It's a big world out there In 1992, the leaders of 153 nations met in Rio de Janeiro at the Earth Summit, where the Biodiversity Convention was first proposed. So far 180 countries have signed, making it the most widely endorsed environmental treaty in history.
一九九二年，一百五十三國領袖在巴西里約舉行的「地球高峰會議」中，首度簽署「生物多樣性公約」，如今已有一百八十個國家加入，成為國際上最大的保育公約。