A unique concept has emerged to counter the effects of climate change: using a space-based “umbrella.”
Detailed in a study by the University of Hawai’i and published in the scientific journal PNAS, the idea involves attaching a protective shield to an asteroid to shield Earth from the Sun’s Rays and Slow Climate Change.
From the University of Hawai’i’s Institute of Astronomy, Astronomer István Szapudi brings this idea of an asteroid-umbrella combination as a solution for climate change mitigation.
The proposed shield could intercept 1.7% of solar rays, potentially slowing down the planet’s warming process. Szapudi compares the concept to kite surfing, where solar radiation acts as the power driving the shield.
However, practical implementation faces significant challenges. Present-day rockets lack the power needed to transport a considerable shield into the solar system.
While the idea remains theoretical for now, future advancements might make it feasible in the coming decades. Szapudi foresees this as a starting point for further innovation.
He advises collaborations with asteroid experts to find suitable asteroids for testing and modification. Additionally, simulations are required to determine the fabrication, assembly, launch, and setup of the shield.
While the “asteroid umbrella” is one among several proposed geoengineering solutions, it highlights the need for creative approaches and multi-faceted strategies to address this global challenge effectively.
Other proposals, such as using moon dust or bubbles to deflect sunlight, emphasize the continuous exploration of innovative ideas. Yet, the practical implementation relies on technological advancement.