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.

In April the World Bank governors endorsed two historic goals: to end extreme poverty by 2030 and to ensure that prosperity is shared. It will take a lot to end poverty: strong growth, more infrastructure investments, increased agricultural productivity, better business environments, jobs, good education, and quality health care. We have to do more of this in tough places, particularly those that are fragile and conflict-affected.

Just 9% of the millions of tonnes of fish caught by China's giant fishing fleet in African and other international waters is officially reported to the UN, say researchers using a new way to estimate the size and value of catches.

Fisheries experts have long considered that the catches reported by China to the UN's Food and Agriculture Organisation (UNFAO) are low but the scale of the possible deception shocked the authors.

The energy game is rigged in favor of fossil fuels because we omit the environmental and health costs of burning coal, oil, and natural gas from their prices. Subsidies manipulate the game even further. According to conservative estimates from the Global Subsidies Initiative and the International Energy Agency (IEA), governments around the world spent more than $620 billion to subsidize fossil fuel energy in 2011: some $100 billion for production and $523 billion for consumption. This was 20 percent higher than in 2010, largely because of higher world oil prices.