Data generated by travel modes can inform planners and regulators in improving the transportation system, but private mobility companies often restrict their access for concerns about privacy and competition.
Copenhagen may have already met its bicycling goal of 50 percent of modal share for commuting, but it needs to improve the share for all trips. With less funding available, the city is pursuing low cost strategies, such as auto parking removal.
With world population to grow by about 2 billion by 2050, and with more people eating higher on the food chain as nations develop economically, can world agriculture reduce its carbon footprint? A new World Resources Institute report shows how.
Coal plants will retire faster than analysts had figured under the Clean Power Plan, which the Trump administration is repealing, yet the Department of Energy proposes to make building new coal plants a centerpiece of its energy policy.