Many farmers’ livelihoods depend on the ability to save seed varieties. ‘Farmers breed for resilience,’ says Dr Vandana Shiva, who is leading a campaign supported by the Gaia Foundation to protect seed diversity and promote food security. ‘They don’t breed one crop. They know they must have many crops because the climate changes … and because nutritional needs are diverse’

Watch the Seeds of Freedom film

For more on this story, visit: Seed diversity: a global route to food security? – in pictures | Global development | guardian.co.uk.