Half of year will be ‘dangerously hot’ in tropics by 2100, research shows

Extreme heatwaves will be more common by end of decade unless more is done to cut emissions, say experts

The record-breaking heatwaves seen across much of the world in recent months will become increasingly common by the end of the decade, according to research.

Experts say how hot they will be is hugely" dependent on our ability to curb carbon emissions in the next few years.