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Using lotteries to make us better people

The lotteries that nudge people to take medicine, pick up litter or pay their taxes

• 24 mins

Robots fixing sewers

The robots that navigate sewer pipes to find leaks and blockages so people don't have to

• 24 mins

Turning mud into ‘clean’ concrete

The man whose special powder turns waste soil into buildings

• 24 mins

Helping teenagers become good mums

Innovative projects around the world are trying to help teenage mums

• 24 mins

Safer cities for women

How can you stop women being harassed in the street?

• 24 mins

The library where the books are people

Borrow a stranger for a half-hour chat to challenge your prejudices

• 24 mins

Racing to get kids reading

How a race to write books and a gadget that counts words are helping child literacy

• 24 mins

Getting kids out of institutions

Meet the people finding families for some of the 5 million children living in care

• 24 mins

The future of wind power

How floating wind turbines and power-generating kites could help fight climate change

• 24 mins

Keeping medicines cool

How enzymes and earthen pots can help keep medicines safe

• 24 mins

The power of group therapy

Therapy has been helping Boko Haram survivors and street youth in Liberia.

• 27 mins

Saving kids with cancer

The Filipino doctor who’s found an affordable way of treating children with cancer

• 24 mins

Using finance to fight homelessness

How bank accounts and clever investments are improving the lives of homeless people

• 24 mins

Getting refugees out of tents

Can we provide better shelters than tents for displaced people?

• 30 mins

How to fix democracy

The debating platform that brings people together

• 24 mins

Fighting fashion waste

Turning discarded clothes into something useful

• 24 mins

What 3D printing can fix

How 3D printing is changing lives from prosthetic limbs to classroom aids

• 24 mins

Hands-Off Health Tech

How medics can treat people without touching them

• 24 mins

Robots on the beat

How police in the US are using tech, including robots, to fight crime

• 24 mins

How to get people eating less meat

Can ‘fake meat’ help reduce the amount of meat we consume?

• 24 mins

The food waste warriors

Three women with innovative projects stopping food from going to waste

• 24 mins

Dads on duty

How volunteer dads are reducing school violence in Louisiana

• 24 mins

Ending road deaths

How to stop cars from killing people

• 24 mins

Sustainability in death

How you can be eco-friendly after you die

• 24 mins

Educating refugees

Helping young displaced people get a better start in life

• 24 mins

Albatrosses and oysters fixing the world

How seabirds and shellfish are protecting our planet

• 24 mins

Picking up healthcare with the litter

Collecting rubbish as if your life depended on it

• 23 mins

COP27: Growing a forest the right way

Tree-planting schemes don’t always work, so what’s the best way to do forest restoration?

• 24 mins

Jobs for girls

How training women in male dominated professions is changing finances and attitudes

• 25 mins

The World Cup of football solutions

How football can solve problems off the pitch

• 24 mins