Climate change has been cited as the reason, but also in Brazil, trees are being cleared for more farm land by fires set on purpose. This could really escalate the problem
Not long ago, it was reported that soy beans, I think it is soy beans, that China had been buying from the US, before Trump's tariffs, are now being bought from Brazil. Perhaps that market change added to the problem?
Weather in California, and in Portugal, and I've heard before in Australia, I think, has been a major factor. This must be true around the globe.
It is apparently only going to get worse.
For Trump to have dropped the US from the Paris climate agreements is outrageous. But I think that many of the US states are still basically trying to comply.
Wind increases the supply of oxygen, which results in the fire burning more rapidly. It also removes the surface fuel moisture, which increases the drying of the fuel. Air pressure will push flames, sparks and firebrands into new fuel. ... Wind can carry sparks and firebrands ahead of the main fire causing spotting.
At a certain point in the combustion reaction, called the ignition point, flames are produced. The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma.