Q. Could the reflectivity be reduced by settling sand or dust?
No my design
is self cleaning. A combination of the angle of the reflectors and wind
Q. Could the reflectors be covered by drifting sand?
A. Deserts contrary to popular belief are on average 70% gravel plains.
However the design is such that it will not be
affected by sandstorms. The panels are raised off the ground with a
A yearly inspection would be prudent to ensure all is in order.
Q. Why does this light escaping from the planet provide cooling?
A. This system is providing a mechanism to directly cool the Earth, the light energy is not trapped in the atmosphere, or reflected back down by the greenhouse gas layer in our atmosphere. An important note:- Infra red energy is what you would feel on your skin if you stood in front of a fire, it is Infra red energy that is reflected by the greenhouse gas layer back to the Earth. Or another way of looking at this is if visible light travels into through our atmosphere to Earth it can also go back into space again. There is some light energy is absorbed by dust particles in our atmosphere which in turns heats the atmosphere, however the reflectors provide a greater net cooling to the earth compared with soil, gravel, roads and crops for a given land area.
Q. If we did lower the temperature of the earth’s atmosphere with reflectors would that be seen as ‘job done’ by politicians?
A. I’m with Stern and his report. Something has to be done
sooner rather than later.
Somehow I doubt fuel cell cars will be the dominant mode of transport for a while yet, nor do I believe that massive investment in renewables, such as OTEC to supply a modest 40% of the worlds electrical power, will happen.
I also agree that by using reflectors, they may be seen as an answer, It should not be and certainly not by policy makers. My stance is that reflectors in the desert are a relatively cheap fix to buy us time.
We are talking about survival of society as we know it, I have a young son, and it is his generation onwards that is at greatest risk. It is so very possible we will have wars because of uninhabitable land, vast areas of flooding, massive forest fires, many many cities submerged by sea water, massive global slowdown in the economy, famine disease and inevitably many millions of people will die.
Q. Have you built a prototype?
it is known that this principle will work as areas of snow or ice reflect the
rays back into space.
A. No, well designed, post prototype panels would offer little wind resistance.
Q. What will this solution cost?
A. At this time it not
clear how many solar reflectors would be required to effect a 1 degree
cooling of the earth.
The estimate first year cost including installation for panels covering
the Sahara desert is
Q. The local people of the desert may object to these reflectors.
in the last 50 years the
A. I understand that in the last 50 years the
reflectors create adverse local weather effects?
Q. Can any desert be used for a site?
A. Yes the Mojave,
Kalahari, Arabian and the
A. Yes the Mojave, Kalahari, Arabian and the
Q. Why not use solar cells to collect energy instead of bouncing it back into space?
Hence the solar reflectors is a quick and cheap (relatively) way of counteracting the effect on global warming.
Q. Would aircraft be affected by flying through the reflected suns rays?
A.The effect would be very similar to flying over snow or even lots of cloud. Pilots may require sunglasses.
reflectors reduce the amount of CO2 produced?
reflectors are designed to directly cool the earth in a fast response
Q. Why not paint the roofs of buildings with reflective material instead?
practice this would be difficult to implement on private properties,
A method of
creating more and longer lasting clouds has been proposed as an
A. Extra clouds would have opposition from many in the public, including sun bathers, farmers and tourists.
How much land is
required to make a 1 degree cooling of the climate?
Q. How durable will the solar reflectors be?
A. Once in place they will need minimal maintenance. The reflective part is designed to last at least 20 years. The supporting structure is designed to last at least 100 years.
Q. Who is going to pay for the vast numbers of solar reflectors?
A. When it is seen that the cost of implementing the solar reflectors concept is many times cheaper than dealing with rising sea levels, crop failure or famine, governments and insurance companies of the world will need to lead the way in financing the project.
Q. What is happening to the solar energy that is striking the desert sand at the moment?
Some of the suns energy hitting the sand is converted into heat, directly heating the atmosphere and consequently melts ice caps etc. Some of the energy is radiated back into space as infrared energy (much the same as if you put your hand near a radiator you would feel the infrared heat.)
The remaining energy is bounced back into space. As per one of my slides, infrared energy is increasingly bounced back to the earth by blanket effect created by the extra CO2 in the atmosphere. See the slide CO2 attached.
Q. Have you any idea what is the ratio of the amount of solar reflection of the reflector when compared to desert sand e.g. “These bounce 10 X the energy back into space than compared to raw desert!”
Yes, the standard measurement tool for this is called Albedo, which is the measure of reflectivity.
Here is a chart that that I downloaded from the web:
My artificial reflectors are mimicking nature’s snow …