Animal agriculture is the leading cause of species extinction, ocean dead zones, water pollution, habitat destruction, deforestation & human-wildlife conflict, and is one of the leading causes of our climate emergency. And it's totally unnecessary. Shifting to plant-based diets drastically reduces our individual and collective negative environmental impact & helps mitigate climate change.
https://www.theguardian.com/environment/2018/may/31/avoiding-meat-and-dairy-is-single-biggest-way-to-reduce-your-impact-on-earth
(note: the media constantly conflates 'plant-based diets' with 'veganism' - they are not the same thing at all.)
Also: Our planet is not dying. Its ability to support life as we know it is being compromised.