David Field from London Zoo, which already runs a wide-ranging conservation programme, says zoos can help people understand the impact of climate change, and encourage them to change their habits.

• 伦敦动物园的大卫斐德成立一个广泛的保育计画，动物园可以帮助人们了解气候变迁的影响，并且鼓励他们改变生活型态。