Ramadevara Betta Hill
Context: Ramadevara Betta Hill, located in Ramanagara, Karnataka, has seen its fourth consecutive year of successful breeding for the endangered long-billed vultures
About Ramadevara Betta Vulture Sanctuary
- Ramadevarabetta Vulture Sanctuary, located in Ramanagara, Karnataka,
- It is India’s first and only vulture sanctuary.
- It was established in 2012 to protect endangered vulture species.
- Vulture Species in the Sanctuary
- Out of nine vulture species found in India, three species are seen here:
- Long-billed Vulture (Indian vulture) – Endangered
- Egyptian Vulture – Critically Endangered
- White-backed Vulture – Endangered
About Ramadevara Betta Hill
- Ramadevara Betta is a famous hill in Ramanagara, Karnataka.
- Also known as: Ramagiri.
- Historical Importance
- Ancient Heritage: The hill has a long history, dating back to the Vijayanagara Empire and Kempegowda’s rule.
- Strategic Location: It served as a military and defense point due to its high vantage position.
- Architectural Wonders
- Ancient Temples: The hill has temples dedicated to Lord Rama and Lakshmana.
- Traditional South Indian Architecture: The temples feature intricate carvings and stone sculptures.
Impact of GHGs on Satellites
Context: Recently a study published in Nature Sustainability indicates that high GHG levels could reduce the number of satellites that can safely orbit Earth by up to 66% by 2100.
- Atmospheric modeling was used to estimate changes in Earth’s orbital capacity under different emission scenarios.
Effect of Greenhouse Gases on the Atmosphere
- GHG emissions cause cooling and contraction of the mesosphere (50-85 km) and thermosphere (85-600 km), leading to a shrinking upper atmosphere.
- Reason: Increased infrared radiation is reflected into space, reducing atmospheric drag.
- Effects:
- Lower atmospheric density: Space debris remains in orbit longer.
- Longer satellite lifespans: But higher risks of space congestion and collisions.
- Slower satellite deorbiting : Satellites take longer to re-enter the atmosphere and burn up.
Implications for Space Sustainability
- Reduced deorbiting rates: Satellites remain in orbit longer, increasing space congestion and collision risks.
- The study highlights the urgent need for better orbital debris management and mitigation strategies.
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