A new report from the Royal Botanic Gardens (RBG), a prominent research and education institution based in the UK, says that many factors, including deforestation, climate change and urbanisation, could cost global agriculture $540bn per year.

At the Millennium Seed Bank, an international botanical initiative coordinated by the RBG in the UK, scientists are spearheading an effort to better protect the world's flora.

Al Jazeera's Nick Clark reports from Wakehurst, England.

United Kingdom, Environment