The image of smog blanketing a traffic-choked urban highway has cemented the perception that cars are the primary source of carbon dioxide (CO2) emissions, the driving force behind climate change. In reality, gas-powered cars and vans account for only about 10% of global CO2 emissions, according to the International Energy Agency. On the other hand, according to Architecture 2023, the built environment is responsible for 42% of CO2 emissions—more than four times as much.
This is actually good news in terms of our ability to address climate change, as reducing emissions from buildings is both easier and more impactful than tackling emissions from automobiles.
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