Could sprinkling sand save the Arctic's shrinking sea ice?

Arctic Dispatches, part 3: A pilot project at a lake in northern Alaska is one of a number aiming to slow climate change with geoengineering - but some worry about unintended consequences

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As a test location for a project that aims to ensure the livability of Earth, a frozen lake near the northern tip of Alaska could seem rather inauspicious.

While the North Meadow Lake near UtqiaAvik, formerly known as Barrow, may be relatively nondescript, it will be the staging ground this month for an ambitious attempt to safeguard the Arctic's rapidly diminishing sea ice and stave off the most punishing effects of global warming.