A vast amount of plastic waste has accumulated in the Arctic. It has been carried there by ocean currents from far off places for decades, and has nowhere else to go.
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–Antarctica is also collecting far more plastic than expected, mostly microplastics. These things are bound to find there way into the marine food chain.
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A disturbing event in West Antarctica last year has been documented. Mild air temperatures associated with El Nino caused widespread surface melting over shelves and glaciers lasting for up to two weeks. Highly unusual rainfall was also reported. The events adds to an overall picture of long-term instability for the ice in this region.
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Renewable power generation projections from the investment banking firm BNEF. The most amazing part of this story is how the firm’s analysts are predicting further price declines. “Despite years of plummeting prices for renewables, BNEF projects that over the next two decades, the cost of solar power will still drop another two-thirds, onshore wind costs will be cut nearly in half, and offshore wind costs will drop a stunning 71 percent.”
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Considerable progress has been made toward lowering the cost of super high efficiency solar cells. The goal for “concentrator photovoltaics” is above 50% efficiency, which is more than double that of today’s conventional silicon cells. From the University of Michigan comes a report of two new developments which can make this possible at reasonable costs for commercial usage.
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A closeup view of illegal logging and mining operations in Brazil’s Amazon forest. It is happening on a grand scale, such that the nation’s problem of deforestation is again out of control. Now there is an effort to make these same things legal (from Mongabay).