The amount of people at risk of flooding due to global heating is three times larger than previously thought.
According to a study in the journal Nature Communications, tens of millions more people are claimed to be at risk of flooding if we don't start urgently cutting our use of fossil fuels and emitting green house gases.
The latest scientific data has shown the scale of the issues coastal Wales could face due to sea levels rising.
In August, WalesOnline showed how much of Wales might eventually be underwater if action wasn't taken.
Now, even more detailed maps have been produced so you can see how your street could be affected.
The maps belows show the parts of Wales that could be under water within 80 years. This means that children born today will likely live to see this happen.
Previous predictions on sea level rises:
It is important to bear in mind that these images take into account if we make no cuts to emmisions.
But experts claim this can be prevented if we act now.
Cardiff
The map above shows the Welsh capital and which parts of of Cardiff are predicted to be underwater by 2100.
However, the situation is even more dire when you consider the areas at risk of flooding.
Newport
The parts of Newport potentially below sea level in 2100:
Bristol Channel
Swansea
Loughor Estuary
Rhyl
Porthmadog
You can see the map in full here.
How will the rest of the world be affected?
According to climate change organisation, Climate Central, by 2050, sea-level rise will mean land now home to 300 million people will on average flood at least once a year. Previous estimates had put that figure at about 80 million.
In the UK, 3.6 million people would face annual flooding by 2050 and up to 5.4 million by 2100 if emissions continue to rise.
These figures do not take into account coastal defences, which would be needed at increasing cost to protect people and property.
"These assessments show the potential of climate change to reshape cities, economies, coastlines, and entire global regions within our lifetimes,” said Dr Scott Kulp, a senior scientist at Climate Central and lead author of the study.
“As the tideline rises higher than the ground people call home, nations will increasingly confront questions about whether, how much, and how long coastal defences can protect them.”
The report also makes claims about the potential benefits of cutting emissions.
Rapid emission cuts would save 50 million people worldwide from annual coastal flooding by 2100. Without emission cuts, the sea would also entirely submerge land occupied by an additional 40 million more people, in comparison with the impact of rapid emission cuts.
