Environmental science is an interdisciplinary field that studies the natural world and the impact of human activities on the environment. It encompasses various aspects of ecology, biology, chemistry, physics, and social sciences to understand the complex relationships between human societies and the natural environment.

Publishers typically update CSS books every 2-3 years. As of 2026, check the latest edition on Saeed Book Bank (Islamabad) or Liberty Books. The core science changes little, but the current affairs sections (treaties, national policies) need updates.