Detailed Explanation:

Correct Answer: ✅ Option 1 — The Asian Development Bank (ADB)

The Asian Development Bank launched the Nature Solutions Finance Hub for Asia and the Pacific to mobilize investments for nature-based solutions (NbS). The initiative aims to address climate change, biodiversity loss, and ecosystem degradation by supporting projects that use natural systems for environmental resilience.

✅ Option 1 is Correct: ADB launched the Nature Solutions Finance Hub for Asia and the Pacific.

❌ Option 2 is Incorrect: The Asian Infrastructure Investment Bank did not launch this initiative.

❌ Option 3 is Incorrect: The New Development Bank is not associated with this hub.

❌ Option 4 is Incorrect: The International Bank for Reconstruction and Development did not launch the Nature Solutions Finance Hub.

Short Notes: Nature-Based Solutions (NbS)

• Nature-based Solutions use natural ecosystems to address environmental challenges.

• Examples include mangrove restoration, afforestation, wetland conservation, and watershed management.

• NbS help in climate mitigation, climate adaptation, and biodiversity conservation.

• The ADB Nature Solutions Finance Hub focuses on Asia-Pacific countries.

• It aims to mobilize public and private finance for environmental projects.

• Healthy ecosystems provide services such as carbon sequestration, flood control, and water purification.

• NbS are increasingly recognized as cost-effective climate solutions.