Chapter 1152: Give Him What He Deserves

Chang Haonan's thinking is basically the same as in the past——

It’s good to have support from higher-ups.

But if you can support your superiors in turn and push the other party in the direction you want, that would be obviously better.

In fact, many people understand this truth.

But understanding is one thing, implementing it is another.

If you really want to do this, on the one hand it is very difficult.

Not only must you have excellent skills, but you must also have sufficient insight. Otherwise, if you spend a lot of effort and finally find that your efforts are in the wrong direction, all your efforts will be in vain.

On the other hand, the risks are also high.

If something goes wrong, it is likely to be self-defeating and lead to loss of trust from superiors.

Therefore, after hearing Chang Haonan's thoughts, Ding Zhongli frowned slightly:

"Although it is true to think so, but in operation... I am afraid it will be difficult to implement."

Then he further explained:

“At present, the most accurate and common means of detecting the content of greenhouse gases in the atmosphere is definitely on-site or aerial measurement. However, due to various non-technical factors, it is difficult to carry out in many locations, so the spatial coverage is limited and can only be applied. Observe locally.”

"If you really want to conduct sustained and stable high-precision observations over a large area, or even on a global scale, you can only consider satellite remote sensing... For example, during the third assessment of the IPCC three years ago, the United States and Japan jointly issued They passed data on carbon dioxide emissions from a coal mine in Shanxi Province, my country, and alleged that the emissions per unit output of this coal mine exceeded the world average by seven times.”

Speaking of this, Ding Zhongli also had a somewhat indignant expression:

"Because the other party was measuring space remote sensing, we couldn't deal with it with sovereignty issues. Although we urgently organized an international joint inspection to clarify, we were still very passive for a time..."

This completely involves Chang Haonan’s knowledge blind spot:

"Is there still this matter?"

"Too many..."

Ding Zhongli shook his head helplessly

"It is a pity that our country does not have enough technology accumulation in this area, and space launch resources are very tight. It is impossible to launch a satellite specifically to detect carbon dioxide concentration..."

As a researcher majoring in geology and geophysics, he is used to living a hard life.

Although this industry is said to be a science, the demand for resource investment is actually no lower than that of large-scale projects.

If you really want to conduct high-level research, you will need to equip yourself with supercomputers, remote sensing satellite clusters, ground observation networks, and even strategic reconnaissance aircraft.

Given China's conditions at the beginning of the 21st century, it is indeed impossible to be so extravagant in a field that neither produces direct benefits nor involves national defense and security.

In fact, considering that it is already August 2004, and the IPCC fourth assessment plan is due to end in 2006, even if the money is in place, China will most likely not have time to launch a satellite.

Therefore, Chang Haonan initially considered another path.

Use foreign data to slap themselves in the face.

"We definitely can't launch satellites ourselves."

After thinking for a moment, he waved his hand and replied:

"Let's not talk about the issues of time and money... Even if it is really called up, others can turn around and say that our data is false... Although we will not be passive by then, we will just go back to talking about it. The state of the words doesn’t mean much..."

"But logically speaking, greenhouse gas research should be shared around the world, and the remote sensing results of foreign atmospheric carbon dioxide satellites should be made public to the outside world?"

Faced with this seemingly incompetent question, Ding Zhongli was confused for a moment and couldn't figure out why Chang Haonan, who was very sharp just now, suddenly got confused now.

But he still replied:

"It's open to the public... but foreigners are not stupid. If they really want to falsify some key positions, they will definitely adjust the infrared spectrum released in advance to make the measurement data and calculation results match."

"As for the first-hand raw data of the satellite...then we are even less likely to have access to it."

After Chang Haonan heard this, he immediately asked:

“What if…it’s not just carbon dioxide?”

Ding Zhongli has been engaged in climate research for more than ten years, and he immediately realized what he meant:

"You mean methane...or nitrogen oxides?"

The so-called greenhouse gases are actually a large category, the most typical and famous of which is carbon dioxide.

But there are actually many other categories of gases.

If we look at the intensity of the greenhouse effect alone, carbon dioxide is not even a very strong one.

It's just that its absolute concentration is the highest, and it is a component that must be contained in normal atmosphere, so it is often taken out and beaten.

"It's methane."

Chang Haonan nodded:

"Although the methane content in the air is much less than that of carbon dioxide, it must also be considered that the former's ability to cause the greenhouse effect is more than 30 times that of the latter. Especially for those lay media and busy people, they cannot be expected to do anything. Knowing the difference between global warming potential and global warming impact is a good gimmick to use.”

Although he does not understand meteorology and geophysics, he happened to have studied several typical greenhouse gases from a chemical level for the AE1500 that is currently being developed.

The main sources of methane are actually the ruminant activity of mammals, artiodactyls, oil extraction and crop cultivation.

Except for the third one, none of these is China's strong point.

Ding Zhongli thought for a while:

"But there is no particularly mature technical means to determine the methane content through space remote sensing..."

"What I mean is that although the infrared hyperspectral satellite will provide data including methane, water vapor, and VOCs while detecting the carbon dioxide content, in general, in order to accurately obtain the concentration of CH4, it still requires the cooperation of short-wave infrared, thermal infrared and active laser radar... It is difficult to obtain accurate data by relying on a single spectral data, especially second-hand information provided by others."

However, Chang Haonan showed a somewhat strange expression at this time:

"Why do we need to obtain accurate data?"

"???"

Ding Zhongli's face was full of "Are you kidding me?"

"Carbon dioxide and methane have a common absorption feature at 1.6 microns in the infrared spectrum."

Chang Haonan's next sentence was a bit nonsensical.

But he continued soon:

"That is to say, we can choose the carbon dioxide concentration at the measurement point as a reference, use the forward radiation transmission model and the iterative update algorithm of the inversion process to invert the concentration of it and methane in the common absorption band."

"Technically speaking, if they deliberately lower the concentration of carbon dioxide in the data, and because they are caught off guard and do not correct other parameters related to methane, then the inverted methane concentration will be abnormally high... and considering that the actual concentration of carbon dioxide in the air is generally dozens or hundreds of times that of methane, the degree of abnormality will be very, very exaggerated."

"In other words, they either admit that they have falsified the public data, or admit that they have secretly emitted enough methane gas to destroy the earth..."