Climate change could shrink grazing area by half by 2100
Now composing the note.
1. At a Glance
- New climate-projection study finds 36–50% of world's "climatically suitable" grazing area could disappear by 2100, with Africa hit hardest [S1].
- 110–140 million pastoralists and 1.4–1.6 billion grazing animals are projected to be affected globally [S1].
- Losses geographically overlap with regions already facing poverty, hunger, gender inequality and political fragility — a compounding vulnerability story UPSC loves testing [S1].
- Sits at intersection of climate change, land degradation, pastoral livelihoods and global equity — relevant to GS-I (geography), GS-II (vulnerable groups), GS-III (climate/environment).
2. Why in the News
- A new study (reported in The Hindu Business Line, 15 February 2026 edition) used climate projections of temperature, rainfall and humidity through 2100 to model global grazing-suitability change [S1].
- Finding: Asia is a partial exception — grazing suitability is projected to expand inland, clustering in Kazakhstan and Iran, even as most of the world (especially Africa) contracts [S1].
3. Background & Evolution
- Rangelands/pastoral grazing systems have long been recognised as climate-vulnerable due to dependence on rainfall-driven forage and water availability [S1][S4].
- UNCCD (UN Convention to Combat Desertification) has flagged rangeland degradation as a global crisis; nearly half of world's rangelands already degraded due to climate change, population growth, land-use change and farmland expansion [S3].
- India-specific data point (presented to UNCCD at COP14, New Delhi, Sept 2019): India lost 31% (5.65 million hectares) of grassland area and 19% of common/shared grazing lands in a decade [S3].
- India hosted UNCCD COP14 in New Delhi, September 2019 [S3].
4. Core Static Facts
| Item | Detail |
|---|---|
| Projected global grazing-area loss by 2100 | 36–50% [S1] |
| Region worst affected | Africa [S1] |
| Region of projected expansion | Asia — inland, clustering in Kazakhstan & Iran [S1] |
| Pastoralists at risk | 110–140 million [S1] |
| Grazing animals at risk | 1.4–1.6 billion [S1] |
| India's rangeland extent | ~1.21 million sq km (Thar Desert to Himalayan meadows) [S3] |
| India's share of world livestock | ~20% [S3] |
| Share of Indian livestock in pastoral systems | ~77% [S3] |
| India's grassland loss (per decade, pre-2019) | 31% (5.65 mha) [S3] |
| India's common/grazing-land loss (per decade) | 19% [S3] |
| Nodal international convention | UNCCD (UN Convention to Combat Desertification) [S3] |
5. Multi-Dimensional Analysis
Environmental - Rangeland/grazing-land loss is driven by rising temperature, altered rainfall and humidity patterns — direct climate-change attribution [S1]. - Compounds with existing land degradation and desertification trends tracked by UNCCD [S3].
Social - Impacts overlap with countries already facing poverty, hunger and gender inequality, deepening existing vulnerability [S1]. - Pastoralist communities (nomadic/semi-nomadic herders) face displacement, loss of traditional livelihoods and rights-recognition gaps [S3].
Economic - Livestock-dependent economies (especially in Africa, and pastoral India) face direct income and food-security risk as forage-suitable land shrinks. - India's high dependence on pastoral livestock systems (77% of livestock) makes it structurally exposed despite Asia's projected "expansion" pockets [S3][S1].
Geopolitical/Strategic - Grazing-suitability gains projected in Kazakhstan and Iran could reshape regional pastoral migration and resource competition in Central/West Asia [S1]. - Cross-border pastoral mobility and land-use tensions may intensify as suitable zones shift.
Governance - UNCCD framework provides the multilateral mechanism for tracking and responding to rangeland/grazing-land degradation, but implementation and pastoralist-rights recognition remain weak [S3].
6. Recent Developments (last 12–18 months)
- February 2026: Study reported projecting 36–50% grazing-area loss by 2100, published/covered via The Hindu Business Line (15 Feb 2026) [S1].
- Continued reporting on rangelands' "silent demise," with degradation losses as high as 50% in some assessments [S3].
7. Prelims Hooks
- Global "climatically suitable" grazing area projected to shrink 36–50% by 2100 [S1].
- Region worst hit: Africa; region of projected inland expansion: Asia (Kazakhstan, Iran) [S1].
