Engineering

Five ways to cool cities as temperatures soar

As Australia heads into an El Niño summer, UNSW's Dr. Negin Nazarian, an expert in urban climate, explains five crucial strategies to keep cities—and people—cooler.

Engineering

Seven ways to recycle heat and reduce carbon emissions

Heating of space and water in buildings accounts for about 44% of all energy consumed globally according to the International Energy Agency. This heat is still overwhelmingly generated by burning fossil fuels, making it an ...

Energy & Green Tech

Here's how geothermal energy heats and cools a home

Some homeowners looking to switch out their heating and cooling systems are turning to home geothermal—also known as ground source—heat pumps. It's a technology that relies on a simple physical fact: Dig several feet ...

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