Viewpoint: Grounding carbon emissions in ethics

This month's letters include discussion on Google's new London HQ, transparency in IStructE exams and codes of practice.

From 'topping up' buildings with lightweight extensions to pushing the case for education in timber design, Kelly Harrison wants wood to be a mainstream structural material. Helena Russell reports.

Nick Simpson explores three philosophical approaches to doing good and encourages readers to consider how these might be applicable in their work as structural engineers.