3 June 2023
People in Freetown, Sierra Leone, are increasingly exposed to extreme heat due to climate change and the urban heat island effect, but covering homes in a reflective film significantly cut indoor temperatures
2 June 2023
A monstrous concrete pipe with a capacity of 1.6 million cubic metres is being built under London to reduce the frequency of sewage discharges into the Thames
1 December 2022
Most wind turbines are made from a mix of materials, making them hard to recycle – but wood could offer a more sustainable alternative
23 February 2022
Smart engineering solutions such as “sand motors” and artificial reefs will defend our coasts for a while. But in many places, conversations are already turning to a managed retreat inland
28 April 2020
Max up the yuck factor: environmental engineer Raffaela Villa explains how huge fatty deposits build up in our sewers and how we deal with them.
23 October 2019
Rising temperatures threaten the safety of steel bridges in the US and globally. In the next two decades, one in four such bridges in the US look set to fail
19 April 2018
Some of the last great wildernesses are being considered as likely candidates for geoengineering. It's a sad reflection of climate failings, says Olive Heffernan
11 July 2017
The rules that guide fire ants to make tall towers with their own bodies could be applied to miniature search-and-rescue robots
28 June 2017
Dams provide vital green power but destroy precious river ecosystems. Could unleashing artificial floods give us the best of both worlds?
