Biographies of warriors such as Alexander, Babur, Napoleon make for fascinating reading. Staring with modest resources, they expanded their jurisdictions across diverse lands and people, leaving permanent legacies. A common trait among them was lack of fear, and a passion and love for conflict. The memoirs of environmental activist Sunita Narain, aptly titled Conflicts of Interest: My Journey through India’s Green Movement, reads like the account of one such warrior. She ventured to wage battles against the mighty on diverse issues, including air pollution, use of pesticides and their impact on ground water, climate change and carbon emissions, tiger conservation and managing water and waste.