 Scientific findings include the recognition of a 1965 Carbon-14 peak preserved in "the Loneliest Tree in the World" and shrubs growing on Campbell Island, New Zealand, that offer a possible marker for the proposed Anthropocene Epoch in the geological timescale.On the return home, their ice-strengthened vessel became trapped by a substantial breakout of sea ice.His book on the expedition's discoveries and the team's experiences trapped by sea ice were published in "Iced In