Big data study of global biodiversity shows ineffective national governance is a better indicator of species decline than any other measure of 'anthropogenic impact.' Even protected conservation areas make little difference in countries that struggle with socio-political stability.
This is bad news because governments are supposed to be trying to protect the environment which includes animals, birds.
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Research finds dramatic increases in snowfall since the beginning of the Industrial Age and explains global climate connections linking northern mountains with tropical oceans. Snowfall on a major summit in North America's highest mountain range has more than doubled since the beginning of the Industrial Age, according to a study from Dartmouth College, the University of Maine, and the University of New Hampshire.The research not only finds a dramatic increase in snowfall, it further explains connections in the global climate system by attributing the record accumulation to warmer waters thousands of miles away in the tropical Pacific and Indian Oceans. According to the research, wintertime snowfall has increased 117 percent since the mid-19th century in southcentral Alaska in the United States. Summer snows also showed a significant increase of 49 percent in the short period ranging less than two hundred years.
This could be some good or bad news. Some 630,000 years ago, the supervolcano beneath Yellowstone National Park in Wyoming recorded its last catastrophic eruption, forming a caldera that nearly spans the park’s width and belching a thick layer of ash, or tephra, across North America. But rather than a single event, Yellowstone may have erupted twice in a span of 270 years, new evidence from mud cores discovered off the coast of Santa Barbara, California, indicates. The cores, presented here today at the annual meeting of the Geological Society of America, were captured at the farthest extent of the ash’s reach, recorded as wisps of tephra in finely sedimented, ancient mud uplifted near the ocean floor. Most evidence of the Yellowstone eruption (the park’s Grand Prismatic geyser is pictured) is found on land in thick layers of compacted, weathered rock, which could have easily hidden the dual eruption, the researchers say. Both tephra layers also coincide with a stark temperature decline of 3°C, according to the core’s records of oxygen isotopes and fossilized plankton, with each episode lasting 100 years or more. If confirmed, the research could indicate that Yellowstone can recharge its eruptions much more quickly than typically thought—and that traditional views of volcanic winter, the period of cooling caused by a volcano’s reflective droplets and ash, fail to explain how a century of cooling could follow the eruptions.
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Ian VazquezI love to play sports |