What do Leonardo DiCaprio, Brad Pitt, Stella McCartney and Gisele Bundchen have in common with Ruth Yeoh, Yasmin Rasyid, Serina Hijjas, Aishah Sinclair, Gurmit Singh, Faizal Parish and Christine Das?
Well, they are all warriors for Mother Nature. And while the first four are global celebrities, the rest enjoy a comparatively more low-key name recognition.
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