Resultados para "Caravan" en Ciencias biológicas

Roughgarden rejects both junk science based on spurious metaphors and junk religion based on spurious theology. In their place, she offers an inspiring accommodation between thoughtful science and compassionate religion.

In this brilliant portrait of the oceans' unlikely hero, H. Bruce Franklin shows how menhaden have shaped America's national-and natural-history, and why reckless overfishing now threatens their place in both. Since Native Americans began using menhaden as fertilizer, this amazing fish has greased the wheels of U.S. agriculture and industry.

Humanity can make short work of the oceans' creatures. In 1741, hungry explorers discovered herds of Steller's sea cow in the Bering Strait, and in less than thirty years, the amiable beast had been harpooned into extinction. It's a classic story, but a key fact is often omitted. Bering Island was the last redoubt of a species that had been decimated by hunting and habitat loss years before the explorers set sail.

Already technology enables parents to select some genetic traits for their children, and soon it will be possible to begin to shape ourselves as a species. Countering loud cries of alarm, bioethics expert Ronald Green explains why our fears about genetic engineering are overblown and how we can move forward responsibly to create a better future.

How serious are the threats to our environment? Here is one measure of the problem: if we continue to do exactly what we are doing, with no growth in the human population or the world economy, the world in the latter part of this century will be unfit to live in. Of course human activities are not holding at current levels—they are accelerating, dramatically—and so, too, is the pace of climate disruption, biotic impoverishment, and toxification.

Jailed as a scapegoat for Stalin's famines, Vavilov had traveled over five continents, collected hundreds of thousands of seeds in an effort to outline the ancient centers of agricultural diversity. Gary Paul Nabhan weaves together Vavilov's story with his own expeditions to Earth's richest agricultural landscapes and the cultures that tend them.

In humanity’s more than 100,000 year history, we have evolved from vulnerable creatures clawing sustenance from Earth to a sophisticated global society manipulating every inch of it. In short, we have become the dominant animal. Why, then, are we creating a world that threatens our own species? What can we do to change the current trajectory toward more climate change, increased famine, and epidemic disease?