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The great mosquito swap

Scientists are hoping to stop diseases spreading by changing the mosquito population

• 23 mins

DNA tests for dogs to tackle problem poo

US residents fed up with dog mess are using a high-tech solution

• 22 mins

The reuse and refill revolution

Should we reuse and refill plastic packaging to limit the amount being thrown away?

• 23 mins

The tree detectives tackling illegal logging

Scientists are building a database to help them tell exactly where wood has come from

• 24 mins

Could a device invented in the 1930s help end period poverty?

The people hoping to use sanitary pad micro-factories and silicone cups to help women

• 22 mins

Working Less For The Same Pay

Some companies are cutting the hours their staff work but keeping their pay the same

• 24 mins

Reinventing the ranch

Can the cattle ranch be updated to fight climate change?

• 24 mins

Audience takeover: Your plastic solutions

We hear what you, our listeners, are doing to tackle the problem of plastic waste.

• 24 mins

Can sleep deprivation help treat bipolar disorder?

An Italian doctor asks patients to stay awake all night, to try to allay their depression

• 24 mins

Can capturing carbon buy us time to tackle climate change?

The projects that are trying to take CO2 out of the atmosphere

• 22 mins

Portugal, drugs and decriminalisation

In 2001 Portugal decriminalised personal drug use to tackle a heroin crisis.

• 24 mins

Life-saving surgery, but not by a doctor

Nurses and midwives in Ethiopia are being trained to perform emergency operations

• 22 mins

Residents turn detective to fight crime

Neighbours in the US are using cameras that read car number plates to cut crime

• 22 mins

The school that puts wellbeing first

One primary school has found a way to deliver therapy to about 10% of its students

• 23 mins

Trieste鈥檚 mental health 鈥榬evolution鈥�

How Italy鈥檚 radical decision to close its mental asylums shaped the way we think today

• 24 mins

Stopping child marriage with solar lanterns

Solar-powered lamps are giving girls independence and stopping them becoming child brides

• 24 mins

A simple way to help a relative if they鈥檙e arrested

A group in California is teaching families how to help loved ones charged with crimes

• 24 mins

Putting a price on carbon

How to increase the cost of causing climate change

• 23 mins

Bangladesh鈥檚 biker girls

The motorbike taxi app where the drivers and passengers are all women.

• 23 mins

The concrete cleaners

Making cement that locks in carbon dioxide instead of releasing it into the atmosphere

• 23 mins

Oysters to the rescue

The humble oyster is helping to keep the oceans clean and protect shorelines

• 24 mins

A new way to detect an invisible poison in water

Scientists hope a new test will save millions from drinking arsenic in their water

• 22 mins

Meeting Colombia鈥檚 鈥榁iolentologist鈥�

How a doctor in Colombia changed the way cities monitor and prevent violence

• 24 mins

The snakebite squad

A team in Kenya has introduced motorbike ambulances for people bitten by snakes

• 23 mins

Spotting the sound of a cardiac arrest

Copenhagen is experimenting with a new way of analysing emergency calls

• 24 mins

Turning waste into energy

Instead of sending all our waste to landfill, some companies are using it to make energy

• 24 mins

Shopping for a better life

How a grocery store is bringing health care to people who can鈥檛 usually afford it

• 22 mins

The town rethinking the future of energy

Energy companies have come together in Finland to tackle climate change

• 23 mins

Gaming for good

Gamers are helping scientists to analyse research and develop new drugs

• 23 mins

The future of freight

Designing eco-friendly lorries to make cleaner, greener deliveries

• 24 mins