The top three environmental issues are: Climate Change: Driven by greenhouse gas emissions, climate change leads to rising global temperatures, extreme weather events, and disruptions to ecosystems. Biodiversity Loss: Habitat destruction, pollution, and climate change contribute to the rapid decline of species, threatening ecosystems and the services they provide. Pollution: Air, water, and soil pollution from industrial activities, plastic waste, and chemicals pose significant risks to human health and the environment, affecting ecosystems and wildlife.