fear will disappear or turn disproportionately expensive in the coming years? What do you see changing? Would you want live in a world without chocolate? (If all you have access to is Hershey's, you already live in that particular nightmare scenario.)