Is tidal power a viable energy source?

In the 1990s, the video game industry was locked in competition between gaming giants Sega and Nintendo, battling for dominance in living rooms around the world as they raced to deliver the best games on their consoles while attacking one another in advertising. This rivalry resh ...  Show more

Headspace started life as a mindfulness app. Now it's partnering with the US Navy and investing in artificial intelligence for mental health support.The company's CEO Tom Pickett speaks to us about therapy, the increasing role of technology, and tackling burnout at scale.If you'd ...  Show more

Companies around the world are trying to harness the power of the tides to create a renewable energy source. Canada’s Bay of Fundy is a promising place to do it because it has the hi ...

As the world slowly moves away from using fossil fuels for electricity, one tiny Scottish island has proved it’s possible to rely almost entirely on renewables.

The inner Hebridean isle of Eigg used to get its power from diesel generators. But in 2008 its residents launc ...

Progress in wave and tidal energy hasn’t been slow – it’s been nonexistent. Despite media attention, strategic investments from large energy companies and strong support from national governments, the marine renewables industry has seen mostly technical failure over the last deca ...  Show more

Alternative sources of power are moving into the spotlight.

As the share of dispatchable power in our electricity system declines, with coal-fired plants giving way to variable wind and solar, maintaining reliable supplies to keep the lights on becomes more complex. Inve ...