Cairo's black cloud
Cairo, Egypt · 30.05°, 31.24° · Air pollution
Rice-straw burning, traffic and desert dust produce an autumn 'black cloud' over the Nile Delta.
Greater Cairo is home to more than 20 million people. Every autumn since the late 1990s, farmers burning rice straw in the Delta have combined with vehicle and industrial emissions to form a thick dark haze. Programmes to collect and recycle straw, convert vehicles to natural gas and expand the metro aim to clear it.
In the game
Cairo's black cloud flares up as Toxic air. The fix is a gesture: tap when the ring hits the green zone. Done right, it becomes Air cleared 🌤️. Finish all three steps of its chain in one round for a combo, or take your time in Explore mode: a place you fully restore stays green on your map for good.
🧭 Fly there and restore it▶ Play a 60-second round