Rescuers make the signal for silence during the search for survivors in a flattened building in Mexico City on September 21st, 2017, two days after a strong quake hit central Mexico, killing at least 240 people.
The brutal violence the Islamic State has used to control its territory is as much as part of its establishment of a state in Syria and Iraq as are the services it provides.
The cheapest solar technology is just situating your home or office in the right direction when it's built. You don't have to be Socrates to understand the concept — but it might help.