There may be a worldwide shift toward floating agriculture as populations rise and the availability of arable soil diminishes.

In order to feed the growing global population, one design idea for future food security is to move farming from land to the abundant oceans. London-based designers Roshan Sirohia, Jason Cheah, Sebastiaan Wolzak and Idrees Rasouli have created a concept called SeaLeaf which is a floating device like a buoy…