We must completely change the way we build homes to stay below 2°C

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Construction generates between 10 and 20 per cent of the world's greenhouse gas emissions, but cities can slash their climate impact by designing buildings in a more efficient way Cities must reduce greenhouse gas emissions from the construction of buildings and infrastructure by more than 90 per cent in the next two to four decades if the world is to avoid warming of more than 2°C. That means radical changes are needed in the design of buildings, or what they are built from, or both. “Canada wants to triple its rate of housing construction. The US has a housing deficit, Australia has a housing deficit, [and so does] basically every country you go to right now,” says Shoshanna Saxe at the University of Toronto, Canada. “How do we build so much more while also demanding that we pollute so much less?” Yet this is achievable, Saxe thinks.
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