In the summer of 1959, a group of American soldiers began carving trenches in the Greenland ice sheet. Those trenches would become the snow covered tunnels of Camp Century, a secret Arctic research base powered by a nuclear reactor.

Camp Century operated for six years, during which time the scientists based there managed to drilling a mile down to collect a unique set of ice cores. But by 1966, it had been abandoned, deemed too expensive and difficult to maintain.

Today, Donald Trump’s territorial ambitions for Greenland continue to cause concern and confusion in Europe, particularly for Denmark and Greenlanders themselves who insist their island is not for sale.

One of the attractions of Greenland is the gleam of its rich mineral wealth, particularly rare earth minerals. Now that Greenland’s ice sheet is melting due to global warming, will this make the mineral riches easier to get at?

In this episode, we talk to Paul Bierman, a geologist and expert on Greenland’s ice at the University of Vermont in US. He explains why the history of what happened to Camp Century – and the secrets of its ice cores, misplaced for decades, but now back under the microscope – help us to understand why it’s not that simple.

This episode was written and produced by Mend Mariwany and Gemma Ware with editing help from Katie Flood. Mixing by Michelle Macklem and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation.

If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation.

• Why Greenland is indispensable to global climate science
• Greenland is rich in natural resources – a geologist explains why
• Greenland: Staying with the Polar Inuit. How a secret military base helped trigger the silent collapse of an Arctic world
• The US military has cared about climate change since the dawn of the Cold War – for good reason

Mentioned in this episode:

The Making of an Autocrat

Search "The Conversation Weekly" for our new series: The Making of an Autocrat. Is America watching its democracy unravel in real time? In The Making of an Autocrat from The Conversation, six of the world’s pre-eminant scholars reveal the recipe for authoritarian rule. From capturing a party, to controlling the military, Donald Trump is borrowing from the playbook of strongmen thoughout history. This is the story of how democracies falter — and what might happen next.

In a moment being celebrated by global marine conservationists, a new UN high seas treaty comes into force on January 17 providing a new way to govern the world's oceans.

The UN high seas treaty will allow for the creation of protected areas in international waters, like national parks. But the treaty has some grey areas – notably its powers to regulating fishing in international waters, and mining of the seabed.

In this episode we speak to Callum Roberts, professor of marine conservation at the University of Exeter in the UK, about how the treaty came to be and the challenges now facing its implementation.

This episode was written and produced by Mend Mariwany and Gemma Ware. Mixing by Michelle Macklem and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation.

If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation.

• Global power struggles over the ocean’s finite resources call for creative diplomacy
• Targets to save 30% of the ocean by 2030 aren’t being met, new report reveals
• The historic High Seas Treaty is almost reality. Here’s what it would mean for ocean conservation
• A landmark treaty could protect the high seas – and spark new conflicts

Mentioned in this episode:

The Making of an Autocrat

Search "The Conversation Weekly" for our new series: The Making of an Autocrat. Is America watching its democracy unravel in real time? In The Making of an Autocrat from The Conversation, six of the world’s pre-eminant scholars reveal the recipe for authoritarian rule. From capturing a party, to controlling the military, Donald Trump is borrowing from the playbook of strongmen thoughout history. This is the story of how democracies falter — and what might happen next.

In November, six Democratic lawmakers recorded a video directed at members of the US military and intelligence agencies. In it, they issued a blunt reminder:

"The laws are clear: you can refuse illegal orders. […] You must refuse illegal orders."

The lawmakers were issuing the warning against the backdrop of US airstrikes on boats off the coast of Latin America the Trump administration claims are suspected drug runners. Many Democrats and legal experts, however, argue these strikes are illegal.

Since returning to office, Trump has successfully expanded his power over his own party, the courts and the American people. Now, like many autocrats around the world, he’s trying to exert control over the military.

In the final episode of The Making of an Autocrat, Joe Wright, a political science professor at Penn State University, says:

"I am very concerned that getting the military to do illegal things will not only put US soldiers at more risk when they do engage in international missions in the future […] it’s a first step to using the military to target domestic political opponents. That’s what really worries me."

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.

