Scientists say they can make zero-emission cement

Here's an even better one: Mycelium blocks. Amazingly strong blocks grown from fungi. Not a joke: https://www.certifiedenergy.com.au/emerging-materials/emerging-materials-mycelium-brick

GBR48 

or you can save the planet. Pick one.

"Save the planet" with another fancy project limited to countries who can afford it? Good grief. The planet does not need this salvation either. Maybe humanity does, but that that is another issue. It has plenty of ways of doing itself in.

In a world first, engineers from Britain's University of Cambridge have shown that cement can be recycled without the same steep cost to the environment as making it from scratch.

Another bondoogle. Recycling is by definition limited to amount of buildings demolished. And how much energy is saved by transporting and reprocessing old cement is not clear.

Plus, this is not a "world first". The Swedish company Cemvision has been offering this for a while.

Cambridge Electric Cement

GBR48Today  08:27 am JST

Quote: Patent pending.

If you want the Global South/third world to do this, it needs to be free to use. And no complaints if China just copy it, because we need them to. Ditto with other green innovations. If they are not free to do, people will not switch to them. You can make a few quid from licensing, or you can save the planet. Pick one.

I think you can have both. Rich developed countries can pay for the license, which supports further research, and rewards effort, while they can also give a free license to poor countries. Personally china doesn’t copy, they steal intellectual property, even when they can pay. So it’s not impossible to hold both ideas at the same time. The US, Canada,Germany Poland France Spain, etc could pay while undeveloped countries can get a free license.

Quote: Patent pending.

If you want the Global South/third world to do this, it needs to be free to use. And no complaints if China just copy it, because we need them to. Ditto with other green innovations. If they are not free to do, people will not switch to them. You can make a few quid from licensing, or you can save the planet. Pick one.

"Once the electricity has no emissions, then our process would have no emissions," Allwood said.

Hmmm.