A revised edition of Peter Singer's powerful collection, featuring 37 new essays. A fully updated and expanded edition of Peter Singer's powerful collection, including 37 new essays. Free speech and fake news, stopping Putin, pandemic ethics, climate change, extreme poverty, abortion, euthanasia, sports doping, the sale of kidneys, happiness, climbing Mt Everest, the parenting style of elephants, our relationship with kangaroos and colonising space. One of the world's most influential philosophers brings clarity, focus and brilliant analysis to a wide range of current real-world ethical matters. These provocative short essays will challenge-and possibly change-the way you think.