General Studies Paper 3
Introduction:
- India’s urban population is estimated to reach 675 million in 2035, the second highest in the world. Although there is widespread recognition that cities have been fuelling India’s rapid rise to economic superpower status, almost all are failing their inhabitants in terms of delivering on health, environmental and equity targets.
Urban India and multiple health risks
- India’s urban inhabitants experience multiscalar health risks including
- the world’s highest levels of air and noise pollution
- limited greenery
- lack of access to sidewalks and parks that limit active lifestyles
- archaic modes of transport that contribute to air pollution
- pernicious access to nutritionally dense unhealthy foods
- unprecedented exposure to toxic chemicals and heavy metals.
- This concatenation of exposures dramatically magnifies health risks for heart disease and diabetes, referred to as cardiometabolic disease, especially when combined with a lack of physical activity.
- Addressing the diverse and multiscaled social, environmental, and infrastructure risk factors that contribute to cardiometabolic risk in cities, by transforming the design of the built local environment as well as provisioning systems, represents a new paradigm for public health.
- Globally, there are seven key physical provisioning systems that provide food, energy, mobility, transportation, housing, green infrastructure, water and waste management that lie at the core of human health, wellbeing, equity and sustainability.
- Dysfunctional provisioning systems consume more than 90% of the world’s water and global CO2 emissions and facilitate an estimated 19 million premature deaths annually.
- Based on the primal importance of India’s cities for its future, a new narrative for improving health and wellbeing in cities is needed. This is reflected in several high level policy frameworks, such as the United Nations Sustainable Development Goals (SDG) framework, the New Urban Agenda, and the Health in All Policies approach
Double or triple duty actions
- Investments such as clean energy and electric mobility which are underway in India offer a once in a lifetime opportunity to improve health through their immediate and dramatic impact of air pollution levels, while also helping meet India’s climate and equity goals.
- While these developments are extraordinarily important, the magnitude of their impact on health outcomes is at risk of being limited, if not simultaneously accompanied by changes in other provisioning systems such as food, mobility and green infrastructure.
- Indeed, studies show that even small changes in the latter systems may have a large catalytic effect on health and productivity and serve as double duty or triple duty interventions. For example, making way for safe walking and biking lanes, pavements and no car zones, can help not only improve physical activity and reduce sedentary lifestyles but also reduce the risk from air pollution.
- Walking and biking on many Indian roads is not only hazardous but also nearly impossible, as sidewalks are overwhelmed by building and human waste, parked vehicles or street hawkers.
Towards holistic urban policy
- Studies that have modelled the economic and health impact of the clean energy transition in the transportation sector are currently based almost entirely on the reduction in air pollution and its associated health impact.
- Ensuring that the transition to electric cars also paves the way for active transport options such as walking paths and bicycling lanes may not only provide a mechanism to connect the “last mile” but the health and consequent economic benefits of active transportation accrue on top of the benefits of reducing air pollution, making such investments even more economically viable. Thus, increasing active transportation by any means must be a critical component of a clean energy policy.
- Similarly, policies that encourage fresh fruits and vegetables and limit sugars and salt in beverages, which may have the largest impact on health outcomes such as obesity, Type 2 diabetes (T2D) and cardiovascular disease, may help contribute to not only better health outcomes but also economic productivity.
Conclusion
- Unhealthy diets, reduced physical activity and air pollution in cities in India pose a greater risk to morbidity and mortality than most other risk factors combined including drugs, tobacco, alcohol and accidents. These need to be dealt with on a war footing if India is going to make progress in its fight against cardiovascular disease, obesity and T2D. This will necessarily entail a street fight.