Space tourism: Dangerous for the Earth?

Funky world about space tourism. Many ' space travel ' companies were established. Space shuttle (or space plane) is built and tested. The sprawling universe hotel is designed and prepared to build on space. Thousands of giants have registered to reserve space. However, if the space tourism industry is popular, how beneficial is it?

Geophysical Research Letters has published an article in which a group of scientists think that the space tourism industry is born, if it is responded, it will be detrimental to Earth's climate.

Why did the space tourism projects come back to make scientists at Aerospace Corporation in Los-Angeles (USA) feel insecure? According to them, when the spacecraft are " shuttle " along the sky, they will leave on the soot atmosphere, the product of burning up the fuel.

A lot of space tourism projects are being implemented.

The group of researchers led by Martin Ross has built a computer model of Earth pollution that the input data is based on information about the business plan of the space tourism industry. 2020, and assess the emissions generated from SpaceShip Two spacecraft of the Virgin Galactic Company.

That figure shows that, if each year launches a 1000- shuttle private space shuttle from their exhaust pipes, it will release an atmosphere of about 600 tons of soot. Strictly speaking, this number is much less than the number of planes and helicopters that enter the atmosphere every day.

However, the researchers said that the amount of soot coal is large but not too high so they can be brought down by the rain for a few days, at most a week. Meanwhile, the amount of soot that the space tourism ships emit is ready to challenge environmentalists because it stays on the stratosphere , 40 kilometers higher than the sea surface. Rain and snow come from a much lower height so they naturally exist on it for decades without anyone ' touching '.

The soot accumulated in the upper atmosphere, in the opinion of Ross and colleagues, can create a new ' greenhouse layer ' (similar to CO ₂ in lower air layers), without heat Escape from the planet's surface.

As a result, after just one year at the Earth's poles, it increased by about 0.2 degrees Celsius, and led to a real " global warming ", melting ice in the Arctic and Antarctic, rising sea levels. up and other disasters.

The researchers also hypothesized that the presence of that large amount of soot could cause an increase in ozone concentrations in the atmosphere at two poles , adding another cause to warming the Earth (but many homes). Science also acknowledges that it is still unclear whether ozone is related to planetary temperature rise.

However, the experts who designed and built spacecraft rejected these notions. Jeff Grison, general manager of XCOR Aerospace (USA), for example, is building ' shuttle ' ships that claim Ross's assessment of carbon dioxide emissions is completely inaccurate. The emissions data used in Ross's model are data of obsolete old ships, in fact, for modern ships, the amount of soot in the exhaust is so small that it cannot be measured in a way. exactly '.

On the Russian side, the country is also actively preparing for space travel and making its first trips to the billionaire American and South African, Professor Alexandr Bolonkin, member of the International Space Agency Council. Comment: ' The author's reviews of the above articles are not completely reliable. In any case, the amount of tiny solid particles from the spacecraft's rocket engines in travel flights is negligible compared to the emissions from modern, flying aircraft. on the stratosphere at a height of 9 to 11 kilometers, as well as thousands of tons of dust sprayed by volcanoes very high in the air (many times the main engine itself was not working, the airport had to close) and the amount carbon black is caused by powerful space rockets '.