Once Ruined, Old Grasslands Never Regrow the Same Way
Why in news: A new study in the Proceedings of the National Academy of Sciences finds that ancient grasslands, once destroyed, almost never return to their original state — even a century later.
For Mains: Use in GS1 (biomes, distribution of resources) and GS3 (conservation) answers to argue that 'protect first' beats 'restore later' for grasslands — and to critique afforestation drives that plant trees on native grassland.