Hello and welcome to the two-year anniversary of the Intelligence on Economist Radio.

Has it only been two years?

Huh.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

The rich world is by now well aware of the perils of a diet of cheap processed foods,

development in sub-Saharan Africa has outpaced the spread of that kind of awareness.

Now obesity is on the rise, even though undernourishment is still rife.

And a new mining project in Greenland will liberate a huge amount of rare earth minerals,

needed for all manner of electronics and renewable energy projects.

But who will get the spoils?

We go digging to find out.

First up though.

In their first phone call this week, America's president Joe Biden and his Russian counterpart

Vladimir Putin agreed to extend a nuclear arms treaty between their countries by five years.

The pact caps the number of nuclear warheads held by each.

According to them, they account for 90% of the world's stock of them.

This week's agreement came with little fanfare, a far cry from the paranoia of the 1960s.

The streets of jam, businessmen, trying to get to their families, panic-stricken people,

trying to get out of town.

Today's status quo looks comparatively stable, but to think the problem is over would be complacent.

This week a treaty banning the making or even the hosting of nuclear weapons came into force.

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