Cairney, J. M.; Gault, B.; Larson, D. J.: Recognizing 60 years of achievements in field emission and atomic scale microscopy: Reflections on the International Field Emission Society. Materials Today 19 (4), pp. 182 - 183 (2016)
If manganese nodules can be mined in an environmentally friendly way, the critical metals needed for the energy transition could be produced with low CO2 emissions