Heating Dirt Could Cause a Runaway Rise in Carbon Emissions

Tucked into the apple-growing hills of Western Massachusetts is the Harvard Forest, a 3,700-acre wooded preserve that hosts school kids on field trips, day-tripping hikers, and, for more than a quarter century, a highly unusual science experiment. For the past 26 years, strings of subterranean electrical wires have heated segments of the forest floor to …

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