Environmental science is an increasingly important global subject as it seeks to understand, protect, and sustain the environment. As a global subject, it looks at the interactions between the environment and human activities, and focuses on mitigating the damages caused by human activity. It considers the impact of climate change, pollution, and other environmental threats on ecosystems and the planet as a whole. By understanding the environment and its effects, environmental science can inform policy decisions that help protect the planet and its inhabitants. Environmental science is an essential tool in addressing the global environmental crisis, and its importance is only growing.