Qatar's low-carbon city models a greener future

DOHA, Qatar - During Doha's sweltering summers, when temperatures can hit 45 C and steamy humidity makes the air feel even hotter, museum manager Fahad al-Turky tends to drive a lot and stay mainly indoors.

But staying cool is getting easier in Msheireb Downtown Doha - a planned district still under construction in the capital where he works.

Developers of the 30-hectare regeneration zone, which aims to become "one of the largest sustainable cities in the world", are outfitting it with state-of-the-art green features, from rainwater harvesting to shady overhangs that make walking outside cooler.