Keywords: global warming, sunlight shield equipment, cost, flat balloons, attitude control, mirror function, sunlight reflection, atmospheric temperature decrease
How to effectively protect the earth from global warming by means of advanced sunlight shield equipment
This paper proposes a set of Advanced Sunlight Shield Equipment (ASSE) composed of a flat balloon with an attitude control function. Balloon's surface has a mirror function. When ASSE is deployed in the stratosphere, its surface reflects sunlight to space effectively. The gross area of many sets of ASSE amounts to about 2.6 × 106 square kilometre, and when they are deployed, the global average atmospheric temperature value decreases by about 0.7 degrees centigrade. A total cost of ASSE for the average atmospheric temperature decrease is roughly estimated, and it is 1 to 30 × 1010 euro/year.