We have no assurance that alternative, non-polluting energy sources
can replace our current (much less our projected) energy use, or even large parts of it.
Still, more than four dozen scientists, economists, engineers and entrepreneurs interviewed by The New York Times said that unless the search for abundant non-polluting energy sources
and systems became far more aggressive, the world would probably face dangerous warming and international strife as nations with growing energy demands compete for increasingly inadequate resources.
Photovoltaic systems are non-polluting energy sources
. They generate electricity from the sun, even on cloudy days.
The photovoltaic systems are non-polluting energy sources
which generate electricity from the sun, even on cloudy days.
Increased concern about the impact of human activity on the global ecosystem points to the need for new broadly available, non-polluting energy sources
such as fusion.
Jointly with Greenpeace, ITDG produced a long-term action plan outlining the steps world leaders need to take to provide renewable, non-polluting energy sources
for the world's poor.
* if possible, incorporating the use of alternative non-polluting energy sources
, like solar, wind or hydro, when feasible
Now perhaps some of that knowledge can be applied in other countries, where growing concern over the environment has sparked interest in renewable, non-polluting energy sources