Over in Brussels, a heated debate is underway about a sensible new proposal to cap the amount of food that is burnt as biofuels. But so far, a number of European energy and environment ministers including UK Energy Secretary Ed Davey cannot see the need for such a cap.

The UK, as one of the richest countries in the world, has the power and resources to act both at home and abroad. We do not have to choose between the two. And, central to the IF Campaign, we must also tackle some of the systemic causes of hunger.

The biofuel in British petrol tanks could feed 10million people; across the EU biofuels could feed 185million people. This 'perfect storm' of declining supplies from climate change and rising demand from biofuels has dire consequences.

Let me ask you a question. If you had nothing left in your larder apart from one meagre ingredient, would you use it to feed your family, or turn it into petrol to fuel your car? The answer seems pretty clear to me.

As next week's G20 summit approaches, David Cameron will be heading off to Mexico to join other world leaders in discussions on how to stop the food crisis that already means Fatou is just one of a billion people going hungry.

Contrary to initial hopes that biofuels would help us tackle climate change, the UK's planned use of biofuels will make climate change worse by increasing UK greenhouse gas emissions. This will potentially having the same effect as adding - yes adding - another six million cars to Britain's roads.

I am writing this blog from Tanzania where, on Friday I met some villagers from Kisarawe, which is a three-hour drive north west of Dar es Salaam. The villagers have been affected by a massive landgrab by a British company called Sun Biofuels.