Increasingly hot and dry climates, the result of global climate change, have led to a worsening of wildfires around the world, according to new research. In turn, wildfires are aggravating climate change by killing trees that could absorb carbon in the atmosphere.
The study, published in the journal Nature Communications, finds that fire season has gotten longer for more than quarter of the Earth’s vegetated surface from 1979 to 2013. Overall, across the globe, fire weather season increased by nearly 19%. The trend occurred on all continents where wildfires occur except Australia.
“Wildfires occur at the intersection of dry weather, available fuel and ignition sources,” the study authors write. “Weather is the most variable and largest driver of regional burned area.”
South America has faced one of the most dramatic increases in wildfire numbers and intensity, according to the study. Forests in the region have seen their fire season increase by an average of 33 days. Fires threaten to worsen the deforestation that has already destroyed much of the region’s forest land.
And if the loss of forests wasn’t bad enough, worsening wildfires caused by climate change create a feedback loop, the authors note. Forest fires decrease the number of trees that can absorb the carbon that causes climate change in the first place. “When average fire weather seasons are longer-than-normal or when long seasons impacted more global burnable area, net global terrestrial carbon uptake is reduced,” the authors write.
- Effective Altruism Promises to Do Good Better. These Women Say It Has a Toxic Culture of Sexual Harassment and Abuse
- Inside Bolsonaro's Surreal New Life as a Florida Man—and MAGA Darling
- From Jan. 6 to Tyre Nichols, American Life Is Still Defined by Caste
- As People Return to Offices, It’s Back to Miserable for America’s Working Moms
- The Real Reason Florida Wants to Ban AP African-American Studies, According to an Architect of the Course
- Column: Tyre Nichols' Killing Is The Result of a Diseased Culture
- Without Evusheld, Immunocompromised People Are on Their Own Against COVID-19
- Column: America Goes About Juvenile Crime Sentencing All Wrong
- Why Your Tax Refund May Be Lower This Year