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 ...

Some 6,200 samples from 125 species of squash, chilli, tomato and other edible plants are held at the Tropical Agricultural Research and Higher Education Center (CATIE) near the town of Turrialba.