Why are countries around the world experiencing excessive heat? | BBC News - Video

Many parts of the world are currently experiencing above-average temperatures, with meteorologists saying this is largely a result of global warming.

While some areas are seeing colder conditions, far more regions are enduring temperatures described as being quite a lot warmer than average.

Swathes of the globe including North America, southern and eastern Asia and south-eastern Europe are currently experiencing extreme temperatures.

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