This article explores the complex issue of air pollution in India, focusing on the rural-urban linkage through the practice of stubble burning in states like Punjab and Haryana. It discusses the causes, consequences, and challenges faced by farmers, as well as innovative solutions and the role of youth in combating air pollution. The article emphasizes the need for collaborative, systemic approaches to address this environmental and health crisis.
Air pollution is often perceived as an urban problem, with cities being the primary focus for measurement, mapping, and management. However, some of the most severe urban air crises in India actually originate in the countryside. One of the most controversial rural-urban linkages contributing to this crisis is the practice of stubble burning.
Stubble burning refers to the practice where farmers set fire to the remains of crop stubble after harvesting rice or wheat. This practice is common in the states of Punjab and Haryana, which follow a rice-wheat cropping system. This system was introduced as a result of the Green Revolution and is not native to these regions.
Over time, the duration between harvesting rice and sowing wheat has shortened, necessitating quick disposal of crop residues. Additionally, falling water levels have delayed the start of the crop cycle to June, further compressing the timeline. After harvesting, farmers are left with straw or stubble on their fields, and with short gaps before the next sowing cycle, many choose to burn the stubble to clear the land quickly.
Burning stubble is fast and cheap, making it an attractive option for farmers who face tight sowing windows. However, this practice is devastating for the environment and public health. Smoke from these fires can travel hundreds of kilometers, especially in the post-monsoon period, combining with urban emissions to create deadly winter smog over Delhi and the National Capital Region.
Scientists have found that on some days, over 48% of Delhi's particulate matter can be attributed to stubble burning. The problem is exacerbated in winter when the air is stagnant, causing pollution to linger longer, worsening health risks, and triggering emergency responses.
It is important to understand that most farmers do not want to burn stubble. They are aware that it affects soil quality and poses health risks. However, they often have no viable alternatives due to several challenges:
Despite these challenges, there is hope. Across India, researchers and entrepreneurs are testing alternatives to stubble burning. For example, bio-decomposers developed by the Indian Agricultural Research Institute can be sprayed on fields to break down stubble into compost. This method has been trialed in Delhi, Uttar Pradesh, and Punjab.
Other innovations include technologies like Takachar, which help combat climate change and make biomass profitable by converting crop residues into useful products.
The issue of stubble burning highlights that air pollution is not just about tailpipes and factories. It involves livelihoods, seasons, pricing, machinery, and policy gaps. Therefore, solutions must be systemic and collaborative rather than punitive.
Interestingly, while Punjab and Haryana have been leaders in stubble burning, new evidence shows that Madhya Pradesh has become the country's hottest stubble burning zone recently, indicating the problem is spreading.
Systems thinking encourages looking beyond immediate actors and including multiple perspectives to find solutions. Young people and communities can contribute significantly without needing startups or laboratories:
The fight for clean air begins right where you are.
The 2020 COVID-19 lockdown provided a unique moment to observe air quality improvements when human activity was drastically reduced. This raised the question: can we have clean air without shutting down life?
Understanding the components of air pollution, especially Short-Lived Climate Pollutants (SLCPs), reveals that cutting air pollution can also help slow climate change relatively quickly.
Air pollution affects every organ in the human body and poses severe health risks. Delhi, India's most visible air pollution hotspot, experiences pollution often treated as a seasonal crisis rather than a year-round priority.
This exploration of air pollution in India, particularly the rural-urban linkage through stubble burning, underscores the complexity of the problem. It involves science, society, policy, and people. While the challenges are significant, clarity, courage, and collective will can lead to solutions. Innovations, systemic thinking, and community engagement are key to addressing this pressing environmental and health crisis.
The air we share connects us all, and protecting it requires understanding and collaboration across rural and urban divides.
