Letter from Thomas Gold to Dr Melvin Calvin, Director, Laboratory of Chemical Biodynamics, University of California, Berkeley, California Encloses the solution to the atmospheric CO2 build-up problem. States the multiple signature letter has only now reached the last leg of the journey. Will send him the final copy as soon as he has one. Discusses what the microbiologists think of Gold's notions of creating biomass in the ground by methane utilizing bacteria above any methane seep. 25 June 1979