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Stephen Armstrong

Is there a way to use social media for good? Scientists say yes

These startups are turning CO2 pollution into something useful

Is social media really to blame for London's knife crime?

The machines harvesting fresh water from thin air

Cambridge Analytica’s 'mindfuck tool' could be totally useless

To feed two billion more people, the world needs a bug diet

Silicon Valley's diet obsession is more than just a fad, it's dangerous

How Clash of Clans helped Supercell build a $10bn empire

China's new architectural wonders are inspired by ancient art

From wave power to smart buildings, this is the future of sustainable energy

Six ways that new technology will revolutionise shopping

The BBC's Big Cats tech hacks take nature docs to a whole new level

Inside the Amish town that builds U2, Lady Gaga, and Taylor Swift's live shows

Aubrey Plaza on social media anxiety and Instagram influencers

5 things you need to know about the future of cybersecurity

If we don't act now, superbugs will kill us before climate change does

How VC firm Index Ventures is hunting for the next Deliveroo

Catalonia plots digital government in exile in bid for independence

The NHS is going to trial a gig economy app for nurses

Momentum’s new activism app could change politics forever