Cement is a big carbon emitter and quality is costly: a civil engineer explains

By Elsabe Kearsley, Professor in Civil Engineering, University of Pretoria

Every year the world uses 4 billion tonnes of cement to make the concrete that goes into buildings and other infrastructure. It leaves a huge carbon footprint, and comes with other costs too.

Civil engineering professor Elsabe Kearsley, who researches cement and concrete, tells us more about this basic ingredient…

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~	Seychelles: floating baby corals can help save damaged reefs – new study

~	Snakebites can destroy skin, muscle, and even bone – exciting progress on drugs to treat them

~	Small businesses can help South Africa fight unemployment if they get proper support – study

~	The Details: could a ‘quiet COVID book’ win the 2024 International Booker prize?

~	LGBTQ+ teachers don’t receive the training and support they need

~	Five ways to keep towns cool in a heatwave

~	Britain’s railways were never properly privatised – here’s how they could return to greater public control

~	Smoking fentanyl can cause irreversible brain damage, report shows

~	How Neanderthal language differed from modern human – they probably didn’t use metaphors

~	US election: why Latino and Hispanic voters are shifting to Trump after a long history of supporting the Democrats