Urban jungle: wooden high-rises change city skylines as builders ditch concrete

Mass timber projects in Portland and New York City offer eco-friendly dwellings, but can 'plywood on steroids' actually catch on in the industry?

The concrete jungle has a rival: forests. Two urban building projects, in New York City and Portland, Oregon, will be changing their city's skylines with an environmentally sustainable, cost-competitive building material. The key ingredient? Wood.

Related: Wood replaces concrete in eco-friendly building projects - in pictures