In response, the international community has initiated many plant conservation projects: the Millennium Seed Bank project launched by London's Kew Gardens in 2000 is estimated to have a collection of seeds totaling one tenth, or around 25,000, of the world's wild plant species as at the end of 2009, preserving them in a low-temperature, low-humidity environment.
對此，國際間已展開多項植物保種計畫：英國倫敦皇家邱園在 2000 年啟動「千禧年種子銀行」計畫，預計至 2009 年底蒐集全球十分之一、約 2 萬 5,000 種野生植物的種子，以低溫、乾燥狀態保存。