The basic idea is not absurd, being based on sound physics and advocated by conservative physicist Edward Teller during the Reagan administration as a solution to global warming. The broader category of geo engineering also deserves a full research program, especially the potential to increase CO2 absorption by ocean fertilization. Notably, a side benefit could be to make the seas more productive.
Wrong, wrong, wrong!
What is the “CORRECT” temperature for planet Earth?
What is the “CORRECT” amount of CO2 in the atmosphere for planet Earth?
This is INSANE ARROGANCE of puny little men who think they are the Masters of the Universe and think they know what the CORRECT answers to those questions are. GOOD GOD! Tower of Babel level arrogance on steroids.