How did 2023 become the hottest year on record?

From heatwaves to raging wildfires, 2023 was a scorcher of a year.

And with temperatures soaring off the chart, it’s now broken the world record, becoming the hottest year ever.

So, was this expected? What does this mean for our climate crisis? And could 2024 be even hotter?

ITV News Science Correspondent Martin Stew tells Faye Barker what you need to know...