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Half-Earth proposes an achievable plan to save our imperiled biosphere: devote half the surface of the Earth to nature. In order to stave off the mass extinction of species, including our own, we must move swiftly to preserve the biodiversity of our planet, says Edward O. Wilson in his most impassioned book to date. Half-Earth argues that the situation facing us is too large to be solved piecemeal and proposes a solution commensurate with the magnitude of the problem: dedicate fully half the surface of the Earth to nature. If we are to undertake such an ambitious endeavor, we first must understand just what the biosphere is, why it's essential to our survival, and the manifold threats now facing it. In doing so, Wilson describes how our species, in only a mere blink of geological time, became the architects and rulers of this epoch and outlines the consequences of this that will affect all of life, both ours and the natural world, far into the future. Half-Earth provides an enormously moving and naturalistic portrait of just what is being lost when we clip "twigs and eventually whole braches of life's family tree." In elegiac prose, Wilson documents the many ongoing extinctions that are imminent, paying tribute to creatures great and small, not the least of them the two Sumatran rhinos whom he encounters in captivity. Uniquely, Half-Earth considers not only the large animals and star species of plants but also the millions of invertebrate animals and microorganisms that, despite being overlooked, form the foundations of Earth's ecosystems. In stinging language, he avers that the biosphere does not belong to us and addresses many fallacious notions such as the idea that ongoing extinctions can be balanced out by the introduction of alien species into new ecosystems or that extinct species might be brought back through cloning. This includes a critique of the "anthropocenists," a fashionable collection of revisionist environmentalists who believe that the human species alone can be saved through engineering and technology. Despite the Earth's parlous condition, Wilson is no doomsayer, resigned to fatalism. Defying prevailing conventional wisdom, he suggests that we still have time to put aside half the Earth and identifies actual spots where Earth's biodiversity can still be reclaimed. Suffused with a profound Darwinian understanding of our planet's fragility, Half-Earth reverberates with an urgency like few other books, but it offers an attainable goal that we can strive for on behalf of all life. - Publisher.
Series
3 primary booksThe Anthropocene Epoch is a 3-book series with 3 primary works first released in 2012 with contributions by Edward O. Wilson.
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Wilson is a scientist and a long-time ardent proponent of saving our planet. He has deep concerns for our biosphere and advocates setting aside half the earth for the natural world. Wilson lays down solid evidence for his worries, and I came away from the book nodding my head in agreement.
My takeaways from Half-Earth:
Many scientists believe man has had such a profound impact on the planet that we should acknowledge the end of the Holocene Epoch and replace it with the Anthropocene, the Epoch of Man.
Apocalyptic extinctions are rare in the history of life, occurring only at about hundred-million year intervals. The planet usually required ten million years to recover from each. Our current peak of destruction initiated by humanity is often called the Sixth Extinction.
A census of biodiversity is currently in the process of being taken. It is believed that the total will be much higher than the two million species so far discovered.
Nothing causes the destruction of a biosphere as invasive species. It is generally believed that before the coming of humanity about two hundred thousand years ago, the rate of origin of new species per extinction of exiting species was about one species per million species per year. But, due to human activity, it is believed that currently the rate of extension overall is between a hundred and a thousand times higher than it originally was. The rate of extinction is rising in most parts of the world, with the preeminent sites of biodiversity loss being the tropical forests and coral reefs. If ninety percent of a forest is cut, about half of the species will soon disappear. Hawaii has been universally acknowledged as the extinction capital of the world.
Scientists use the acronym HIPPO for a quick list of our most ruinous activities: Habitat destruction, invasive species, pollution, population growth, and overhunting.
Most experts agree that humanity has raised the concentration of greenhouse gasses, especially carbon dioxide and methane, to a dangerous level. Predictions for the future are generally agreed upon: historic heat records will become routine; severe storms and weather anomalies will be normal; the melting of the ice shields will accelerate; the sea levels will rise exponentially.
There are those who are considered Anthropocene optimists, who feel a human-centered world is a good thing and a desirable outcome.
A lot to think about.