On a global scale, fire emissions/burned area peaked in the 1910s, but then plummeted to “
about 5% below year 1700 levels by 2010” (Ward et al., 2018).
The decreasing trend in wildfires has continued unabated in the 21st century, as there has been “
a strong statistically significant decline in 2001–2016 active fires globally” (Earl and Simmonds, 2018).
On a long-term scale, “
global biomass burning during the past century has been lower than at any time in the past 2000 years” (Doerr and Santín, 2016).
Even in the Western United States, where wildfires are currently ravaging the landscape, there has been a “
decline in burning over the past 3,000 y[ears], with the lowest levels attained during the 20th century and during the Little Ice Age (LIA, ca. 1400–1700 CE)” (Marlon et al., 2012).
https://royalsocietypublishing.org/doi/full/10.1098/rstb.2015.0345
“Numerous reports, ranging from popular media through to peer-reviewed scientific literature, have led to a common perception
that fires have increased or worsened in recent years around the world. Where these reports are accompanied by quantitative observations,
they are often based on short timescales and regional data for fire incidence or area burned, which do not necessarily reflect broader temporal or spatial realities.”
To summarize, there are “
widely held perceptions both in the media and scientific papers of increasing fire occurrence, severity and resulting losses“, and yet “
the quantitative evidence available does not support these perceived overall trends” (Doerr and Santín, 2016).
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017GB005787
“
Globally, fires are a major source of carbon from the terrestrial biosphere to the atmosphere, occurring on a seasonal cycle and with substantial interannual variability. To understand past trends and variability in sources and sinks of terrestrial carbon, we need quantitative estimates of global fire distributions. …
Global fire emissions of carbon increase by about 10% between 1700 and 1900, reaching a maximum of 3.4 Pg C yr−1 in the 1910s, followed by a decrease to about 5% below year 1700 levels by 2010. The decrease in emissions from the 1910s to the present day is driven mainly by land use change, with a smaller contribution from increased fire suppression due to increased human population and is largest in Sub‐Saharan Africa and South Asia. Interannual variability of global fire emissions is similar in the present day as in the early historical period, but present‐day wildfires would be more variable in the absence of land use change.”
And I can go on and on with published papers finding no connection between the bit of warming we have seen and fires...rather than look for opinion pieces written by alarmists, you might try looking at the actual science....generally speaking, there is quite a difference between the published literature and what the media prints.