A few days later, Lin Han got on the plane and returned to Yunzhou after three trips.

Not far from the airport is a long river that was once crystal clear, but now it is heavily polluted, and the green water stinks.

Passing by the bridge, Lin Han couldn't help frowning and stopped to look at the river in front of him.

He remembered what a teacher had said: Every country that grows stronger, agriculture and the environment have made great sacrifices, and this process is a history that will inevitably repeat itself.

In the past, Britain had the "London Smog Incident" that shocked the world because of industrial pollution, and a smog directly killed thousands of old, weak, sick and disabled, so that mankind suddenly woke up from the beautiful vision of industrialization.

In order to catch up with these developed countries on the road to industrialization, which have already spoiled the environment, other relatively backward countries have to continue to spoil the environment and quench their thirst.

As a result, the environmental problem has become a worldwide problem, almost unsolvable.

Like the river in front of you, it can be said that it is very common in the whole of China and even the world.

"Gaia, how do you feel about the current environment?"

"I don't know...... It's never been this bad, so I don't know exactly how bad it is...... It felt like I was sick and I was a little scared. Gaia looked very depressed.

"Before that, will you do anything yourself?" Lin Han asked.

"Just as you can't interfere with your heartbeat and blood flow, it's hard for me to interfere with specific environmental issues. Gaia said slowly, "What I can do, in your opinion, is more like a rule, nothing special, and it won't attract too much attention from you......"

Lin Han listened and was silent for a while.

"Before I met you, for so many years, I could only watch quietly and do nothing about the things that frightened me. Now I can at least do something with you, so, no matter what- Lin Han, thank you......" Her voice was a little warm.

"That's what you're saying, what's polite to me, or- let's get a raise. Lin Han was a little embarrassed.

Gaia: "......"

There is no doubt that she is a principled earth.

"You try the intermediate creature permission, this permission, you can do a lot of things. ”

"I almost forgot if you didn't say it. Only then did Lin Han remember the middle-level biological authority that could manipulate microorganisms.

With such a windy authority, try it quickly.

Intermediate Biological Clearance - Can manipulate and influence all microorganisms within a radius of one kilometer.

The so-called microorganisms are all tiny organisms that cannot be observed by the human eye, mainly including bacteria, viruses, fungi, and some tiny protists.

There are far more microorganisms than other organisms. For example, the number of microorganisms in the cultivated layer of soil in one acre of land can exceed 100 billion, and the weight adds up to at least the weight of an adult.

Huge amounts of microbes are everywhere, and their power can be blind or very powerful.

In Lin Han's perception, the surroundings were up and down, in all directions, whether it was the smelly river water in front of him or the seemingly clean ground, they were actually densely covered with various microorganisms, and it was almost impossible to find a blank space.

With a thought in his mind, within a radius of one kilometer, a large area of microorganisms with the ability to decompose matter quickly gathered and floated towards the river in front of him.

Microorganisms gathered and in the blink of an eye, they covered a large area of foul water.