William H. McKibben

William H. McKibben is an American environmentalist, author, and journalist known for his work raising awareness about climate change and the environment. He helped popularize the concept of global warming and founded 350.org, a global movement to reduce carbon dioxide levels in the atmosphere. Through books, speeches, and activism, McKibben advocates for urgent action to combat environmental destruction, promote renewable energy, and protect natural ecosystems. His efforts have made him a prominent voice in the environmental movement, emphasizing both scientific understanding and policy change to ensure a sustainable future.