A new research has revealed that hot and dry climates have exacerbated wildfires around the world. Climate change is the main culprit as it has increased temperatures all over the globe. Due to rise in temperatures, wildfires have become aggressive, destroying trees that could absorb carbon in the atmosphere to suppress climate change.

Published in the journal Nature Communications, the study showed that normal duration of wildfires has sought a rise of more than quarter of the Earth's vegetated surface from 1979 to 2013. Fire weather season has now increased by nearly 19% all across the globe.

"Fire weather season length and long fire weather season affected area significantly increased across all vegetated continents except Australia. If these trends continue, increased wildfire potential may have pronounced global socio-economic, ecological and climate system impacts", said the researchers.

For the study, the researchers analyzed climate data and three indices of fire danger. This helped them map out wildfire patterns as far back as 1979. Temperature, humidity, rainfall and wind speed play a key role in kindling wildfires, and these all are being intensified by climate change, which is aggravating wildfires.

Wildfires help in forest clearing and improving grazing, but climate change has made them no-holds-barred wildfires that pose threat to human life and property in addition to nature.

The study showed that fire weather seasons have extended to across 29.6 million square kilometres (11.4 million square miles) of the Earth's vegetated surface. The United States has spent about $1.7 billion per year over the past decade to battle wildfires.