Amazon is known as the lungs of earth and definitely if lungs get damage whole body will face threat and the most intimidating part is speed with which it got burn.
The 'lungs of the earth' is a jingly sound-bite for people who really don't have even the slightest idea of even the most basic science behind any of this stuff.
Seems like it is very very common these days for lands which 'environmentalists' seek to take control over to mysteriously catch fire.
I use air-quotes around 'environmentalist' because these people really have no relationship to environmentalists of 40 years ago or environmentalists such as myself. Most people who are labeled environmentalists these days are basically terrorist funded by the global elite who's job is to arrange for their funders to have complete control over lands and resources. For every one of these 'neo-environmentalists' there are about 10,000 drooling idiots who get off on catchy phrases like 'lungs of the earth' and who will believe in the hearts that humans eating ungulates will kill the whole planet.
The tiny fraction of global elite bankers basically bought the 'environmentalist movement' in part by first buying the so-called 'education system'. When you can produce an infinite amount of money out of nothing you can, over time, buy just about anything you like.
Back to the fires in the Amazon, from what little research I've done they don't seem particularly extraordinary this year compared to the historical record. Seems like the main feature is that the global elite decided to move this 'get the Amazon' project forward and are using their 'social media properties' as one of the tools to do so. And probably some local operatives with their cans of diesel as well.