World food/water/energy crisis "by 2030"

Just finished reading Make Room Make Room, the Harry Harrison book upon which the film Soylent Green was based. I can heartily recommend it as a challenging piece of apocalyptic dystopia, describing a world starved and parched by rampant overpopulation and mismanagement of resources. It came complete with an afterword by Harrison in which he said he 'hopes he's proved wrong'

Well, according to "the UK government's chief scientific adviser" John Beddington, the world is doing all it can to make sure he's not ...

The BBC is reporting Beddington's warning of a possible 'perfect storm' crisis in 2030.

As the world's population grows, competition for food, water and energy will increase. Food prices will rise, more people will go hungry, and migrants will flee the worst-affected regions.

Specifically, he points to research indicating that by 2030 "a whole series of events come together":
The world's population will rise from 6bn to 8bn (33%)
Demand for food will increase by 50%
Demand for water will increase by 30%
Demand for energy will increase by 50%