It’s nearly a century since it was discovered that the sun and other stars are powered by nuclear fusion. It’s when hydrogen atoms merge to form helium, and release huge amounts of energy.

Since then, scientists have dreamed of reproducing the process here on Earth, with one Nobel Laureate calling it “the sun in a box”.

It holds the promise of virtually limitless energy, with few emissions and waste. But recreating the conditions where fusion can take place are a vast engineering challenge. So how close are we to having a working reactor powered by fusion? And will the process solve all our energy problems?

Presenter: Tanya Beckett Producer: Louise Clarke-Rowbotham

This summer, countries across the world have experienced extreme weather events.

Flash floods have killed people in South Korea, Uganda, Australia and the US state of Kentucky, and heatwaves have broken records across Western Europe, North America and Japan.

However, countries across the world are developing ways to try to tame the weather. China, the UAE and the USA are at the forefront of research into methods of producing rain in drought-stricken areas.

And some scientists are thinking even bigger; investigating technologies which could cool the entire planet. This week, the Inquiry asks: Can we control the weather?

Contributors: Dr Rob Thompson, University of Reading Professor Katja Friedrich, University of Colorado, Boulder Professor David Keith, Harvard University Professor Elizabeth Chalecki, University of Nebraska Omaha

Presenter: Charmaine Cozier Producer: Ravi Naik Researchers: Anoushka Mutanda-Dougherty and Christopher Blake Technical producer: Nicky Edwards Broadcast coordinator: Brenda Brown

Image: Hands cradling a lightning storm (Credit: Getty Images)

A recent visit to Taiwan by Speaker of the US House of Representatives, Nancy Pelosi, has heightened tensions between the US and China. Their relationship is the worst it’s been in decades. America has accused China of dangerous military provocations in the region. China has warned the US not to play with fire.

Add to all that Russia’s invasion of Ukraine, and concerns that China could be contemplating something similar in Taiwan, and it’s time to ask the question: Will the US and China go to war over Taiwan?

Contributors: James Lin from the University of Washington and expert on Taiwanese history

Dr Yu Jie, Senior Research Fellow on China, Chatham House

(Photo: China and Taiwan boxing gloves - credit: Getty Images)

Images of queues, huge piles of luggage and even pilots loading their planes with cargo have plagued the media throughout the world. Airports have been in chaos for months as they have attempted to re-emerge from the Covid-19 pandemic, with Europe, the UK and the USA all having suffered the worst of the effects so far. Flight cancelations have played havoc with business travellers and holiday makers alike, and the problem only appears to be getting worse as a whole raft of flights have recently been cancelled in the UK.

All this begs the question, Why are things so bad right now and how do we fix the situation? So this week on the inquiry we ask, Will air travel ever return to normal?

Producer: Ravi Naik and Christopher Blake Editor: Tara McDermott (Photo: Flight boards at the height of the summer rush July 2022 Frankfurt Airport, Germany/credit: BBC images)

Tunisian President Kais Saied has drafted a new constitution for Tunisia that gives him new sweeping powers, including authority over the judiciary and immunity for life from prosecution.

Tunisia was a beacon of hope for democracy after the Arab Spring. The country rid itself of dictator Ben Ali after 24 years of rule and moved to a more democratic system.

Now the country seems to be sliding back towards the one man rule that it has known for generations.

This week on The Inquiry we are asking why Tunisia has turned its back on democracy.

Presenter: Tanya Beckett Producer: Louise Clarke-Rowbotham Researchers: Anoushka Mutanda-Dougherty and Christopher Blake Technical Producer: Richard Hannaford Editor: Tara McDermott

(Tunisian presidential Kais Saied in Tunis. BBC Images)

In 2016 Britain voted to leave the European Union. There were warnings that pulling away from the largest trade bloc in the world would be damaging to the UK’s finances. Those that campaigned for Brexit argued it would offer the UK self-determination and the freedom to forge its own trade relationships.

Who was right?

This week on The Inquiry we attempt to disentangle the numbers from the complications of the global pandemic and the war in Ukraine and ask, what impact has Brexit had on the UK’s economy.

