The Warriors of Qiugang, a new video report by Ruby Yang and Thomas Lennon, documents an environmental campaign in eastern China. Sam Geall spoke to the filmmakers.

杨紫烨和托马斯•列农的纪录短片《仇岗卫士》记录了中国东部的一场环境行动， 山姆•吉尔 采访了两位制作人。

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But giving has never been easier for road warriors, thanks to several travel companies that are keen to counteract their environmental impact and donate to charitable causes.

BBC: Business travel gives back