Contact: Beth Potier
University of New Hampshire
Caption: This shows research sites at the Harvard Forest Long-Term Ecological Research site in Petersham, Mass., where Frey and Melillo have been warming two sites with underground cables. The photo was taken during a January thaw on a 50-degree day; the heated plots, which had been snow-covered, melted before the unheated ones.
Credit: Alix Contosa
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Related news release: Warmer soils release additional CO2 into atmosphere; Effect stabilizes over longer term