Short on arable land? One solution would be to plant…up. Singapore, a small country that imports most of its food, has now begun selling vegetables from its first vertical farm. And even while they’re more expensive the vegetables are already selling faster than they can be grown.

Just over two years since Egypt's dictator President Hosni Mubarak resigned , little has changed. Cairo's infamous Tahrir Square has remained a continual site of clashes between demonstrators and security forces, despite a newly elected president.