Vegan director James Cameron and his wife Suzy Amis Cameron penned a feature published this week in The Guardian wherein the couple outlined the environmental degradation caused by animal agriculture. “Animal agriculture is choking the Earth,” the Camerons stated, “and the longer we turn a blind eye, the more we limit our ability to nourish ourselves, protect waterways and habitats, and pursue other uses of our precious natural resources.” The couple explained the personal choices they have made—such as serving an all-vegan menu on the set of Avatar—in the previous five years to reduce their environmental impact. The couple urges political leaders to help fight climate change by urging citizens to adopt plant-based diets. “As individuals,” the couple concluded, “we can make choices on how to better nourish our families, and as citizens, we can encourage local leaders to make choices that will allow us to enjoy our land and natural resources now and in the future.” The couple—who opened California’s first all-vegan MUSE school in 2015—have long advocated for a plant-based diet as the key to reducing environmental degradation. James Cameron is currently working on four sequels to Avatar and executively produced upcoming vegan documentary The Game Changers.