The world is going to continue to heat up over the next few years, with a return to rapid global warming likely.
Experts say the Earth's climate is at a turning point and the next few years could be the warmest on record right around the world.
New research from the UK Met Office shows that a major El Nino event is in play in the Pacific - which is expected to heat the world overall.
But it could mean cooler summers in Europe for a while as the rest of the world warms.
Climatologist with Met Eireann Seamus Walsh explains what happens during an 'El Nino' event:
