Engineering publications brought to you by Mark Allen

Energy & environment

PM levels remained within World Health Organisation guidelines whilst students were in the building during school hours

Birmingham team gets measure of indoor air quality in schools

Pioneer 25 has been designed and built by Spark Racing Technology

How Extreme H plans to fast track automotive hydrogen

Fluorok co-founders Veronique Gouverneur & Gabriele Pupo

Oxford chemicals spinout Fluorok raises £7.7m

Aviation is responsible for around 2.5 per cent of annual emissions

Cambridge aviation report charts pathway to net zero

Dr Karma Zuraiqi from RMIT University holds a vial of copper, a key component of the team’s new catalyst

Liquid metal catalyses ammonia production

Steakholder's 'meat' printer is able to produce up to 420kg of plant-based meat blend alternatives within an hour

How the emerging alternative protein industry could help feed the world

Joulen claims smaller scale battery systems could help transform the grid

Government urged to allow smaller batteries on to grid

Lamp post charging back in play after advice review

Working with nature can be a powerful tool to protect coastal areas

Comment: Turning to nature to protect coastal communities

FireSat will be able to detect fires measuring about 5x5m

Google’s FireSat constellation to detect early stage wildfires

Alternative fuels must be regulated in order to thrive, writes Jesse Fahnestock from the Global Maritime Forum

Comment: New shipping fuels need regulatory framework to thrive

Water companies can produce around 250,000 to 300,000 tonnes of waste annually

The Engineer Q&A: ALL-Streams HTO – turning waste into resources