The cause of the yellow sky is unknown.
A yellow sky has been reported across the UK and Europe, with people taking to social media to share photos of their unusual views. The phenomenon is known as “air pollution haze” and is caused by a mixture of pollutants, including sulphur dioxide, nitrogen dioxide and dust particles. Although it’s not clear what exactly caused the yellow sky on October 27th, scientists are looking into several possible causes.
What is air pollution haze?
Air pollution haze is a combination of pollutants that causes a hazy appearance in the air. It can be caused by emissions from factories or vehicles, as well as dust from construction sites or windblown dust from the Sahara desert. Air pollution haze can also be caused by wildfires or smoke from forest fires.
Why was there an orange sky yesterday?
On October 26th, the same day that Parliament dissolved for the upcoming general election, an orange glow appeared in the skies over London and other parts of England.
It was believed to be caused by Saharan dust blowing in from Africa, but this has since been debunked.
A spokesperson for Defra said: “Defra’s experts have analysed satellite data which shows that this event was not related to Saharan dust”. Instead, it seems that fires in southern Europe were responsible for causing this strange phenomenon.
