New, smart building materials can change some of their properties in response to external stimuli, such as temperature. And they are being incorporated into materials such as bricks and roof cladding to make homes more resistant to heat fluctuations. Find out how they work here.

Native animals can make excellent neighbours. Blue banded bees pollinate our vegetable gardens. Microbats eat up to 1,200 mosquitoes a night and powerful owls keep rodents at bay. But could we go one step further, and change our homes to invite native animals in as housemates?