Seeding the atmosphere with aluminum oxide: A good idea?

Click For Summary
The discussion centers on the potential use of seeding the stratosphere with tiny particles, such as aluminum oxide, to combat global warming by altering the greenhouse gas layer. This method aims to enhance the emissivity and reflectivity of the atmosphere, allowing heat to be reradiated into space, thus reducing the greenhouse effect. However, concerns are raised about the environmental impact of introducing aluminum oxide into the biosphere, which could lead to unintended consequences. Critics argue that engineering solutions may not adequately address the root causes of environmental issues and could exacerbate existing problems. The conversation also touches on the limitations of expert recommendations in environmental care and suggests alternative solutions, such as painting roofs white, to mitigate global warming without the risks associated with aerosolized materials.
Ivan Seeking
Staff Emeritus
Science Advisor
Gold Member
Messages
8,213
Reaction score
2,651
Let's assume for the moment that beyond any doubt, global warming is real. Does this offer a viable solution to reduce global warming? Could this create another environmental disaster by loading the biosphere with aluminum oxide [apparently the preferred choice to be used in jet fuel].

A method is disclosed for reducing atmospheric warming due to the greenhouse effect resulting from a greenhouse gases layer. The method comprises the step of seeding the greenhouse gas layer with a quantity of tiny particles of materials characterized by wavelength-dependent emissivity or reflectivity, in that said materials have high emissivities in the visible and far infrared wavelength regions and low emissivity in the near infrared wavelength region. Such materials can include the class of materials known as Welsbach materials. The oxides of metal, e.g., aluminum oxide, are also suitable for the purpose. The greenhouse gases layer typically extends between about seven and thirteen kilometers above the Earth's surface. The seeding of the stratosphere occurs within this layer. The particles suspended in the stratosphere as a result of the seeding provide a mechanism for converting the blackbody radiation emitted by the Earth at near infrared wavelengths into radiation in the visible and far infrared wavelength so that this heat energy may be reradiated out into space, thereby reducing the global warming due to the greenhouse effect.

The details are clearly outlined in U.S.
Patent #5,003,186 at the following link.
http://patft.uspto.gov/netacgi/nph-...,003,186.WKU.&OS=PN/5,003,186&RS=PN/5,003,186
 
Chemistry news on Phys.org
General comment: if the life expectancies of house plants, tropical fish, terrrarium biota, and the like in the care of "the experts" were a matter of public record, I might be more inclined to take the ideas they propose seriously --- they ain't, I'm not, and my experience has been that life expectancies of plants and fish are inversely proportional to the number of "expert" recommendations implemented in care and feeding of same.

That said, the "engineering" approach to remedies for environmental concerns is not something I'd encourage --- "let's try this, and if it doesn't work, or screws things up worse, we should be able to fix it by adding that stuff over there."
 
Every movement has affect on something. The alteration of a nudge on a wheather pattern created by development over hundreds of years, heat realease do to fossil fuels, removal of trees and other natural growth, the wiping out of great portions of algae in the oceans have all set things in motion. Ever increasing human populations, and the insataible unconcious/conscious expression of greed that consumes the world. It cannot be fixed by a bandaid.
 
Well Aluminium has been associated with http://www.alzheimers.org.uk/Facts_about_dementia/Risk_factors/info_aluminium.htm . So the cure may be worse than the problem. Why not paint all the roofs white. That would help as well.
 
Last edited by a moderator:
What I know and please correct me: a macroscopic probe of raw sugar you can buy from the store can be modeled to be an almost perfect cube of a size of 0.7 up to 1 mm. Let's assume it was really pure, nothing else but a conglomerate of H12C22O11 molecules stacked one over another in layers with van de Waals (?) "forces" keeping them together in a macroscopic state at a temperature of let's say 20 degrees Celsius. Then I use 100 such tiny pieces to throw them in 20 deg water. I stir the...

Similar threads

  • · Replies 33 ·
2
Replies
33
Views
24K
Replies
16
Views
5K
Replies
9
Views
5K
  • · Replies 34 ·
2
Replies
34
Views
8K
  • · Replies 5 ·
Replies
5
Views
3K
Replies
28
Views
28K
  • · Replies 15 ·
Replies
15
Views
19K
  • · Replies 9 ·
Replies
9
Views
28K
  • · Replies 10 ·
Replies
10
Views
3K