Climate Action

The link between 4 July fireworks and wildfires

A child watches a Fourth of July fireworks in New York City, while holding an American flag.

The 4 July is responsible for a large spike in wildfires. Image: REUTERS/Andrew Kelly

Niall McCarthy
Data Journalist, Statista
Our Impact
What's the World Economic Forum doing to accelerate action on Climate Action?
The Big Picture
Explore and monitor how United States is affecting economies, industries and global issues
A hand holding a looking glass by a lake
Crowdsource Innovation
Get involved with our crowdsourced digital platform to deliver impact at scale
Stay up to date:

United States

  • Scientists and officials urged Americans to break tradition and not set off fireworks for this year's Fourth of July celebrations.
  • The U.S. Pacific northwest and Canada is currently undergoing a heatwave.
  • The warm and dry conditions make wildfires easier to start and more difficult to put out.
  • Last year, there were 52,113 wildfires in the U.S. that burned 9 million acres.
  • Between 1992 and 2015, 95% of wildfires were started by humans.
  • The Fourth of July is responsible for a large spike in wildfires.

Scientists and officials have been urging Americans to break with tradition and ditch fireworks this Fourth of July amid a sweltering heatwave in the U.S. Pacific northwest and Canada. Given that swathes of the western U.S. are dried out and a potential tinderbox, a single spark could be enough to ignite a catastrophic wildfire. The dangers posed by the current temperatures became real in Canada where the village of Lytton was virtually wiped out by a wildfire. Located 162 miles northeast of Vancouver, it had just recorded the country's highest temperature and thankfully, its 250 residents were able to flee the inferno, though mostly without their belongings.

Research by Mietkiewicz et al published by The Conversation shows that the vast majority of wildfires in the U.S. are started by humans rather than lightinng and that they extend the fire season. The data focuses on fires started in the west's wildland-urban interface which is a transition zone between unoccupied land and human development that is especially prone to blazes. The research shows that when all fires are taken into account daily between 1992 and 2015, 95 percent were started by humans with a large spike evident around the Fourth of July.

Have you read?
a chart showing how fireworks on july the fourth often result in wildfires
95% of wildfires were started by humans and the Fourth of July is responsible for a large spike. Image: Statista

Warm and dry conditions are making wildfires easier to start and more difficult to put out, a trend that can be clearly seen by last year's record-setting season. It saw 52,113 wildfires (as of late November) that burned close to nine million acres, nearly double the amount burned in 2019 and 2.3 million more acres burned than the 10-year average. Given that this summer is already being characterized by a historic heatwave, extreme drought and record temperatures, 2021 is shaping up to be a particularly devastating U.S. wildfire season.


What’s the World Economic Forum doing about climate change?

Don't miss any update on this topic

Create a free account and access your personalized content collection with our latest publications and analyses.

Sign up for free

License and Republishing

World Economic Forum articles may be republished in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License, and in accordance with our Terms of Use.

The views expressed in this article are those of the author alone and not the World Economic Forum.

Related topics:
Climate ActionNature and Biodiversity
World Economic Forum logo
Global Agenda

The Agenda Weekly

A weekly update of the most important issues driving the global agenda

Subscribe today

You can unsubscribe at any time using the link in our emails. For more details, review our privacy policy.

Translating Critical Raw Material Trade into Development Benefits

Jack Hurd

May 23, 2024

About Us



Partners & Members

  • Join Us

Language Editions

Privacy Policy & Terms of Service

© 2024 World Economic Forum