Prelims – General issues on Environmental ecology, Bio-diversity and Climate Change.
Mains – General Studies-III (Conservation, environmental pollution and degradation, environmental impact assessment).
Why in news?
NASA scientists have recently stated that they can detect early signs of volcanic eruptions by observing the changing colors of leaves from trees.
India has active volcanoes like Barren Island in Andaman & Nicobar and this technology could enhance India's disaster management capabilities.
Significance of the discovery
Reference
Indian express | Satellite Tree Monitoring for Volcano Prediction