Ceramic honeycomb air filters could cut city pollution

Prototype air filtering stations placed in Paris, France, helped to keep the level of particulates below World Health Organization thresholds. Image credit - Pollution event in Paris by Tangopaso and Mariordo is licensed under CC0 1.0

A new type of outdoor filter that could cut city air pollution and is scheduled to be debuted at the 2024 Paris Olympics has been awarded the €3 million Horizon Prize on materials for clean air. The prize, which was announced on 30 October at the Innovative Industries for Smart Growth Conference in Vienna, Austria, was … Read more

Managing energy demand spikes with seasonal forecasts of heatwaves and cold spells

Researchers want to make climate forecasts more accessible to help the energy and other industries better predict spikes in usage.

The impact of heavy droughts, heatwaves and cold spells on energy demand and supplies would be lessened with seasonal climate forecasts that allow energy companies to better predict spikes in usage ahead of time, researchers say. Researchers already have the ability to predict what changes in climate can be expected in two to three weeks’ … Read more

Flat-pack homes and profit-sharing retrofits are making sustainable housing affordable

Solar panels help the SOLACE flat-pack houses produce more energy than needed.

Wealth-generating, flat-pack solar houses and a profit-sharing scheme that incentivises retrofitting are bringing sustainable living to people who would otherwise not be able to afford it. ‘One of the biggest problems that we see right now is (the creation of) a big gap between the lower and the middle classes. Everyone is talking about this … Read more

Hydrogen-powered boat plots course for the future of ocean travel

Every year, the technologies used to power the Energy Observer in its six-year round-the-world journey are being improved.

The first day that Jérôme Delafosse stepped aboard the Energy Observer, an experimental catamaran run on hydrogen, he knew the plan of sailing around the world on clean energy was a realistic one, he says. Now, the explorer and documentary maker is one year into a six-year odyssey around the globe with his friend Victorien Erussard, an … Read more

We need a drone register to ensure privacy and safety – air traffic expert

There is a fine line between the benefits of using drones and possible misuse.

Requiring drones to identify and authorise themselves before they can fly, which could be achieved by fitting them with SIM cards, could help to protect people’s privacy by providing an effective way to register both users and machines, according to air traffic management expert Robin Garrity. He has been working on the U-space plan, which … Read more

Catching ultrafine emissions could help develop cleaner cars

Scientists are developing a device to trap and analyse ultrafine particles from car exhausts.

Modern engines – in particular those which inject fuel at high pressure – maximise efficiency and cut carbon dioxide emissions, but may also release harder-to-catch pollution associated with cancers and lung, heart and Alzheimer’s diseases. In response, European researchers are analysing exhaust particles down to one billionth of a metre, which may help in the development of … Read more