Homo sapiens.

Another three years of mending on the International Space Station.

Rogers, who just came up some time ago, is wearing a heavy spacesuit at this time, repairing some old-fashioned heat sinks outside the cabin.

Suddenly he turned his head and looked in the direction of the earth.

At this time, the space station is just over the Mediterranean region, and Europa, the Mediterranean Sea and the Sahara can be seen.

He has been busy repairing the internal facilities of the space station for the past few days, and has not watched the earth carefully.

'The blue Mediterranean is so beautiful...'

"Huh? That is?"

When his eyes shifted to the Sahara Desert, his expression froze.

Because he discovered that the northeastern part of the Sahara Desert was actually green at this time, which somewhat overturned his previous cognition.

Rogers didn't think too deeply, he continued to admire the scenery of the earth for a while, and then got busy again.

However, on the earth, many people are concerned about the afforestation of the Sahara Desert.

Under the tireless transformation of Homo sapiens, nearly 84 square kilometers of desert in the northeast of the Sahara Desert have been transformed into green-covered farmland, plantations, and saltwater lakes.

The total area of ​​the Sahara Desert is only about 900 million square kilometers.

In other words, at this time, nearly one-tenth of the Sahara Desert has been transformed.

Due to the very tense relationship between Homo sapiens and the Europa Commonwealth and the Freedom Commonwealth, the two sides are not in contact with each other now, and even civil aviation and commercial transportation are almost interrupted.

But in North Africa, French power remained entrenched.

For example, the Republic of Abdwald in the west of Numidia, although they have been in love with France for more than 200 years, they turned against each other in the end.

But they still did not refuse some cooperation from France.

On the border between the Abdwadh Republic and Numidia.

A climate and environmental research team in France is collecting various data at this time.

Dr. Lena, who was wrapped in a headscarf, put down the binoculars on a 5-story building in a small town: "Have they dug the canal here?"

Major Patton of the Foreign Legion spread his hands: "It was dug here two weeks ago."

Dr. Lena looked at the historical monitoring records of the local weather, and a trace of worry appeared on his face: "The air humidity here has increased by 5.6-7.2%, and this number may continue to increase in the future."

"Isn't this a good thing?" Barton, who didn't know much about environmental science, didn't think there was a problem.

"Everything has two sides." Dr. Lena said casually, but did not continue to explain, but asked: "Mr. Major, what is the status of our application for visas to Numidia and Suez?"

Barton shrugged: "It didn't pass, the other party refused our people to enter, unless the whole family went to work together, it would be difficult to pass."

Hearing this, Dr. Lena showed a hint of disappointment on his face.

Although she is a top environmental scientist in the Europa region, this status does not qualify Homo sapiens to make an exception for Homo sapiens.

Dr. Lena, who has not obtained a visa, can only analyze the climate change in the Sahara Desert through satellite detection data.

And her team, through the detection data of a large number of weather satellites, has discovered some climate changes in the northeastern Sahara and the sand kingdom in West Asia.

This climate change is somewhat different from previous climate changes.

According to the research of Dr. Lena's team, the climate change in the northeastern part of the Sahara Desert this time is extremely rapid, and the scope of influence is still very large.

The reason for this situation has a lot to do with Homo sapiens' large-scale use of seawater to irrigate farmland.

Many people who have studied the Sahara Desert and the West Asian Desert know that the reason for the formation of this desert area is the subtropical high pressure, in addition to factors such as terrain, location, and ocean currents.

The subtropical high pressure prevails all year round with downdraft, which is not conducive to precipitation. In addition, the seasonal northeast trade wind blows from the inland of West Asia and Central Asia. Naturally, it does not carry much water vapor, and it is also unable to form rainfall.

But at this time, Homo sapiens' Sahara "greening" project is not the same.

A large number of saltwater canals, artificial lakes, canals, and large-scale irrigation have greatly increased the evaporation of water vapor in the northeastern Sahara Desert.

Some people may say, isn't it just some canals, artificial rivers, and paddy fields, how much can this increase the evaporation?

The Red Sea Province in the Suez area is next to the Red Sea, and it is still deserted.

However, Dr. Lena's research team found that at this time, the evaporation of water in the northeastern part of the Sahara Desert was almost 5 to 6 times the total evaporation of the Red Sea.

It's just horrific.

There are three main reasons why such a large amount of water vapor is produced, the water body is vast in area, the temperature is high, and the water body is shallow in depth.

The area of ​​the Red Sea is only 43.8 square kilometers, while the artificial water bodies and seawater irrigated farmland transformed by Homo Sapiens in North Africa have an area of ​​88.7 square kilometers, almost twice the area of ​​the Red Sea.

However, if the water body is too shallow, coupled with sufficient solar energy, the temperature of the water body will be easily raised, thereby increasing the evaporation efficiency of the water body.

No matter how strong the subtropical high pressure is, there is no way to offset the water vapor of 5-6 Red Sea evaporation.

Moreover, the Homo sapiens company continues to expand the plantations and paddy fields in North Africa, and digs canals to the Chad and Meroy areas.

In the future, the entire eastern Sahara region may be dyed green, and the evaporation rate will further skyrocket by then.

The central area of ​​the Sahara Desert will definitely be affected, the climate will become wetter, and it is very possible that the desert will become a grassland.

Perhaps this is a good thing for the Sahara region, but not necessarily a good thing for other regions.

The reason why Dr. Lena is worried about this is because she knows that the global climate is a whole. When there is a sudden change in the climate in a certain area, it will inevitably affect other areas. This is something that cannot be avoided.

Homo sapiens' transformation of the Sahara Desert is almost a permanent transformation, which will lead to drastic changes in the climate model of the entire Sahara Desert region.

This drastic change in climate has a great impact on agricultural production.

The climate requirements of agricultural production, the first element is stability, and the second is suitable.

If the climate is unstable, there will be a sudden torrential rain this year, continuous drought next year, and another April snowstorm the year after, then open-air agriculture will definitely be hit hard.

Dr. Lena returns to temporary accommodation.

A local meteorological researcher held a document and greeted Dr. Lena: "Dr. Lena, we got an invitation letter for the African Climate Forum, which will be held in Cairo."

"But I don't have a visa." Dr. Lena said helplessly.

"Doctor, you are too rigid."

Dr. Lena hurriedly asked, "Robin Hood, what can you do?"

"Why don't you apply for Abd's citizenship?" Robin Hood reminded with winks.

"What?"

"You should have a way."

Dr. Lena thought for a while, and finally nodded. She quickly called her embassy and contacted several old acquaintances in France.

Soon her idea was approved, and she promised to help run the operation, allowing Abd to quickly naturalize Abd. After attending the African Climate Forum, she can directly apply for restoration of citizenship.

Three days later, Dr. Lena, Robin Hood and others flew to Cairo to attend the African Climate Forum.

Thank you for your support (ω｀), please subscribe, collect, monthly and recommendation tickets.