Despite huge investments in clean - energy technologies, such as wind and solar power, “the average unit of energy produced today is basically as dirty as it was 20 years ago, ” says Maria van der Hoeven, executive director of the International Energy Agency.
फिर भी ‘ आज इन तकनीकों से बननेवाली ऊर्जा औसतन उतनी ही दूषित है जितनी बीस साल पहले होती थी । ’ ( g14 - E 05)