Buildings can play a “transformative” role in fighting climate change in cities, according to the UN Environment Programme (UNEP).

Experts from around the world are currently meeting in Marrakech, Morocco, at the COP22 conference, which is looking at how to turn the goal of keeping global temperature rises to below 2 degrees Celsius into a reality.

It’s estimated that by 2050, two-thirds of the world’s population will be living in urban areas, so scientists and architects are now looking at how to promote energy efficient cities and buildings.

Jacqueline McGlade is UNEP’s Chief Scientist on cities and climate.

Jerome Bernard, who is in Marrakech, asked her how buildings can help cut the harmful gas emissions which lead to climate change.

Duration: 3'11"