Presenter: Tanya Beckett Producer: Louise Clarke-Rowbotham Researcher: Christopher Blake Technical Producer: Craig Boardman Edited by: Tara McDermott

(image: Trade between UK and EU. Getty images)

Sri Lanka is now in the worst economic crisis they have seen in decades, schools are closed, fuel is in short supply, there are power cuts and a shortage of food. The President has been forced to resign and the political future of the country is uncertain.

But can the current problems be traced back to a decision to take the country’s food production completely organic?

In 2021 the President of Sri Lanka announced a total ban on chemical fertilizer and pesticides. Health concerns were given as a reason, but in the background was the pandemic, loss of tourism and a lack of natural fertilizer available in the country.

After protests the ban on chemical fertilizer was reversed, but had it already caused too much damage?

This week on The Inquiry we ask, did organic farming cause Sri Lanka’s collapse?

Presenter: Charmaine Cozier Producer: Louise Clarke-Rowbotham Researcher: Christopher Blake Technical Producer: Richard Hannaford

(Anti government protesters invade the president's office in Colombo, Sri Lanka. 9 July 22 Credit: Tharaka Basnayaka /Getty Images)

A software engineer called Blake Lemoine has been suspended from Google after claiming an AI chatbot called LaMDA is a person with wishes and rights that should be respected.

He says the chatbot wants to be seen as a google employee, and not as a product. He also calls it his friend.

Google says it's reviewed his concerns and the evidence does not support his claims.

But what exactly is Artificial Intelligence? How does LaMDA work - and is AI capable of felt experience?

On the Inquiry this week, Charmaine Cozier asks, has AI developed consciousness?

Presenter: Charmaine Cozier Produced by: Ravi Naik and Christopher Blake Editor: Tara McDermott Technical Producer: Nicky Edwards Production Coordinator: Brenda Brown

This year India has experienced its worst heatwave since records began. The heatwave is estimated to have led to dozens of deaths across the region and led to forest fires and damage to wheat crops.

Health and livelihoods are threatened by the rising temperatures. How much can India adapt to heat that is rising to the limit of human endurance and what needs to be done to mitigate the effects of climate change?

Presenter: Tanya Beckett Producer: Louise Clarke-Rowbotham Editor: Tara McDermott Technical Producer: Craig Boardman

(A worker stops for water in scorching heat near India Gate, New Delhi. Credit: Arvind Yadav/ Getty Images)

Each year, Ukraine exports enough food to feed 400 million people around the world. But the Russian invasion has disrupted vital trade routes, trapping an estimated 25 million tonnes of grain in silos around the port city of Odesa.

The African Union describes the situation as a catastrophic scenario, and the UN Secretary General says the shortages could tip millions of people into food insecurity.

But how reliant is the world on Ukrainian – and Russian – grain? What will a shortfall do to the world’s most vulnerable countries?

On the Inquiry this week, Charmaine Cozier asks, has the war in Ukraine sparked a global food crisis?

Producer: Ravi Naik Researcher: Chris Blake Editor: Tara McDermott Technical Producer: Nicky Edwards Production Coordinator: Brenda Brown

Not so long ago the music industry was threatened like it had never been before as online piracy tore into the profit margins of record labels the world over. Often hailed as the saviour, Spotify stepped in and offered audiences a new way of enjoying their favourite artists and without the need to illegally download pirated material. Despite this, musical artists are becoming increasingly vocal about how difficult it is to make a living from streaming, all whilst record labels and Spotify are reporting huge profit margins.

This week, Tanya Beckett takes a closer at how online streaming services are affecting the music industry. Produced by: Chris Blake and Louise Clarke-Rowbotham Editor: Tara McDermott Technical Producer: Craig Boardman Production Coordinator: Brenda Brown

There was a time when living to 100 seemed impossible, but not any longer.

Can the process of ageing be slowed or even reversed? Do those who have already lived to 100 hold the secrets that will help us all live longer?

While science tries to find the answers to living a long and healthy life, societies with ageing populations, such as Japan, are finding new ways to help their older population live active and connected lives.

On the Inquiry this week, Charmain Cozier asks, how do we live to 100?

Presenter: Charmaine Cozier Produced by: Louise Clarke-Rowbotham and Ravi Naik Editor: Tara McDermott

(Chocolate 100th Birthday Cake. Credit: Getty images)