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Nitrogen

New London pollution tax comes into force

11 months, 25 days ago
LONDON: Drivers of the most polluting vehicles will face an extra daily charge for driving into central London on weekdays from Monday in a bid to improve air quality in one of Europe‚Äôs most polluted cities. London Mayor Sadiq Khan…

Mars has nitrogen, key to life: NASA

3 years, 6 months ago
WASHINGTON: NASA's Curiosity rover has found nitrogen on the surface of Mars, a significant discovery that adds to evidence the Red Planet could once have sustained life, the space agency said Tuesday.