In the tropical mountains of Costa Rica, scientists guard a treasure trove of seeds collected over decades as a bulwark against food insecurity and climate change. Some 6,200 samples from 125 ...

A seed bank in Costa Rica stores over 6,200 seed samples from 125 species of edible plants for up to 40 years. Picture: Ezequiel Becerra It holds seeds from 57 countries, with around 90 per cent ...