🔆Climate Footprint of Space Exploration📍Why in News?✅Space exploration is expanding rapidly, but its environmental impact from rocket emissions to satellite debris is largely ignored by global sustainability frameworks like the Paris Agreement. Urgent action is needed to address these growing concerns.
📍How are Space Activities Affecting the Environment? ✅Rocket Emissions: Rocket launches emit carbon dioxide (CO₂), black carbon, and water vapor. Black carbon absorbs sunlight 500 times more effectively than CO₂, exacerbating global warming.
✅Additionally, chlorine-based rocket propellants deplete the ozone layer, increasing ultraviolet (UV) exposure and disrupting atmospheric circulation.
✅Space Debris: As of September 2024, 19,590 satellites have been launched, with 13,230 still in orbit, of which 10,200 are operational.
✅The total mass of space objects exceeds 13,000 tonnes, contributing to pollution by Space Debris due to overcrowding in low Earth orbit (LEO).
✅Non-functional satellites and debris from collisions add to the growing problem of space junk and making space increasingly inaccessible.
✅This debris can disrupt radio waves and sensor accuracy, affecting critical systems for disaster tracking, climate monitoring, and communication.
✅Satellite Manufacturing: The production of satellites involves energy-intensive processes that contribute significantly to their carbon footprint, particularly through the use of metals and composites.
✅Satellite propulsion systems also release additional emissions during orbital adjustments. Furthermore, satellites burn up during re-entry, releasing metallic "satellite ash" that could alter atmospheric dynamics and harm the climate.
✅Emerging Threats: Space mining, although not yet operational, poses a potential threat to both Earth and space environments.
✅Increased industrial activity in orbit could intensify environmental impacts, compounding the challenges posed by current space operations.
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