Global Warming Bringing "Synchronized Fire Weather" To Multiple Regions Across Earth, Simultaneously And Quickly

[hatrack]

The extreme heat, high winds, and severe dry conditions that produce towering, fast-moving flames that advance by the acre are not just becoming more common; new research shows that these factors are increasingly arising in multiple regions at the same time, creating the conditions for simultaneous wildfires around the world.

In a study published today in the journal Science, researchers reported that the ideal conditions for major wildfires are now aligning across different parts of the world at more than double the rate they did nearly 50 years ago. Climate change is a major driver, accounting for about half of this increase. It’s the latest example of how humans are reshaping the nature of wildfires. These changes have led to periods of inescapable smoke from blazes and more stress on firefighters, expanding the public health, economic, and social costs of infernos. As the climate continues to warm, these trends are likely to continue to worsen.

EDIT

Cong Yin, the lead author of the study and a scientist at the University of California Merced, explained that research has been piling up showing that the weather conditions that favor major wildfires are becoming more common in different regions. Yin wanted to take a step back to see if there was a pattern that would emerge when he looked at the world as a whole. Yin and his colleagues analyzed global climate and fire data between 1979 and 2024 and traced the fire weather index, a measure of fire dangers based on meteorological traits like temperature, wind, and moisture. The higher the index reaches, the greater the chances of a dangerous wildfire. The team drew on fire activity records from the Global Fire Emissions Database, which uses satellite data and ground-based measurements to track burned areas around the world. The team then counted the number of days where the fire weather index was in the 90th percentile in more than one region.

The results showed that over the study period, days with extreme fire weather conditions were increasing in places inside regions like North America, but also seeing severe fire weather line up across far-flung areas like North America and Europe. That makes it harder to coordinate firefighting efforts across borders.

EDIT

https://grist.org/wildfires/scientists-have-found-another-alarming-pattern-in-wildfires/

[mountain grammy]

1. The fire threat in Colorado is now year round..

Should've buried those power lines years ago..