- Projected affected pastoralists: 110–140 million; affected grazing animals: 1.4–1.6 billion [S1].
- India's rangelands span ~1.21 million sq km [S3].
- India holds ~20% of world's livestock population [S3].
- ~77% of India's livestock is raised in pastoral (herded/common-land grazing) systems [S3].
- India lost 31% (5.65 million hectares) of grassland in a decade, per data submitted to UNCCD [S3].
- India lost 19% of common lands (shared grazing areas) in the same period [S3].
- India hosted UNCCD COP14 in New Delhi, September 2019 [S3].
- Nodal UN convention on land degradation/desertification: UNCCD (UN Convention to Combat Desertification) [S3].
- Almost half of world's rangelands are already degraded (climate change, population growth, land-use change, farmland expansion) [S3].
8. Mains Relevance
- GS-I: Geography — distribution of grazing lands/rangelands, climatic factors.
- GS-III: Environment — climate change impact on land use, desertification, conservation of resources.
- GS-II: Vulnerable sections — pastoralist communities' rights and livelihoods; international cooperation via UNCCD.
- Possible question stems: 1. "Discuss the projected impact of climate change on global grazing lands by 2100 and its implications for pastoral communities in Africa and Asia." (GS-I/III) 2. "Examine the status of India's rangelands and common grazing lands, and assess the adequacy of current policy frameworks in protecting pastoralist livelihoods." (GS-II/III) 3. "How does land degradation intersect with poverty, gender inequality and political fragility? Discuss with reference to UNCCD's findings on rangelands." (GS-II/III)
9. Related Topics to Study Next
- UNCCD & Land Degradation Neutrality (LDN) — the multilateral framework tracking desertification/rangeland loss.
- India's Grassland/Common Property Resources policy — legal and tenurial gaps for pastoralists.
- Desertification and Land Degradation Atlas of India (ISRO) — data source for domestic degradation trends.
- Nomadic and De-notified Tribes (NT/DNT) in India — social dimension of pastoral communities.
- Global Warming scenarios (IPCC AR6/RCP-SSP pathways) — underlying climate models used in such projections.
- Forest Rights Act & Grazing Rights — legal framework intersecting with common-land access.
- Sustainable Development Goal 15 (Life on Land) — global target framework for land degradation.
10. Common Errors / Trap Areas
- Don't confuse UNCCD (desertification/land degradation) with UNFCCC (climate change) or CBD (biodiversity) — three separate Rio Conventions.
- Don't assume grazing land is shrinking everywhere — the study explicitly projects expansion in parts of Asia (Kazakhstan, Iran), unlike Africa.
- India's grassland-loss figures (31% grassland, 19% common land) are decadal figures presented at COP14 (2019), not global 2100 projections — keep the two data sets distinct.
- Note the double range given in the study: 36–50% area loss vs 110–140 million pastoralists / 1.4–1.6 billion animals — these are different metrics, don't conflate them.
- UNCCD COP14 was hosted by India in New Delhi (2019), not Africa — a common location mix-up given Africa's centrality to desertification discourse.
11. Sources
- [S1] Today's Paper article, "Climate change could shrink grazing area by half by 2100" — The Hindu Business Line, 15 Feb 2026 — https://www.thehindu.com/todays-paper/2026-02-15/th_international/articleGNRFI6KTT-13512407.ece — (tier: 4)
- [S2] FAO Newsroom, "Rangelands and pastoralists are part of the answer" — https://www.fao.org/newsroom/detail/in-a-world-searching-for-solutions-to-the-interconnected-climate--biodiversity--and-land-degradation-crises--rangelands-and-pastoralists-are-part-of-the-answer--fao-animal-production-and-health-expert/en — (tier: 2)
- [S3] Down To Earth, "India lost 31% of grasslands in a decade" — https://www.downtoearth.org.in/agriculture/india-lost-31-of-grasslands-in-a-decade-66643 — (tier: 4)
- [S4] Down To Earth, "Rangelands are facing a 'silent demise', suffering losses as high as 50%" — https://www.downtoearth.org.in/agriculture/rangelands-are-facing-a-silent-demise-suffering-losses-as-high-as-50--96257 — (tier: 4)