NASA researchers utilized satellite imagery to reveal a net increase in global mangrove forests between 2000 and 2020
GS3Economy · S&T · Environment · Security· Biodiversity & conservation· Prelims + Mains·
Why in news
NASA researchers utilized satellite imagery to reveal a net increase in global mangrove forests between 2000 and 2020, highlighting the success of restoration efforts against the threat of sea-level rise.
Background
The study analyzed nearly two decades of Earth observation data to track mangrove health. While restoration initiatives have reversed decades of decline, accelerating sea-level rise remains a critical threat to these coastal ecosystems.
Facts for Prelims
- EnvironmentMangroves: Halophytic trees/shrubs that grow in coastal saline/brackish water.
- S&TNASA uses Earth observation satellites to monitor global ecosystem health and resilience.
- FactGlobal mangrove forests showed a net increase in area between the years 2000 and 2020.
For Mains
Q. Discuss the role of coastal ecosystems like mangroves in climate change mitigation and the challenges posed by accelerating sea-level rise to their long-term survival.
Dimensions to cover in your answer
- Ecological buffer: Mangroves act as natural barriers against storm surges and coastal erosion.
- Adaptation bottleneck: Rate of sea-level rise may exceed the natural inland migration capacity of mangrove species.
- Sediment dynamics: Importance of sediment management in maintaining the elevation of coastal wetlands against submergence.
Keywords: Climate Resilience · Coastal Ecology · Carbon Sequestration · Blue Carbon · Anthropogenic Restoration
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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.