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. The technology with the smallest share of economic impact - in relative terms - is found in the field of
renewable energies. Photovoltaic cells,
wind turbines and the like will account for between 0.2 and 0.3 trillion US dollars in 2025. Plans by India, China and other emerging nations to invest in green energies are contributing to the success of these technologies. After all, the new technologies can save up to 1,200 million tons of
CO2 per year. McKinsey therefore sees them clearly in first place in ecological terms.
