The Once and Future World: Nature As It Was, As It Is, As It Could Be

The Once and Future World examines the dramatic changes in Earth's natural environments over recent centuries. MacKinnon traces how human activity has transformed landscapes, ecosystems, and wildlife populations across the globe. Through research and firsthand observations, MacKinnon explores historical accounts of nature's past abundance and diversity. He investigates extinct species, vanished habitats, and the cascading effects of ecological loss in different regions. The book outlines possibilities for "rewilding" and ecological restoration in both urban and rural settings. MacKinnon presents case studies of successful conservation efforts while considering what it means to rebuild natural systems in the modern world. This work challenges readers to reconsider their understanding of what constitutes "normal" nature and raises questions about humanity's relationship with the natural world. The narrative moves between past, present, and potential futures to examine how ecological awareness shapes our actions and choices.

Readers found the book thought-provoking but sometimes dense in its scientific detail. The mix of personal reflection, historical examples, and environmental research resonated with many readers. What readers liked: - Clear explanations of historical ecological changes - Balance of hope and realism about environmental restoration - Engaging writing style that blends science and storytelling - Concrete examples of successful rewilding projects What readers disliked: - Technical passages that slow the pace - Focus on Canadian examples may not connect with all readers - Some found the solutions proposed impractical - Repetitive points in certain chapters Ratings: Goodreads: 4.1/5 (1,200+ ratings) Amazon: 4.4/5 (50+ ratings) Notable reader comments: "Makes you see familiar landscapes with new eyes" - Goodreads reviewer "Important message but gets bogged down in academic detail" - Amazon reviewer "Changed how I think about 'pristine' nature" - LibraryThing reviewer

The World Without Us by Alan Weisman A thought experiment traces how nature would reclaim the earth if humans vanished, revealing the impact of human presence on natural systems.

The Sixth Extinction by Elizabeth Kolbert This investigation chronicles past mass extinctions and documents the current human-caused extinction crisis through specific species cases.

Rewilding North America by Dave Foreman The text presents a vision for restoring large wilderness areas and reintroducing extinct species to create functioning ecosystems across the continent.

Changes in the Land by William Cronon This ecological history examines the transformation of New England's landscape from pre-colonial to colonial times, showing how different cultures shaped the natural environment.

The End of Nature by Bill McKibben The work describes how human activity has fundamentally altered the natural world and explores what this means for the future of life on Earth.

🌿 Prior to writing this book, MacKinnon lived alone in the wilderness for several months to experience nature in its purest form and gain firsthand perspective. 🦋 The term "shifting baseline syndrome," central to the book's premise, was coined in 1995 by fisheries scientist Daniel Pauly to describe how each generation accepts a diminished natural environment as normal. 🌎 MacKinnon reveals that just 500 years ago, many coastal waters were so full of fish that sailors could catch them with bare hands, and whales were so numerous they posed hazards to navigation. 🦬 In North America, historical records show that bison herds were once so vast that they could take days to pass a single point, with estimates of 30-60 million animals roaming the plains. 🌳 The book introduces the concept of "re-wilding" - not just preserving what's left of nature but actively working to restore ecosystems to their former abundance and diversity, which has inspired several major conservation projects worldwide.