But dark sky advocates say it doesn’t need to be this way. Even in urban areas, more carefully directed lighting that doesn’t shine up into space, and lights that are switched off when they’re not needed, could help save energy and bring back the glow of a naturally dark night sky.
Thousands of streams could make villages and towns energy independent, experts say. Source link
Available for 28 daysA small but mighty problem: what to do with the radioactive waste we have already made?...
The native species was driven to extinction by sailors in the 1800s. Now, 158 juvenile giant tortoises have been...
Thousands of streams could make villages and towns energy independent, experts say. Source link
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