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The Tyee - Will Alberta's Oilsands Become 'Stranded Assets'? - 0 views
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Companies that own as-yet-unextracted fossil-fuel reserves could be left with stranded assets if the regulatory atmosphere changes, experts say. Expensive fossil-fuel sources, such as Alberta's oil sands, could be among the first to become uneconomic to extract. "I don't see this discussion going away. If anything, it's gaining momentum," says Ceres analyst Ryan Salmon.
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The Wild Alaskan Lands at Stake If the Pebble Mine Moves Ahead by : Yale Environment 360 - 0 views
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The proposed Pebble Mine in southwestern Alaska is a project of almost unfathomable scale. The Pebble Limited Partnership intends to excavate a thick layer of ore - nearly a mile deep in places - containing an estimated 81 billion pounds of copper, 5.6 billion pounds of molybdenum, and 107 million ounces of gold. The mine would cover 28 square miles and require the construction of the world's largest earthen dam - 700 feet high and several miles long - to hold back a 10-square-mile containment pond filled with up to 2.5 billion tons of sulfide-laden mine waste. All this would be built not only in an active seismic region, but also in one of the most unspoiled and breathtaking places on the planet - the headwaters of Bristol Bay, home to the world's most productive salmon fishery. Composed of tundra plain, mountain ranges, hundreds of rivers, and thousands of lakes, the greater Bristol Bay region encompasses five national parks and wildlife refuges, and one of the largest state parks in the U.S.
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Bringing Back the Night: The Fight Against Light Pollution by Paul Bogard: Yale Environ... - 0 views
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designed to eventually cut carbon dioxide emissions by 250,000 tons per year, save the equivalent of the annual energy consumption of 750,000 households, and slash the country’s overall energy bill by 200 million Euros ($266 million).
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lighting in many parts of the world is endangering our health and the health of the ecosystems on which we The good news is that light pollution is readily within our grasp to control.rely
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ecological light pollution, warning that disrupting these natural patterns of light and dark, and thus the structures and functions of ecosystems, is having profound impacts
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Connecticut and California — have enacted regulations to reduce light pollution, but most nations and cities still do little to dial down the excessive use of light
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We have levels of light hundreds and thousands of time higher than the natural level during the night
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Every flip of a light switch contributes to altering ancient patterns of mating, migration, feeding, and pollination, with no time for species to adapt
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“artificial lighting of the nesting beaches is the biggest threat to survival of hatchlings and a major factor in declining leatherback turtle populations.”
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between 100 million and 1 billion, we don’t really know — killed each year by collision with human-made structures
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our outdoor lights are irresistible flames, killing countless moths and other insects, with ripple effects throughout the food chain
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artificial light disrupts patterns of travel and feeding since many bat species avoid illuminated areas.
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studies on light pollution, ranging from research into the socio-political challenges of cutting light pollution in the Berlin metropolitan area to the effects of light pollution on nocturnal mammals
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consequences of excessive exposure to light at night include an increased risk for obesity, diabetes, and cardiovascular disease
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LEDs could “exacerbate known and possible unknown effects of light pollution on human health (and the) environment” by more than five times.
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simple act of shielding our lights — installing or retrofitting lamp fixtures that direct light downward to its intended target — represents our best chance to control light pollution
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For example, ever-brighter lights can actually diminish security by casting glare that impedes our vision and creates shadows where criminals can hide.
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As evidence mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet
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mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet.
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