Melillo et al Soil Warming Experiment at Harvard Forest in Massachusetts (image) Marine Biological Laboratory Share Print E-Mail Caption Heated and control plots in a long-term soil warming study at Harvard Forest, Petersham, Mass. Jerry Melillo of the Marine Biological Laboratory, Woods Hole, Mass., and colleagues began the study in 1991. Credit Audrey Barker-Plotkin Usage Restrictions Please use with proper credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.