“I honestly don't know, but if America continues to refuse to reduce its greenhouse gas emissions, I see a bleak future not only for American society, but for the world as a whole. This is a global problem that is not going away, and the United States is an obstacle to solving it.”

Australian philosopher and bioethicist, Singer is best known for his utilitarian approach to ethics and his influential work on animal rights and effective altruism. His writings challenge conventional moral frameworks, advocating for compassionate decision-making across human and nonhuman animals.