Bullet2012
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So if you have a way to melt metal and have some concrete available, you can now be green.
![hug :hug: :hug:](/forum/styles/smilies/hug.gif)
![www.bbc.co.uk](https://ichef.bbci.co.uk/news/1024/branded_news/ad90/live/b658ab70-181c-11ef-91fc-5d1a434f5e40.jpg)
Climate change: UK breakthrough could slash cement CO2 emissions
Scientists from Cambridge University find an ingenious way to decarbonise one of the world's most polluting materials.
www.bbc.co.uk