3
" One way to make sense of the biodiversity crisis would simply be to accept it. The history of life has, after all, been punctuated by extinction events, both big and very, very big. The impact that brought an end to the Cretaceous wiped out something like seventy-five percent of all species on earth. No one wept for them, and, eventually, new species evolved to take their place. But for whatever reason—call it biophilia, call it care for God’s creation, call it heart-stopping fear—people are reluctant to be the asteroid. And so we’ve created another class of animals. These are creatures we’ve pushed to the edge and then yanked back. The term of art for such creatures is “conservation-reliant,” though they might also be called “Stockholm species” for their utter dependence on their persecutors. "
― Elizabeth Kolbert , Under a White Sky: The Nature of the Future
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" This has been a book about people trying to solve problems created by people trying to solve problems. In the course of reporting it, I spoke to engineers and genetic engineers, biologists and microbiologists, atmospheric scientists and atmospheric entrepreneurs. Without exception, they were enthusiastic about their work. But, as a rule, this enthusiasm was tempered by doubt. The electric fish barriers, the concrete crevasse, the fake cavern, the synthetic clouds- these were presented to me less in a spirit of techno-optimism than what might be called techno-fatalism. They weren't improvements on the originals; they were the best that anyone could come up with, given the circumstances...
It's in this context that interventions like assisted evolution and gene drives and digging millions of trenches to bury billions of trees have to be assessed. Geoengineering may be 'entirely crazy and quite disconcerting', but if it could slow the melting of the Greenland ice sheet, or take some of 'the pain and suffering away', or help prevent no-longer-fully-natural ecosystems from collapsing, doesn't it have to be considered? "
― Elizabeth Kolbert , Under a White Sky: The Nature of the Future
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" People have, by now, directly transformed more than half the ice-free land on earth- some twenty-seven million square miles- and indirectly half of what remains. We have dammed or diverted most of the world's major rivers. Our fertilizer plants and legume crops fix more nitrogen than all terrestrial ecosystems combined, and our planes, cars, and power stations emit about a hundred times more carbon dioxide than volcanoes do. We now routinely cause earthquakes. In terms of sheer biomass, the numbers are stark-staring: today people outweigh wild mammals by a ratio of more than eight to one. Add in the weight of our domesticated animals- mostly cows and pigs- and that ratio climbs to twenty-two to one... We have become the major driver of extinction and also, probably, of speciation. So pervasive is man's impact, it is said that we live in a new geological epoch- the Anthropocene. "
― Elizabeth Kolbert , Under a White Sky: The Nature of the Future
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" In one form or another, calcium carbonate turns up everywhere—in coral reefs, in the pores of basalt, in the ooze at the bottom of the ocean. It’s the main component of limestone, which is one of the world’s most common sedimentary rocks. “There are vast amounts of limestone dust blowing around in the troposphere, where we live,” Keutsch observed. “So that makes it attractive. “It has near-ideal optical properties,” he went on. “It dissolves in acid. So I can say with certainty that it will not have the same ozone-depleting impact that sulfuric acid has.” Mathematical modeling has confirmed the mineral’s advantages, Keutsch told me. But until someone actually throws calcium carbonate into the stratosphere, it’s hard to know how much to trust the models. “There’s no other way around it,” he said. — "
― Elizabeth Kolbert , Under a White Sky: The Nature of the Future
