Can African farmers beat climate change?

To produce enough food for 1.3 billion people is no mean feat, but climate change is making that job even more difficult.

As the world is getting hotter, African farmers are in a race against time to find new and ingenious ways to work under increasingly extreme conditions.

Some say time has come to banish the hand hoe into a museum and pave the way for more modern and sustainable forms of agriculture.

Vanda Solange Cabral, a Malawian farmer I spoke to, has been experimenting with hydroponics – a technique that involves growing crops without soil.

But can farmers like her really start a green revolution? And even if their message is heard, can they really overcome climate change?