Vast energy sources are slumbering below big cities. Sustainable energies for heating in winter and cooling in summer may be extracted from heated groundwater aquifers.
It has been estimated that by 2050, as much as 80 percent of the earth’s population will reside in cities.
Researchers have discovered that two areas of the brain are directly affected by city living, leading to a greater risk of anxiety and mood disorders.
Tony Verrelli, CEO of a Toronto start-up known as Cleanfield, believes that the market potential for urban wind turbines is massive, and he's making some bold moves to prove it.
Researchers at Israel's Technion Institute have developed a second-gen military snake 'bot that could eventually participate in urban and subterranean operations conducted by the IDF.