One of the most ambitious efforts to transform city skylines around the globe is nearly invisible. That’s because the changes, aimed at drastically reducing energy consumption and carbon emissions in tall buildings, are happening in places most people never venture–in subterranean boiler rooms, behind radiators, under desks and inside the massive walls of office towers built decades ago.
The Obama Administration has approved fuel-economy regulations, beginning with 2012-model-year vehicles. The rules require automakers to improve fleetwide fuel economy and to reduce fleetwide greenhouse-gas emissions by approximately 5% every year up until the 2016 model year
For a device so many people use so frequently in the course of a day, surprisingly little is certain about the health effects of cell-phone use.