A landmark new report has warned that cities around the world could face huge floods as sea levels rise faster than anticipated.
Over 100 scientists from 36 countries have released the Special Report on the Ocean and Cryosphere in a Changing Climate which contains a harrowing prediction that sea levels could rise over one metre by the end of the century if greenhouse gas emissions continue to rise.
Not only would the rise of sea levels be catastrophic - the temperature rise could lead to acidification of the sea threatening coral and fisheries around the world.
The UN panel described the climate changes as "unprecedented" and said drastic action need to be taken to stop it.
In a report last year the same scientists said it was crucial that the rise in temperatures kept under a 1.5C target - but that the world is hurtling off course and a 3C rise is now a possibility.
At the moment the world is about 1.2C hotter than in pre-industrial times.
The 144 countries participating in the Paris Agreement said they would try and limit the increase to 1.5C this century.
Although these numbers seem small - if the world dropped by 5C tomorrow we'd be plunged into an ice-age, so each tiny change can have a huge effect.
So what if temperatures rise by two? What would Dublin look like?
The majority of the docklands would be completely wiped out, while areas such as East Wall and Ringsend would also stop existing.
You'd have to say goodbye to Portmarnock while Bray wouldn't be fairing too well either.
Surprisingly Dun Laoghaire wouldn't be hit as hard as expected. Here's the maps of each area of Dublin in a scenario where global temperatures are two degrees.
Balbriggan - Skerries
Skerries - Rush
Portmarnock
Howth
Central (Clontarf - Ringsend)
Blackrock to Dun Laoghaire
Killiney/Dalkey
Bray
What if the average global temperature was four degrees?
It wouldn't be great....
