The Interfaith Center for Sustainable Development organized the Jerusalem #LightForLima solar-lantern event. Photo by Gundula M. Tegtmeyer for the ICSD

Greener heating for hotels and hospitals

An Israeli hybrid water-heating system shaves thousands of dollars a year off heating costs at big facilities, and vastly improves efficiency. The Hydra system being installed at the Jerusalem Ramada. Heat pumps, more common in moderate climates than extreme ones, …