Iron-fortified lumber could be a greener alternative to steel beams

Although lumber does show promise as a renewable alternative to structural materials such as steel, it still tends to be weaker than those substances. Scientists have now set about addressing that shortcoming, by strengthening wood with added iron.

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New plastic dissolves in the ocean overnight, leaving no microplastics

Scientists at RIKEN in Japan have developed a new type of plastic that’s just as stable in everyday use as regular plastic, but dissolves quickly in saltwater, leaving behind only safe compounds.

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“Self-densified” wood could give metal a run for its money

While sustainably-grown wood can be an eco-friendly building material, its relatively low tensile strength limits its potential applications. That could soon change, however, thanks to a new self-densifying technique for creating super-strong wood.

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Cement sand substitute made directly from seawater, electricity and CO2

This strange white paste might not look like much, but it could not only solve the sand shortage, but make the cement manufacturing process absorb carbon dioxide instead of emitting it. Scientists grew this stuff out of seawater, electricity and CO2.

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New battery-free electricity source: Tiny plastic beads

Harnessing a principle known as triboelectrification, researchers have worked out the optimal way to generate an electrical charge in a relatively simple way. The breakthrough could provide a battery-free way to power wearables and other devices.

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21st-century chainmail uses molecular instead of metallic links

In what they're calling the "highest density of mechanical bonds ever achieved," researchers created a super-strong flexible material that works very much like chainmail. The breakthrough has already demonstrated its ability to improve body armor.

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Window coating reflects heat to cool buildings by 40 degrees

Cranking up the air conditioner keeps buildings cool, but it guzzles energy. Passive materials can regulate temperatures more efficiently, and now scientists have developed a new coating that keeps glass much cooler, while still being transparent.

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‘ZeroCAL’ cement production process takes CO2 out of the equation

Researchers at UCLA have successfully devised a way to produce cement with 98% less CO2 emissions than traditional methods. The team achieved this by decomposing limestone to access calcium oxide (aka lime) without releasing carbon dioxide.

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Biggest diamond in a century uncovered using X-rays

The second largest diamond in the world has been discovered in Botswana. Canadian mining company Lucara Diamond used an advanced X-ray scanner to find a 2,492-carat diamond from its Karowe Diamond Mine. That's a whopping 17.58 oz (498.4 g).

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