Scientists are working to find an alternative way of producing building materials as steel and concrete make up 10% of the world's carbon emissions. A group of researchers in the UK is studying the use of artificial bone: a mixture of animal collagen and eggshells.

The lab at the University of Cambridge is making small batches of the artificial bone and is now in the process of scaling it up for production use. However, the biggest setback is the use of animal collagen. It isn't exactly eco-friendly - or even sustainable - so the researchers are hoping to perfect the mixture with an artificial collagen to bind with the mineral of the eggshell.

The researchers also recognize getting the building industry to use new materials is like reinventing the wheel and it could be a few decades before the industry is ready to use something like artificial bone to create the next apartment community.

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