Wildfires in Australia have caused many houses to burn down. Why do wildfires often occur in Australia?

Unconsciously, a week has passed since 20 19.

In the past year, we have too many things worth paying attention to and commemorating. Apart from those highlights, Bian Xiao wants to talk about something different today, that is, what worries us and hurts us? Mountain fire.

I believe that the news of this year's Muli mountain fire still hurts everyone. I still feel sorry and sad for those 30 lives when I think about it now. And in this year, how many striking disasters like Muli mountain fire?

On August 20 19, a fire broke out in the Amazon rainforest. After dozens of days, the fire increased instead of decreasing. The Brazilian government had to dispatch troops to put out the fire, and more than 40,000 soldiers joined the fire fighting team. The Amazon rainforest fire has attracted the attention of the whole world. French President Macron said: This is a disaster for all mankind. The Amazon rainforest is called. Lung of the earth? What will happen to our planet if the lungs of the earth are burned? Breathe? ?

During the Amazon fire, US President Trump said: If necessary, the United States is willing to lend a helping hand to help put out the fire. However, before he could support Brazil, his backyard caught fire? Really hot.

165438+ 10, a mountain fire broke out in California, USA, and the situation was once very tense. Someone released a video of this mountain fire. The paradise town behind California is like a hell on earth. It's very scary.

In fact, California mountain fires are not once or twice, and 20 19 is particularly huge this time.

On the other side of the world, Australia is not much better. 2065438+September 2009, Australia in the southern hemisphere, contrary to us, is getting warmer. As the temperature rises, the mountain fire is also ready to move and eventually breaks out. Mountain fires in Australia are still raging wildly for half a year. A series of mountain fires have caused 50,000 square kilometers of land (equivalent to the area of three Beijing) to be burned. What is even more heartbreaking is that in New South Wales alone, more than 500 million animals were killed in the fire (Xinhua data), including koalas and other creatures unique to Australia.

Smoke from California mountain fires photographed in space

Then, 20 19 why are mountain fires so frequent?

Some people say that there are not only more mountain fires, but also stronger news dissemination ability. It's true. More and more world news has entered our ears, giving us a chance to hear more news about fires around the world. However, this is not the reason why we hide our ears. After all, compared with previous years, the increase in the number and scale of fires cannot be ignored.

So, what is the cause of the fire?

In fact, whether it is urban fire or mountain fire, human factors are the main inducement. Statistics show that 90% of forest fires are caused by human beings. Moreover, even if it is 10%, a large proportion will be blamed by human beings, because climate change brought about by human activities will also contribute to mountain fires.

With the intensification of global warming, the temperature is getting higher and higher, which has increased the probability of fire, as evidenced by the continuous breakthrough of high temperature and increasing living standard in Australia every year.

At the same time, dry air makes plants more flammable. Take Australia as an example. They are experiencing the driest spring in 120 years, and plants lacking water have become the hardest hit areas.

Besides, we have a proverb called. Wind helps fire, and fire borrows wind? Strong winds will bring more oxygen for burning and make the fire burn more violently. Some experts say that these strong winds are not unrelated to the El Ni? o phenomenon in recent years. As for the cause of the El Nino phenomenon, I believe everyone knows something about it?

What is even more frightening is that the fire and the change of environment and climate have formed a vicious circle of terror. The terrible fire destroyed more plants, making it more difficult to reduce carbon dioxide through photosynthesis, which brought great obstacles to human beings to stop climate change. If we can't effectively stop climate warming, it will lead to more mountain fires and extreme weather. Don't forget, burning consumes oxygen, which is originally with carbon dioxide? Fight? Weaker and weaker, the fire continues? Prefer one of them? , add fuel to the fire.

Mankind is facing an unprecedented crisis. Although mountain fires are a common phenomenon on the earth, shouldn't we humans undertake the obligation to save the earth? Now, instead of protecting the earth from natural disasters, what? Help others abuse? We really need to reflect.

We know that combustion requires three conditions: fire source, combustible and oxygen. We can't stop the latter two, only the first one can be controlled by human beings. Therefore, in any forest, grassland and other places, don't take any chances, and consciously abide by no smoking and no fire. Today, in Australia alone, hundreds of millions of animals have paid a painful price for human behavior. If we can't take a warning, I'm afraid we'll get burned sooner or later.

When we have the urge to smoke again near the mountains or forests, please look back at the previous photos and ask yourself: Is this the world we want?