Anantam IASPost · 17 April 2026

Famine and Food Security: Causes, History and UPSC Notes (UPSC Environment)

Study Notes · Environment & Ecology · General Studies · GS III

UPSC guide to famines: causes, historical context, food security in India, climate change, PDS, Essential Commodities Act and global famine risks.

A famine is a widespread scarcity of food caused by multiple factors including crop failure, population imbalance, government policy failure or conflict. Famines have been devastating humanitarian disasters throughout history, often accompanied by malnutrition, starvation, epidemic disease and increased mortality. Although famine deaths have fallen sharply since the 1970s globally, some regions continue to experience extreme food insecurity. Climate change, conflict and supply chain disruption are reshaping famine risk in the 21st century. For UPSC aspirants, famine is a critical GS Paper III theme on food security, disaster management and climate change.

What is famine

Famine is defined by the Integrated Food Security Phase Classification (IPC) when:

Famine is the most severe category in the IPC framework and requires a formal declaration.

Historical context

Modern famine hotspots

Sub-Saharan Africa continues to experience extreme cases of famine. As of 2024, the UN warned that over 20 million people are at risk across:

Since 2010, Africa has been the most affected continent. Agricultural conditions have been fluctuating due to weather variability, and conflict affects food distribution. Most aid programmes now direct support towards Africa.

Future accentuating causes

India's food security framework

Green Revolution and its aftermath

As Norman Borlaug, the father of the Green Revolution, said, this planet can support about 4 billion people on natural productivity alone. Modern science enabled feeding 8 billion. The Green Revolution increased food production but led to environmental costs: depleted groundwater, soil degradation, loss of crop diversity.

Food wastage

According to FAO, 30 percent of the food produced never reaches stomachs because of high post-harvest losses and consumer waste. Reducing waste is as critical as producing more.

Public Distribution System (PDS)

India has the largest food subsidy programme in the world. The PM Garib Kalyan Anna Yojana (PMGKAY) provides free rice and wheat to over 81 crore people since 2020, extended multiple times. The National Food Security Act 2013 forms the legal basis.

Buffer stock

Food Corporation of India (FCI) maintains large buffer stocks of rice and wheat. Buffer norms protect against price shocks and sudden scarcity.

Essential Commodities Act

The Essential Commodities Act 1955, as amended in 2020, allows regulation of agricultural commodities in situations such as war, famine, extraordinary price rise and natural calamity.

Minimum Support Price (MSP)

MSP for 23 crops provides price support to farmers, ensuring production stability.

Famine prevention strategies

Agricultural improvement

Market access

Government programmes

Relief

Amartya Sen's perspective

Economist Amartya Sen, in his seminal work "Poverty and Famines" (1981), argued that famines are rarely caused by absolute lack of food but by failures of entitlement. People go hungry because they cannot afford to buy food even when food exists. This insight shifted global famine policy from production to access, purchasing power and democratic accountability. India, Sen argued, has not had a famine since independence partly because a free press and electoral democracy forced government response.

Climate change and future food security

Latest developments (2024-26)

UPSC Relevance

Prelims focus

Mains focus (GS III)

Typical question framings evaluate famine prevention strategies, the Green Revolution's environmental cost, the role of free press and democracy, and climate-induced food security challenges. Strong answers integrate Amartya Sen, specific famines, NFSA provisions, climate science and international frameworks.

Linkages

Famine connects to SDG 1 (no poverty), SDG 2 (zero hunger), SDG 13 (climate action), India's updated NDCs after COP29, UNCCD commitments, the Paris Agreement, the Sendai Framework, the Global Biofuels Alliance and the International Year of Millets 2023.