Energy saving seen most effective in CO2 cutting

People argue over coal versus wind, versus solar versus nuclear, but the least cost source of new energy is greater efficiciency of use. This isn’t really a brand new finding. It has been known since the 1970s. It may seem new to decision-makers, however, who out of ignorance or intent, choose to focus only on generating more energy.

Energy saving seen most effective in CO2 cutting. Reuters.