Consider this, if you would: a network of far-flung, powerful, high-tech civilizations closely tied by trade and diplomatic embassies; an accelerating threat of climate change and its pressure on food ...

Add Yahoo as a preferred source to see more of our stories on Google. Aghazadeh Mansion, a national historic site in Iran, was built with elaborate wind towers and other natural cooling techniques.

A delegation of officials and experts visits the Baiheliang Underwater Museum in Southwest China's Chongqing. Photo: ...

Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

Fans of the incredibly popular series of computer games called Civilization will recall the strange acts of diplomacy in the early iterations of the game. For instance, whenever a rival civilization ...

Modern buildings tend to take electricity and air conditioning for granted. They often have glass facades and windows that can't be opened. And when the power goes out for days in the middle of a heat ...