ApocaDocuments (7) matching "climate impacts" from this week
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Sat, Feb 19, 2011
from Live Science:
New Idea to Reduce Global Warming: Everyone Eat Insects
There is a rational, even persuasive, argument for voluntarily eating insects: Bugs are high in protein, require less space to grow and offer a more environmentally friendly alternative to the vertebrates we Westerners prefer, advocates of the bug fare say.
However, this topic is not a hotbed of research, so while some data exist -- in particular on the protein content of insects -- there are some assumptions built into the latter part of this argument.
"The suggestion that insects would be more efficient has been around for quite some time," said Dennis Oonincx, an entomologist at Wageningen University in the Netherlands. He and other researchers decided to test it, by comparing the greenhouse gas emissions from five species of insects with those of cattle and pigs. The results, Oonincx said, "really are quite hopeful." ...
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Hopeful maybe for everyone but the poor bugs!
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Sat, Feb 19, 2011
from ScienceDaily:
Frequent, Severe Fires Turn Alaskan Forests Into a Carbon Production Line
Alaskan forests used to be important players in Mother Nature's game plan for regulating carbon dioxide levels in the air. It's elementary earth science: Trees take up carbon dioxide and give off oxygen.
But now, American and Canadian researchers report that climate change is causing wildfires to burn larger swaths of Alaskan trees and to char the groundcover more severely, turning the black spruce forests of Alaska from repositories of carbon to generators of it. And the more carbon dioxide they release, the greater impact that may have in turn on future climate change.
"Since the proliferation of black spruce, Alaskan soils have acted as huge carbon sinks," says Evan Kane, a research assistant professor in Michigan Technological University's School of Forest Resources and Environmental Science. "But with more frequent and more extensive burning in recent decades, these forests now lose more carbon in any fire event than they have historically been able to take up between fires." ...
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All right! A new justification for clear-cutting!
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Thu, Feb 17, 2011
from Associated Press:
Scientists connect global warming to extreme rain
Extreme rainstorms and snowfalls have grown substantially stronger, two studies suggest, with scientists for the first time finding the telltale fingerprints of man-made global warming on downpours that often cause deadly flooding.
Two studies in Wednesday's issue of the journal Nature link heavy rains to increases in greenhouse gases more than ever before... For years scientists, relying on basic physics and climate knowledge, have said global warming would likely cause extremes in temperatures and rainfall. But this is the first time researchers have been able to point to a demonstrable cause-and-effect by using the rigorous and scientifically accepted method of looking for the "fingerprints" of human-caused climate change. ...
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Let the revolution begin!
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Wed, Feb 16, 2011
from Mongabay News:
Cambodia approves titanium mine in world's 'most threatened forest'
The Cambodian government has approved a mine that environmentalists and locals fear will harm wildlife, pollute rivers, and put an end to a burgeoning ecotourism in one of the last pristine areas of what Conservation International (CI) recently dubbed 'the world's most threatened forest'. Prime Minister, Hun Sen, approved the mine concession to the United Khmer Group, granting them 20,400 hectares for strip mining in Cambodia's Cardamom Mountains. The biodiverse, relatively intact forests of the Cardamom Mountains are a part of the Indo-Burma forest hotspot of Southeast Asia, which CI put at the top of their list of the world's most threatened forests. With only 5 percent of habitat remaining, the forest was found to be more imperiled than the Amazon, the Congo, and even the forests of Indonesia and Malaysia. ...
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Like I always say: If you're heading for the cliff might as well accelerate!
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Wed, Feb 16, 2011
from Politico:
Greens sour on natural gas
Whatever happened to the romance between the environmental lobby and natural gas?
After years of basking in a green glow as the cleanest fossil fuel and a favorite short-term choice to replace cheap-but-dirty coal, gas now finds itself under attack from environmentalists, filmmakers and congressional Democrats -- and even from some scientists who raise doubts about whether its total emissions are as climate-friendly as commonly believed. Case in point: the Sierra Club, whose former executive director, Carl Pope, has spoken warmly in recent years about gas as an alternative to coal in power plants. Now, the group is considering calling for natural gas to be phased out by 2050 -- about 20 years after it wants coal eliminated.
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No coal... no natural gas... How will we fuel our lifestyle, with farts?
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Wed, Feb 16, 2011
from Huffington Post:
UN's Figueres Warns Of 'Climate Chaos,' Urges Militaries To Invest In Prevention
Global warming is a looming threat to stability and national security around the world, and militaries should spend some of their ever-expanding budgets on reducing carbon emissions to avoid "climate chaos," the U.N.'s top climate official said Tuesday.
Christiana Figueres, head of the U.N. climate secretariat, warned of the destabilizing effects created by growing water stress, declining crop yields and damage from extreme storms in some of the world's poorest countries, which could set off mass international migration and regional conflicts.
Figueres said the world's military budgets grew by 50 percent in the first nine years of this century. Rather than continue that growth in weaponry, she said, the generals should invest in preventative budgets to "avoid the climate chaos that would demand a defense response that makes even today's spending burden look light." ...
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It's as if she thinks a collapsing economy in a hypermilitarized security state is a bad thing.
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Mon, Feb 14, 2011
from The Columbus Dispatch:
Ohio EPA tries to limit brine dumps in rivers
Fast-growing interest in natural-gas drilling could create a flood of cash for Ohio cities eager to treat wastewater used to coax the gas from deep inside Utica and Marcellus shale.
But what's good for the cities might be bad for the state. The process could pollute Ohio streams and rivers, environmental officials say.... With the new drilling technique, called hydraulic fracturing, or "fracking," drillers shoot millions of gallons of water laced with industrial chemicals down the wells to break the shale and release the gas.
About 15 percent of the water shot down the well comes back up, tainted with salt and hazardous metals that can include barium, cadmium and chromium. After the initial surge of "flow back" water, wells continue to produce brine that contains even higher concentrations of salt, metals and minerals. ...
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Brine sounds like a goldmine.
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