The megacity of Lagos, Nigeria, has one of the fastest growing populations in the world. But its infrastructure can’t keep up. Roads flood. Public transport is scant. Officials hoped to fix that with ...

In an ideal world, Nassef Sawiris would have delivered Unai Emery a transfer war chest to give him the best chance of building a squad capable of returning to the Champions League. However, the ...

It's been a brutally hot summer throughout the U.S., and it's even worse in many urban pockets. Trees can help.

Cities are seeking low-cost ways to ease the heat island effect. Researchers found benefits and trade-offs in two popular ...