April is a very good time in Beijing, just after the end of the winter large-scale warming, the climate of the capital began to gradually improve, and the phenomenon of haze began to gradually improve.

In winter, because of the reduction of convective air, it is difficult to blow away the haze, and once these polluted gases accumulate, they will produce aerogels in the air, which brings the effect that the haze phenomenon is getting heavier and heavier.

Surveys have shown that the smog in Beijing is mainly caused by emissions from heavy industries in her province.

The terrain of this part of North China is actually a plain, and to the north, there are mountains to block it, and this area can just form a stable pressure layer, so the haze is not easy to spread, and the gas emitted by the factory will accumulate here.

And the car exhaust and the warm in winter are actually another big reason.

The pollution is very serious, coupled with the exhaust emissions of 4 million cars and the heating of millions of residents, such pollution is very terrible, and if all kinds of reasons are superimposed, it will cause every winter, the sky over the capital is always easy to form a haze that will not disperse.

Hearing that the government is planning to introduce natural gas, increase natural gas power generation, reduce coal-fired power generation, and is ready to limit the production and emissions of surrounding heavy polluting enterprises in winter, so as to reduce the pollution of the capital, Lin Quan is very suspicious of the consequences of this, after all, for economic development, energy conservation and emission reduction is a very important thing to affect economic activity, and natural gas, he is even more suspicious, China's main fuel has always been coal, although the consumption of oil and natural gas is also a lot, but far less than coal, and natural gas storage in China is relatively small, if it is really used, I don't know if it is enough。

However, it is already April at this time, so the problem of vacant space pollution is actually not very serious, although the air still does not look so clean, but compared to winter, it is still much better.

"Let's find a hotel to stay in!"

Because the time of the plane is not very long, Lin Quan and Taylor are in good spirits at this time.

"Didn't you say you'd take me to the Great Wall? Why don't you just go now?"

Taylor said she didn't understand, her time was running out, and she had a lot of places to go!

Hukou Waterfall, Huashan, Songshan, Shaolin Temple, Huangshan, Zhangjiajie, Jiuzhaigou, Wolong Giant Panda Sanctuary, this is the itinerary she has planned before, to complete this trip, it will take at least a month, otherwise it will become a sightseeing flower.

"My little sister, don't you look at the suitcase in our hand, do you mean that you are going to take your suitcase to visit the Badaling Great Wall?"

Lin Quan couldn't smile bitterly, he could understand Taylor's urgency, but no matter how anxious he was, he couldn't prioritize it!

At this time, it is obvious that you have to find a place to put down the equipment in your hand first!

How can anyone run around with such a big suitcase!

Besides, if I go, what if I come back too late and can't find the hotel?

Lin Quan doesn't care about himself, he can just find a small hotel to deal with it for one night, but Taylor can't!

She is a foreigner, and foreigners can only live in hotels with at least three-star foreign-related business that have been registered, and there are not many such hotels, at least not as many as those places with small hotel signboards on the streets!

"Well, well, but you promised me to accompany me to visit the Great Wall, don't forget it!"

Taylor thought about it for a while and found that what Lin Quan said made sense, so she compromised, but she ran Lin Quan forgot the agreement with herself, and she didn't forget to remind Lin Quan at this time.

"Got it, my eldest sister, I've written it all in the memo on my phone, let's go, otherwise the ferry will be gone!"

There is a bus inside the airport, which is a kind of shuttle bus, which takes them from the plane to the airport, so they don't have to waste time walking slowly.

Capital International Airport is very busy, and it is probably one of the three busiest airports in China!

Among the four first-tier cities in China, there are three places with the busiest airports in the country, the Capital International Airport in Beijing, the Pudong International Airport in the magic capital, and the Baiyun International Airport in Guangzhou.

China's aviation industry is not very developed compared to other countries such as the United States and Western European countries, and this is mainly due to several reasons.

First, the reason why the aviation industry in the United States is developed is mainly because of their topography, there is a long Rocky Mountain range in the center of the country, which divides the whole country into two regions, east and west, and the existence of this mountain, so that the surrounding places are vast and sparsely populated, if you build a railway in such a place, it is obviously not too cost-effective business, because the passenger flow will be limited, the railway passenger flow is mainly based on the short-distance passenger flow within 500 kilometers, and this distance is also related to the speed of the train, the higher the speed, the larger the range, and according to the train speed in North AmericaThis distance is only about 200-300 kilometers, and if you exceed this distance, it will be more convenient for people to take a plane, after all, the plane is much faster!

The central states of North America do not have many people, which makes short-distance travel more popular on the vertical transportation routes of the east and west coasts, but not on the east-west transportation routes across the North American continent.

And the airplane took its place and successfully developed.

The railroads in the United States are very old, slow, and extremely expensive, so the market competitiveness is very low, and if there is a large-scale infrastructure construction in the future, their railroads will have to be eliminated sooner or later.

The situation in Europe is slightly different from that of the United States, although there are also mountain ranges, the Alps that separate Western Europe from Switzerland, Italy and many countries in the Balkans, which has become a major problem for European rail transportation, and they have another problem that they have to solve, that is, coordination and cooperation between countries.

The EU has different places in the Schengen area and those that are not, and the transportation cooperation in the Schengen area is relatively large, not only in road transportation, but also on the railway, but it is not as convenient as in its own country.

However, there are a large number of countries in Eastern Europe that are not Schengen countries, so it is very difficult to completely open up transportation, which has a greater impact on railways, but in terms of flights, there is almost no impact.