APR 01, 2021 9:35 AM PDT

What does lightning in the Arctic mean for the future?

Climate change strikes again -  literally. New findings from a study published in the journal Nature Climate Change report an increase of lightning strikes in the Arctic Circle. Lightning strikes in this region of the world are uncommon, but 2019 came in as the year that saw a rise in lightning within 300 miles of the North Pole, according to the National Weather Service in Alaska. The study, conducted by researchers at the University of California, Irvine, says that this trend is likely to continue. 

"We projected how lightning in high-latitude boreal forests and Arctic tundra regions will change across North America and Eurasia," said lead researcher Yang Chen, of the UCI Department of Earth System Science. "The size of the lightning response surprised us because expected changes at mid-latitudes are much smaller."

Although the connection between lightning and climate change may not be immediately clear, the two are most definitely related. As CO2 increases in the atmosphere and land temperatures rise, we are seeing more frequent and stronger storms, which bring with them lighting. But the lightning-climate change relationship isn’t only unidirectional, lighting also affects climate by the nitrogen oxides it releases which act as strong greenhouse gases. Watch the video below to learn more. 

Co-author of the study James Randerson is a professor in UCI's Department of Earth System Science. Randerson took part in investigations about the 2015 Alaskan wildfires, which he says spurred interest in the research on lightning. "2015 was an exceptional fire year because of a record number of fire starts," Randerson said. "One thing that got us thinking was that lightning was responsible for the record-breaking number of fires."

With this in mind, the team used climate projection models to determine a relationship between the flash rate and climatic factors in the Arctic. They found that increases in atmospheric convection and more intense thunderstorms resulted in a significant increase in lightning strikes.

But what, you may ask, is the harm of a little more lightning? Randerson explains that the harm comes from the dangerous consequences of wildfires, which greatly alter Arctic ecosystems, modifying them from tundra to forest. This produces a positive feedback mechanism because forests absorb more solar heat than tundra (due to the albedo effect), thus increasing land surface temperatures. Additionally, higher temperatures melt permafrost, which in turn releases methane and carbon dioxide, which warms the climate even more. 

The authors hope that their findings will urge the public to call for more investigation into this topic. "This phenomenon is very sporadic, and it's very difficult to measure accurately over long time periods," concludes Randerson. "It's so rare to have lightning above the Arctic Circle." 

Sources: Nature Climate ChangeScience Daily

About the Author
  • Kathryn is a curious world-traveller interested in the intersection between nature, culture, history, and people. She has worked for environmental education non-profits and is a Spanish/English interpreter.
You May Also Like
JAN 22, 2021
Earth & The Environment
Indigneous lands represent more than just conservation opportunities
JAN 22, 2021
Indigneous lands represent more than just conservation opportunities
We’ve heard it before: the lands occupied and stewarded by Indigenous peoples are crucial biodiversity hotspots. N ...
JAN 29, 2021
Earth & The Environment
The surprising sex lives of lichen
JAN 29, 2021
The surprising sex lives of lichen
Just like eavesdropping neighbors, scientists from Quebec's Université-Laval are peeping in on the shocking s ...
FEB 09, 2021
Earth & The Environment
Scientists Spotlight Dangers of Ocean Noise Pollution
FEB 09, 2021
Scientists Spotlight Dangers of Ocean Noise Pollution
Many ocean species use sound to communicate and survive. Sound is a crucial communication method since vision is limited ...
FEB 19, 2021
Microbiology
Weed Killers May Raise Levels of Antibiotic-Resistant Microbes in Soil
FEB 19, 2021
Weed Killers May Raise Levels of Antibiotic-Resistant Microbes in Soil
Chemicals that are designed to kill weeds, known as herbicides, can apparently raise the levels of antibiotic resistant ...
FEB 24, 2021
Plants & Animals
Texas Freeze Caused Historic Sea Turtle Stranding Event
FEB 24, 2021
Texas Freeze Caused Historic Sea Turtle Stranding Event
In addition to the millions of humans who suffered through Texas' historic freeze last week, local wildlife also exp ...
MAY 03, 2021
Earth & The Environment
How big of a problem are nanoplastics really?
MAY 03, 2021
How big of a problem are nanoplastics really?
A new paper published in Nature Nanotechnology calls for intensified research into the movement of nanoplastics within o ...
Loading Comments...