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According to a statement by China's State Council, the country has pledged to bring about 5.5 million square kilometers of land under the weather modification program by 2025. Much of this program involves the "cloud seeding" process. China claims to have developed this technology to increase agricultural productivity and prevent natural disasters such as droughts and floods. However, the impact of cloud seeding can be observed beyond China's borders, as it can disturb the normal monsoon in neighboring countries such as India, Myanmar, Vietnam, etc. This would have a negative impact on agriculture in these countries,
In Robock’s summary, the primary benefit of seeding is reducing global warming and many of its negative impacts. This may be so important to society that we may decide to do something radical like seeding. Risks or concerns like unwanted ecological changes, ozone depletion, continued ocean acidification, erratic changes in rainfall patterns, rapid warming if seeding were to be stopped abruptly, airplane effects, to name a few, may just not be bad enough to override the imperative to keep temperatures down.
The temperature and humidity of the air affects how long contrails last. When air is dry, contrails last just seconds or minutes. But when the air is humid, as was the case here, contrails can be long-lived and spread outward until they become difficult to distinguish from naturally occurring cirrus clouds. Satellites have observed clusters of contrails lasting as long as 14 hours, though most remain visible for four to six hours.
The long-lived, spreading contrails are of great interest to climate scientists because they reflect sunlight and trap infrared radiation. A contrail in an otherwise clear sky reduces the amount of solar radiation that reaches Earth’s surface, while increasing the amount of infrared radiation absorbed by the atmosphere (as do cirrus clouds).
These opposing effects make it difficult for scientists to pin down the effect contrails have on climate. “Overall, contrails create additional cirrus cloud cover,” noted Patrick Minnis, a senior scientist at NASA's Langley Research Center. “Current estimates indicate that contrails have a small warming effect, but the extent of the additional coverage and the amount of warming remain quite uncertain.”
The Evolution of a Contrail
RHS Consulting is a privately owned cloud seeding and weather modification company based in the U.S. and located in Nevada. Since its founding in 1999, RHS Consulting has used its combined expertise to provide weather modification and cloud seeding services to serve their clients. RHS offers cloud seeding program design, operation, research and evaluation services for ground based seeding projects as well as air based seeding projects. As a full service weather modification company we are able to manufacture and provide cloud seeding equipment as well as provide a variety of cloud seeding program options to meet the specific needs of and objectives of cloud seeding projects.
originally posted by: network dude
a reply to: The GUT
What worries me is that the chuckleheads who are certain the world will end in 10 years, can and will do drastic things, and think they are helping humanity. SRM, or Solar Radiation Management, which is the release of stratospheric particles to mimic the effects of a volcanic eruption, is a planned method, and at the altitudes it would be done at, wouldn't be seen from the ground. We might not know they even did it, until Terminator becomes a reality and some pinhead say's "My bad".
Mucking with mother nature is fodder for Hollywood movies, and not something I think we should be embracing for any reason.