Europe is "under increasing threat" from global energy prices as their fossil fuel stock dry up, experts have warned.
Dr Aled Jones, director of the institute, said:
These maps show vulnerability in many parts of the EU and they paint a picture of heavily-indebted European economies coming under increasing threat from rising global energy prices.
It is vital that those shaping Europe's future political agenda understand our existing economic fragility.
The EU is becoming ever more reliant on our resource-rich neighbours such as Russia and Norway, and this trend will only continue unless decisive action is taken.
More top news
Philip Thomas doesn't like to dwell on the disaster that buried him alive - but he can still recall in detail how an unpaid debt saved him.
The deal would set up a free trade zone between the EU and Canada - and could be an important test for the UK's Brexit negotiations.
A mother has won her battle against the Home Office to allow her Nigerian sister into the country - so she can undergo a marrow transplant.