Quick Answer: How Does Cloud Seeding Affect The Environment?

How does cloud seeding affect the water cycle?

Cloud seeding is the process where substances like dry ice and silver iodide are put into clouds in an attempt to make precipitation fall.

Cloud seeding has also been used to dissipate fog and weaken some storms..

Who invented cloud seeding?

Vincent J. SchaeferVincent J. Schaefer, a self-taught chemist who invented cloud “seeding” and created the first artificially induced snow and rainfall, died on Sunday at a hospital in Schenectady, N.Y. He was 87 and lived in Rotterdam, N.Y. Mr.

How successful is cloud seeding?

Other recent studies have used computer modeling to estimate the increase in snowfall from cloud seeding. A 2014 study across two Wyoming mountain ranges found that cloud seeding could increase snowfall by 5 to 15 percent — but only when the right conditions for seeding were met, or during 30 percent of snow events.

Is artificial rain harmful?

With an NFPA 704 health hazard rating of 2, silver iodide can cause temporary incapacitation or possible residual injury to humans and other mammals with intense or chronic exposure. However, there have been several detailed ecological studies that showed negligible environmental and health impacts.

How long does cloud seeding take?

Seeding effects can range from almost immediate to up to 30 minutes depending on the seeding delivery method (direct injection at cloud top, or base seeding – releasing seeding agent in the updraft below the cloud base).

Does rain reduce air pollution?

As a raindrop falls through the atmosphere, it can attract tens to hundreds of tiny aerosol particles to its surface before hitting the ground. The process by which droplets and aerosols attract is coagulation, a natural phenomenon that can act to clear the air of pollutants like soot, sulfates, and organic particles.

Why don’t they cloud seed in Australia?

In Australia, these are usually orthographic clouds – formed by mountainous terrain forcing air upwards. So you need mountains to make it rain as well. And those mountains must be located in a pristine atmosphere, so cloud seeding to put out bushfires is also not an option.

What are the effects of cloud seeding on the environment?

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.

Can cloud seeding be used to reduce rain?

The use of cloud seeding is very controversial. Some people say it isn’t worth the resources, because even the most dramatic rainfall increases only amount to 5-20%. If it is done incorrectly, it can even reduce the amount of rain that might have fallen by dissipating clouds.

What is cloud seeding used for?

Cloud seeding is a weather modification technique that improves a cloud’s ability to produce rain or snow by artificially adding condensation nuclei to the atmosphere, providing a base for for snowflakes or raindrops to form.

Is cloud seeding expensive?

With our fast growing population, the UAE is under pressure to come up with cost-effective alternatives. Now, desalinating 1 cubic metre of water from the sea costs about $60, whereas the same amount of water extracted through cloud seeding costs just $1.

Is silver iodide toxic?

Under the guidelines of the Clean Water Act by the EPA, silver iodide is considered a hazardous substance, a priority pollutant, and as a toxic pollutant. … If the toxicity manifests in pollution and illnesses, the effects may not be reversible.

Can artificial rain be made?

For the uninitiated, cloud seeding or weather modification is an artificial way to induce moisture in the clouds so as to cause a rainfall. In this process, either silver iodide or dry ice is dumped onto the clouds by using an aircraft or an artillery gun which leads to a rain shower.

What are the disadvantages of cloud seeding?

Cons of Cloud SeedingRequires the use of Potentially Harmful Chemicals. Cloud seeding requires the use of chemicals, some of which are potentially harmful to the natural environment. … It is Not Foolproof. … It is expensive. … Poses Weather Problems. … Dependence on atmospheric conditions. … Unknown impact of long-term exposure to cloud seeding.

What chemicals are used in cloud seeding?

The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide) and Liquid propane.