
A fall in the number of lightning strikes would result in fewer wildfires and damage to infrastructure. It is argued that it will also affect greenhouse gasses.
In 1769 the tower of the Church of the Nazaire in Brescia, Italy was struck by lightning igniting a huge arsenal of gunpowder being kept there. A large part of the city was destroyed and 3,000 people killed.
In 1977 several lightning strikes hit power lines in New York city resulting in blackouts and people trapped in underground trains, elevators and escalators. The power outage lasted for 25 hours causing chaos.
Lightning strikes can set off wildfires during long periods of drought and dry weather although it is thought that 84% are caused by human action. Wildfires whipped up by the wind are unpredictable and can spread very quickly. 2017 saw wildfires in several countries including California, New Zealand, Spain and Portugal which left widespread destruction and many dead.
The research looked at the movement of tiny ice particles within clouds. The electrical charges which build up form as lightning strikes: about 1.4billion annually worldwide.
Full details of the research can be found in Nature Climate Change in a paper by Declan L. Finney, Ruth M. Doherty, Oliver Wild, David S. Stevenson, Ian A. MacKenzie & Alan M. Blyth. It was funded by the Natural Environment Research Council.
From the archives: ORKNEY RELATIVES IN NEW ZEALAND BUSH FIRE
Reporter: Fiona Grahame
