Air pollution falls after London vehicle curbs: Mayor

London's Mayor Sadiq Khan on Thursday claimed success for his expanded pollution toll zone for motor vehicles, pointing to a drop in levels of a harmful air pollutant since its controversial introduction.

Creating carbon negative materials with ancient microbes

Methane, a potent greenhouse gas, is naturally produced in many crucial industries such as agriculture and wastewater treatment. What if we could grab that gas before it goes into the atmosphere, and make something useful ...

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