Energy & Green Tech

Biofuel from a container

More than four billion tons of crude oil are produced every year, and electricity from wind, solar and hydropower plants cannot entirely supplant fossil sources of energy. At best, renewables could cover the energy needed ...

Engineering

Q&A: Making Earth-friendly electronics

The very components that make electronics fast and easy to use also make their disposal an environmental nightmare. Components of smartphones, computers and even kitchen appliances contain heavy metals and other compounds ...

Robotics

Mining garbage and the circular economy

Over the last century, we have mined more and more raw materials, and manufactured products from those materials. Increased prices for mined raw materials and improved recycling technology have enabled some industries to ...

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