The list of people Donald Trump has punished or threatened to punish since returning to office is long. It includes the likes of James Comey, Letitia James, John Bolton, as well as members of the opposition, such as Adam Schiff, Mark Kelly and Kamala Harris.

In fact, he has gone so far as to call Democrats “the enemy from within”, saying they are more dangerous than US adversaries like Russia and China.

According to Lucan Way, a professor of democracy at the University of Toronto, when a leader attacks the opposition like this, it’s a clear sign a country is slipping into authoritarianism.

As Way says in episode 5 of The Making of an Autocrat:

"In other kind of countries with weaker justice systems, you can literally jail members of opposition or bankrupt them. In a country like the United States, where the rule of law is quite robust, this is not possible, you can’t just jail rivals at will."

But Trump has other ways of making the cost of opposing him too high for his critics to bear. This includes investigations, lawsuits, audits, personal attacks – anything to distract and silence them.

The effect is his opponents become much more reluctant to engage in behaviour they know that Trump won’t like, Way says:

"So it really has this kind of broader silencing effect that I think is quite pernicious."

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.

In democratic systems, the courts are a vital check on a leader’s power. They have the ability to overturn laws and, in Donald Trump’s case, the executive orders he has relied on to achieve his goals.

Since taking office, Trump has targeted the judiciary with a vengeance. He has attacked what he has called “radical left judges” and is accused of ignoring or evading court orders.

The Supreme Court has already handed the Trump administration some key wins in his second term. But several cases now before the court will be pivotal in determining how much power Trump is able to accrue – and what he’ll be able to do with it.

As Paul Collins, a Supreme Court expert from the University of Massachusetts-Amherst, explains in episode 4 of The Making of an Autocrat:

"It’s all about presidential power. And that’s really significant because it’s going to enable the president to basically inject a level of politics into the federal bureaucracy that we frankly haven’t really seen before in the US."

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.

Donald Trump has sounded the alarm, over and over again, that the United States is facing an “invasion” by dangerous gang members. He blames immigrants for the country’s economic problems and claims protesters are destroying US cities.

Trump is not the first would-be autocrat to manufacture a crisis to seize extraordinary powers.

As Natasha Lindstaedt, an expert in authoritarian regimes at the University of Essex, says in episode 3 of The Making of an Autocrat, a strongman “loves a crisis”.

"A crisis is the way that they mobilise their base, the way that they can depict themselves as the saviour, as this messianic type of figure that is going to save people from this chaotic world."

So, is the United States really facing a national emergency? Or is this just a tactic on Trump’s part to amass more power?

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.

Every autocrat needs a clan of loyalists, strategists, masterminds – these are the figures behind the scenes pulling the strings.

They’re unelected and unaccountable, yet they wield a huge amount of power.

This is the role Stephen Miller has played for Donald Trump – he is the architect in chief for the second Trump administration. He has so much power, in fact, he’s reportedly referred to as the "prime minister."

So who is Stephen Miller? And why are architects so important in helping a would-be autocrat amass power?

As Emma Shortis, a Trump expert and an adjunct senior fellow at RMIT University in Melbourne, explains in episode 2 of The Making of an Autocrat:

"[Miller] is the kind of brains behind particularly Trump's hardline stances on immigration and the Trump administration's ability to use the levers of power, and expand the power available to the president.

I think what Stephen Miller demonstrates and, and history has demonstrated over and over again is that autocrats cannot rise to power by themselves. They often require a singular kind of charisma and a singular kind of historical moment, but they also need architects behind them who are able to facilitate their rise to power."

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.

We used to have a pretty clear idea of what an autocrat was. History is full of examples: Adolf Hitler, Joseph Stalin, Mao Zedong, along with Vladimir Putin and Xi Jinping today. The list goes on.

So, where does Donald Trump fit in?

In this six-part podcast series, The Making of an Autocrat, we are asking six experts on authoritarianism and US politics to explain how exactly an autocrat is made – and whether Trump is on his way to becoming one.

This episode was written by Justin Bergman and produced and edited by Isabella Podwinski and Ashlynne McGhee. Sound design by Michelle Macklem.