BBC News Technology of Business

Heat pumps could radically cut household CO2 emissions, but there's a shortage of qualified installers.

India's long history with diamonds enters a new chapter as lab-grown versions of the gem take off.

A process that turns waste plastic and CO2 into fuel has been developed at Cambridge University.

Aerogel is described as the most effective insulating material known to science, so why isn't it used more?

Businesses are discovering tweaks that can dramatically reduce the environmental impact of their websites.

Despite setbacks, robotaxi services from Cruise and Waymo are making progress, but will they make money?

A diamond sphere made in Germany was key to December's breakthrough fusion experiment in California.

Shrimp farming has been criticised for causing environmental damage - can tech clean it up?

ASML machines make computer chips - with technology so advanced the firm is caught in geopolitical rivalry.

A project is under way in northern Sweden which will drastically cut CO2 emissions in making steel.

Researchers warn that AI could flood social media with harmful and misleading content.

New technology promises to ease the strain caused by energy-guzzling data centres.

Desperate to protect their tools from being stolen, tradespeople are considering sophisticated security systems.

The 23-year-old inventors hope self-sailing vessel will transform understanding of ocean weather.

Worries over privacy and the cost of living have curbed interest in voice assistants like Alexa.

Firms are creating artificial animal fats that they promise will make meat-free products taste better.

A revival of hemp cultivation in Portugal has spurred the use of hemp blocks in construction.

More people are heating their homes with heat pumps and some are getting data obsessed.

Ordinary diesel trucks could be converted to a hydrogen-diesel mix, according to researchers in Australia.