Climate change means "whole paradigm has to change" for skyscrapers

The attack on the World Trade Center 20 years ago had a significant impact on skyscraper design. Continuing our 9/11 anniversary series we look at how skyscrapers will change over the next two decades.
The coronavirus pandemic and climate change will be two of the biggest influences on skyscraper design over the next 20 years, according to experts.
"I think environment and health are two fundamental things, above security, that challenge us all in the industry of the paradigm of the skyscraper,"