Ecoanxiety

anxiety caused by a dread of environmental perils, especially climate change, and a feeling of helplessness over the potential consequences for those living now and even more so for those of later generations:

Reports from last week’s global summit have only worsened his ecoanxiety, which has already taken a toll on his physical and mental well-being.

Sanskrit equivalent

पर्यावरणीयचिन्ता