Cement-based rammed earth "not much better than concrete"

Rammed earth is often celebrated as a low-carbon method of constructing buildings, but some experts are beginning to cast doubt on its sustainability credentials. Amy Peacock reports.
"People are using rammed earth to sell something that is essentially concrete," said Rowland Keable, CEO of the charity Earth Building UK and Ireland and founder of Rammed Earth Consulting.
"I've seen, in the UK, rammed-earth projects going into the glossy architecture mags and you think, 'wow, that's a beautiful l