One chapter title made him pause:
: Natural resources, ecosystems, biodiversity, pollution control, waste management, and social issues like HIV/AIDS and sustainable development. One chapter title made him pause: : Natural
Textbook of Environmental Studies (2nd Edition) S.S. Katewa , published by Cengage Learning India One chapter title made him pause: : Natural
Potential limitations
Quickly finding specific keywords like "biomagnification" or "Kyoto Protocol." One chapter title made him pause: : Natural