Shield volcano Mars are very similar to the shield volcanoes on Earth. Both have gently sloping flanks, collapse craters along their central structure, and are built of highly fluid lavas. Volcanic features on Mars were observed long before they were first studied in detail during the 1976–1979 Viking mission. The principal difference between the volcanoes of Mars and those on Earth is in terms of size; Martian volcanoes range in size up to high and in diameter, far larger than the high, wide Hawaiian shields. The highest of these, Olympus Mons, is the tallest known mountain on any planet in the solar
Our Plundered Planet Our Plundered Planet Our Plundered Planet is a book published in 1948 that was written by Fairfield Osborn about environmental destruction by humankind. With a focus on soil, the book is a critique of humankind's poor stewardship of Earth. It typifies the earliest apocalyptic environmental literature, in which human beings are seen as destroyers of the natural world. "Our Plundered Planet", along with William Vogt’s "Road to Survival", also published in 1948, launched a Malthusian revival in the post War era, and would inspire Paul R. Ehrlich, author of "The Population Bomb" among many others. In writing this book, Osborn