UPSC Notes

Climate Change Impacts in the Himalayas

PYQs

10

Articles

2

Momentum

27

Phase IFoundation

Background

Overview

The Himalayas are vital for India's water security, ecological balance, and disaster management. Understanding climate change impacts in this region is crucial for formulating effective environmental policies, disaster preparedness strategies, and fostering regional cooperation, directly relevant to GS1 (Geography) and GS3 (Environment, Disaster Management).

The Himalayan region, a critical global biodiversity hotspot and source of major river systems, is exceptionally vulnerable to climate change, manifesting in accelerated glacier melt, altered precipitation patterns, and an increased frequency of extreme weather events. These changes have profound implications for regional ecosystems, water security, and human livelihoods across South Asia.

Phase IIStatic core

Facts & tables

Key facts

Glacier Retreat

Himalayan glaciers are melting at an alarming rate, contributing to sea-level rise and impacting water availability for downstream populations.

GLOFs Risk

Increased formation and expansion of glacial lakes heighten the risk of Glacial Lake Outburst Floods, posing significant threats to infrastructure and communities.

Monsoon Variability

Climate change is altering the intensity and predictability of the South Asian monsoon, leading to more frequent droughts and intense rainfall events.

Biodiversity Loss

Unique Himalayan flora and fauna are threatened by habitat shifts and degradation due to rising temperatures and changing climatic zones.

Warming Rate

0.3°C per decade in high mountains of Asia, nearly twice the global average.

Ice-Loss Rates

Doubled across Hindu Kush Himalaya (HKH) since 2000.

Mechanisms

Rising temperatures shift snow accumulation/melt balance, form supraglacial lakes/moulins, lubricate glaciers, melt permafrost.

Consequences

Glacier lake outburst floods (GLOFs), rock avalanches, landslides, debris flows, flash floods, water scarcity.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaClimate Change & Conventions
Conceptual areaBiogeography & Ecosystems
Conceptual areaEnvironmental Law & Policy
Conceptual areaEnvironment & Ecology

Reference table

Institutions & roles

BodyRole
Intergovernmental Panel on Climate Change (IPCC)Warned
World Meteorological Organization (WMO)Warned
International Centre for Integrated Mountain Development (ICIMOD)Reports
National Disaster Management Authority (NDMA)Coordinates disaster response and mitigation efforts related to himalayan hazards
Ministry of Environment, Forest and Climate Change (MoEFCC)Formulates policies for climate change adaptation and mitigation in the himalayan region
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Conceptual understanding

Quick revision

  • Himalayan glaciers melting rapidly, impacting river flows.
  • Increased risk of Glacial Lake Outburst Floods (GLOFs).
  • Changes in monsoon patterns affecting agriculture and water.
  • Threat to unique Himalayan biodiversity.
  • Requires regional cooperation for adaptation and mitigation.

High-confidence PYQs

Topic timeline

Climate Change & ConventionsBiogeography & EcosystemsEnvironmental Law & PolicyEnvironment & Ecology

Nepal’s agony, the Himalayan warning to India

31 Aug 2026 · The Himalayas face severe climate change impacts like glacier melt, GLOFs, and altered monsoons, threatening water security, biodiversity, and increasing disaster risks for India and its neighbors.

Read article

Warming Himalayas demand a rethink on development

13 Oct 2026 · Rapid warming in the Himalayas causes glacier retreat and permafrost thaw, leading to increased natural disasters like floods and landslides, threatening water security and livelihoods in the region.

Read article

Related topics

Practice writing on this topic

UPSC has asked 10 linked questions on Climate Change Impacts in the Himalayas in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Climate Change Impacts in the Himalayas

Practice official previous year questions asked by UPSC related to this concept.

Consider the following statements with reference to India's response to climate change : I. India's Long-Term Low Emission Development Strategy (LT-LEDS) is...

2026·Environment & Ecology
Solve

Which organization has enacted the Nature Restoration Law (NRL) to tackle climate change and biodiversity loss?

2025·Environment & Ecology
Solve

Consider the following statements: Statement I: At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the “Declaration ...

2025·Environment & Ecology
Solve

Consider the following statements: Statement I: Article 6 of the Paris Agreement on climate change is frequently discussed in global discussions on sustaina...

2025·Environment & Ecology
Solve

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. State...

2023·Environment & Ecology
Solve

With reference to ‘Global Climate Change Alliance’, which of the following statements is/are correct? 1. It is an initiative of the European Union. 2. It ...

2017·Environment & Ecology
Solve

With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct? 1. The Agreement was signed by all...

2016·Environment & Ecology
Solve

Which one of the following lakes of West Africa has become dry and turned into a desert?

2022·Environment & Ecology
Solve

Which of the following best describes the aim of ‘Green India Mission’ of the Government of India? 1. Incorporating environment benefits and costs into the ...

2016·Environment & Ecology
Solve

One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and...

2024·Environment & Ecology
Solve

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