One for you here Lily

The index has been developed by the risk analysis company Maplecroft for governments, NGOs and business to use as a barometer to identify those countries which may be susceptible to famine and societal unrest stemming from food shortages and price fluctuations. This map shows the results of evaluating the availability, access and stability of food supplies in 197 countries, as well as the nutritional and health status of populations

Food prices: 'Bread, coffee and fresh fruit have become a bit of a luxury' Affordability is now the key factor for grocery shoppers, with ethical considerations least important

UN warns of looming worldwide food crisis in 2013 * Global grain reserves hit critically low levels * Extreme weather means climate 'is no longer reliable' * Rising food prices threaten disaster and unrest

China's ruling Communist Party meets from 8 November to rubber-stamp sweeping changes that will put in place the country's leaders for the next 10 years. Here are eight reasons - eight being an auspicious number in China - why the world should pay attention to what happens in the secretive corridors of Beijing's Great Hall of the People.

US drought, rain in Europe and erratic weather in Asia have reduced yields, but harvests in the far east may break records

The rise of megacities - interactive By 2025, the developing world, as we understand it now, will be home to 29 megacities. We explore the latest UN estimates and forecasts on the growth of these 'cities on steroids', and take a look at the challenges and opportunities megacities present for the tens of millions living in Lagos, Mexico City and Dhaka

Thanks largely to vehicle emissions, Mexico City was once the world's most polluted urban centre. But over the past decade, a focus on sustainable alternative transport has persuaded a growing number of citizens to leave their cars at home. A heavily subsidised underground network caters for 22m journeys daily, and conditions on the city's overcrowded roads have improved, with the metro bus system and the introduction of public bicycles contributing significantly to reduced pollution levels

Thanks again to Sarah Gibson

thanks again to Sarah Gibson

care of Sarah Gibson

The clock is ticking. Every second, it seems, someone in the world takes on more debt. The idea of a debt clock for an individual nation is familiar to anyone who has been to Times Square in New York, where the American public shortfall is revealed. Our clock (updated September 2012) shows the global figure for almost all government debts in dollar terms.