Book review: Why do buildings collapse in earthquakes?

This month's letters discuss the assessment of roofs for solar panels, computer modelling of structures, and carbon savings.

Alasdair Beal sets out his views on how changes to codes of practice could enable engineers to achieve more efficient designs with lower embodied carbon.

Associate Editor, Jason Ingham, has selected a review article on machine learning for structural engineering as the ‘Featured Article’ from this issue. The article will be available free of charge for six months.