Climate Change Negatively Impacts Milk Production in India
Key Points
Climate change-induced heat stress is significantly impacting milk production in India, threatening rural livelihoods and national food security. This issue is crucial for UPSC aspirants, especially in GS Paper 3, which covers economic development and environmental issues. Last Updated: 08-07-2026
Key Facts About Climate Change and Milk Production
- Temperatures above 38°C and humidity over 70% drastically reduce milk yield.
- A 1 unit increase in Potential Evapotranspiration (PET) reduces milk yield by 1.4 liters per buffalo per day.
- Heat stress causes an annual loss of 3.2 million tonnes of milk, valued at Rs 2,661 crore.
- Without adaptation, losses could reach 15 million tonnes by the 2050s.
- The Lancet projects a 25% drop in milk production by 2085 due to thermal stress.
- Heat stress disrupts physiological functions, reducing milk yields by 20-30%.
India's Dairy Sector and Climate Change
The impact of climate change on India's dairy sector is profound, affecting economic, strategic, and social goals. The livestock sector contributes around 30% of Agricultural Gross Value Added (GVA), and declining productivity threatens agricultural growth and farmers’ incomes. India’s average cattle productivity is 1,777 kg/animal/year, below the global average of 2,699 kg, and climate change could further reduce milk production by 25% by 2085, threatening food sovereignty.
UPSC Relevance
This topic is relevant for GS Paper 3 under economic development and environmental issues. In prelims, questions could focus on the impact of climate change on agriculture and specific statistics like milk production losses. For mains, essay themes could include climate change impacts on rural economies and food security. Optional subjects like Geography and Economics may also find this topic relevant.
FAQ Section
- What is the impact of climate change on milk production in India? Climate change-induced heat stress is causing significant reductions in milk yield, affecting rural livelihoods and national food security.
- Why is this issue important? It threatens the economic stability of millions of smallholder dairy farmers and impacts India's agricultural growth and food sovereignty.
- What are the key features of the study? The study highlights that temperatures above 38°C and high humidity drastically reduce milk yield, with potential losses reaching 15 million tonnes by the 2050s without adaptation measures.
Detailed Coverage
- Heat and humidity above critical levels reduce milk yield drastically.
- Potential Evapotranspiration (PET) is a key indicator of milk production.
- Annual losses due to heat stress are around 3.2 million tonnes.
- The Lancet predicts a 25% drop in milk production by 2085.
- Heat stress diverts energy from milk production to thermoregulation.
- Buffaloes are extremely vulnerable to heat stress.
- Cross-bred cattle are highly vulnerable due to poor adaptation.
- Indigenous breeds are more resilient to heat stress.
- Declining milk productivity threatens the rural safety net.
- Increased milk prices could lead to food inflation.
- Livestock sector contributes 30% to Agricultural GVA.
- Cooperative dairy models face challenges with decreased yields.
- Declining dairy incomes threaten women’s empowerment.
- Reduced milk availability affects nutritional security.
- Increased herd sizes may worsen climate change.
- Climate-smart strategies are needed to protect the dairy sector.