Our Angry Earth: A Ticking Ecological Bomb (1991) is a non-fiction book and polemic against the effects of humankind on the environment by the science fiction writers Isaac Asimov and Frederik Pohl. In his last non-fiction book, Asimov co-writes with his long-time friend science fiction author Frederik Pohl, and deals with elements of the environmental crisis such as overpopulation, oil dependence, war, global warming and the destruction of the ozone layer.

It suggests monumental disasters are threatening to destroy humankind and argues that "it is too late to save our planet from harm". The book has four sections: "The Background", "The Problems", "The Technocures" and "The Way to Go".