One of the main contributors to climate change is methane, a colourless, odourless, and volatile gas. It traps 25 times as much heat in the atmosphere as carbon dioxide, another greenhouse gas that is produced in enormous quantities in cities. Furthermore, methane has the potential to contribute to the production of ground-level ozone, which is harmful to people, particularly those who smoke. Hyderabad emerged as India’s top methane-emitting city, surpassing Delhi, Bengaluru, Ahmedabad, and Jaipur. A November 2024 study in Urban Climate found that Hyderabad has the highest methane concentrations regularly, indicating an increasing environmental problem.

The TROPOspheric Monitoring Instrument on NASA’s Copernicus Sentinel-5 Precursor satellite provided the data for the study, which showed a consistent increase in methane levels from about 1,880 parts per billion (PPB) in 2019 to a peak of about 1,970 PPB in 2023.

Sources of Methane Emissions in Hyderabad

The main causes of Hyderabad’s methane problem include waste management concerns, industrial operations, and insufficient methane monitoring and control. The eutrophied Hussainsagar Lake, the heavily polluted Musi River, and the enormous Jawaharnagar landfill are the city’s main sources of methane.

Experts point out that a variety of sources, including landfills, water bodies, and flooded areas, contribute to methane emissions. The Greater Hyderabad Municipal Corporation (GHMC) zones of Rajendranagar, Falaknuma, Mehdipatnam, Charminar, Karwan, Jubilee Hills, Khairatabad, and Yousufguda are the ones with the highest methane emissions.

Methane fluctuations in the city’s suburb of Shadnagar were the subject of a different investigation carried out in 2023 by the National Remote Sensing Centre in Hyderabad. Hyderabad emerged as India’s top methane-emitting city due to consistently rising methane levels, indicating that the issue extends beyond the city limits and affects nearby regions as well.

Also Read: Study Finds Warming Climate Disrupting Marine Nutrient Cycles

Climate Change Implications of High Methane Emissions

Hyderabad’s high methane emissions are closely linked to warming temperatures, resulting in a vicious cycle whereby elevated methane levels raise temperatures, which in turn hasten eutrophication and increase methane output. Beyond climate change, methane emissions also have an impact on public health and air quality.

The Environmental Defense Fund claims that methane is a contributing factor in the production of ground-level ozone and particulate pollution, which can harm airways, intensify lung conditions, trigger asthma attacks, raise the risk of cardiovascular disorders, and increase the risk of stroke. Hyderabad emerged as India’s top methane-emitting city not only in terms of volume but also in its impact on air quality, making it a growing concern for both environmentalists and health experts. Moreover, Hyderabad’s increasing methane emissions are connected to unpredictable monsoon patterns and severe weather occurrences.

Also Read: AI And Climate Physics: How Machine Learning Is Revolutionizing Climate Science

Comparison with Other Indian Cities

The study examined methane levels in five Indian cities from 2019 to 2023: Hyderabad, Jaipur, Bengaluru, Delhi, and Ahmedabad. It identified clear regional trends by classifying methane concentrations according to patterns of land use and land cover. Methane levels were continuously highest in Hyderabad, followed by Delhi, Ahmedabad, Bengaluru, and Jaipur.

Ahmedabad and Jaipur experience high methane output from poor waste management and landfill emissions, whereas Delhi’s high methane emissions are mostly caused by industrial operations and vehicle emissions. Bengaluru, which is well-known for its fast urbanization, faces challenges related to methane production from a variety of sources. Methane emissions in Jaipur were strongly correlated with wind patterns and land surface temperature.

Policy and Regulatory Measures

Hyderabad’s current methane reduction regulatory framework is inadequate. The issue is made worse by the absence of comprehensive methane monitoring, which makes it challenging to monitor emissions and implement effective regulations. In order to control urban methane emissions, municipal organizations are essential, especially when it comes to enhancing waste management procedures.

Although there are government programs and policies in place, enforcement is still quite difficult. Hyderabad emerged as India’s top methane-emitting city partly due to the lack of stringent enforcement, which allows emissions to continue rising unchecked. Without strict regulatory limits, methane levels will keep increasing, making the metropolis more vulnerable to climate change.

Also Read: India And Other Major Nations Miss UN Deadline For Submitting Updated Climate Targets

Potential Solutions and Mitigation Strategies

There are a number of ways to reduce Hyderabad’s methane emissions:

• Waste Management Improvements: Methane emissions can be considerably decreased by producing biogas, managing landfills properly, and segregating waste.
• Sustainable Agricultural Practices: The city’s overall methane footprint can be reduced by minimizing methane emissions from livestock farming and paddy fields.
• Infrastructure Upgrades: Waste treatment facilities can reduce emissions by implementing methane capture technologies and leak-proof sewage systems.
• Community Participation: Public awareness campaigns, policy advocacy, and citizen-led projects can all help to advance stricter methane laws and improve environmental regulations.

In Conclusion

Hyderabad’s increasing methane emissions show how urgently effective intervention is needed. Public involvement, technological advancements, and regulatory enforcement must all be used to address this problem. If managed effectively, Hyderabad could serve as a case study for other Indian cities in reducing urban methane emissions and addressing climate change.

Also Read: Air Pollution Linked To Reduced Focus And Altered Social Behavior, Study Finds