By Ryan Johnson Authorities declared an environmental emergency on Tuesday for metropolitan Mexico City, one of the world’s most populous megalopolises, as smoke from nearby wildfires pushed pollution to levels deemed potentially harmful to human health. Environmental authorities advised residents to avoid outdoor activities and exercise and remain indoors with windows and doors shut. It […]

The global fleet of electric buses is already helping cities avoiding the purchase of 279,000 barrels of oil per day, according to Bloomberg New Energy Finance (BNEF). Diesel buses consume an extraordinary amount of fuel compared to a passenger vehicle. Bloomberg noted that “For every 1,000 battery-powered buses on the road, about 500 barrels a day of […]