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"In the context of climate change mitigation, the forest sector is unique in that carbon moves both into and out of the system," says senior author Jonathan Thompson, a senior ecologist and research director at Harvard Forest, which is based in Petersham, Massachusetts.

She styled the tailored look with a headpiece featuring a crinoline base with a layer of tulle and merry widow veiling, adorned with a Petersham ribbon bow.

Mrs Hilger-Ellis, who was a fellow member of the Ham and Petersham Rifle and Pistol Club, said Mr Foote had "so many interests", including shooting, sailing, motor sport and mechanics.

The experiment is in early stages in the Harvard Forest — a 4,000-acre forest managed by Harvard University in Petersham, Massachusetts — and the findings have not been submitted for peer review yet.

The chef Skye Gyngell, who received one star, in 2011, for her British restaurant Petersham Nurseries Café, eventually stopped mentioning it in the restaurant’s promotional materials.