ISSN (Print) - 0012-9976 | ISSN (Online) - 2349-8846

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Electricity Generation from Bio Pellets

This article discusses the possibilities of using agricultural residues in power generation. It traces the evolution of the use of bio pellets in thermal power plants and the pilot projects implemented by the National Thermal Power Corporation that led to the successful roll-out of the new technology. Finally, it enumerates the advantages and disadvantages of using bio pellets and the emerging challenges.

Policy versus Pretence

Air: Pollution, Climate Change and India’s Choice Between Policy and Pretence by Dean Spears, Noida: HarperCollins, 2019; pp x + 258, ₹ 250.

Impact of Climate Change on the Productivity of Rice and Wheat Crops in Punjab

The seasonal trends in climate variables and their impact on rice and wheat yields in Punjab are assessed using daily data of temperature and rainfall by district from 1986 to 2015. A significant rise in mean temperature is observed in both the rice- and wheat-growing periods. Rainfall during the rice-growing period has decreased 7% annually over the past 30 years. Significant climate change will lower the rice yield by 8.10% by 2080 and wheat by 6.51%. To mitigate the effects of climate change, it is necessary to adopt climate-resilient crop choices and irrigation practices and technologies.

Delhi’s Pollution Crisis Is a Product of State Apathy and Ignorant Policy

The government is either unwilling or incapable of implementing effective policies to tackle the current pollution crisis.

A Novel Approach to Understanding Delhi’s Complex Air Pollution Problem

With rising concerns about the steep increase in air pollution in the National Capital Territory of Delhi, several factors—particularly motorised transportation, construction, and stubble burning in neighbouring states—are being identified as contributing to this hazard. However, in order to make effective policy decisions, there is a need for a holistic approach that identifies the root causes of the problem. The use of system dynamics simulation offers a novel systems thinking approach to understand Delhi’s air pollution, taking into account the dynamic nature of the air pollution system as well as the complex interdependencies among the various factors and sources of air pollution.

Ambient Air Pollution from Urban Transport in India

High levels of air pollution from transport systems in urban India pose a severe threat to public health. While long-term challenges remain to curtail pollution sources, immediate measures must be taken to minimise risks to exposed populations.

Weather Conditions and Air Pollution

To understand the impact of the odd-even policy in Delhi researchers will need to take into account prevailing weather conditions of not just Delhi, but also its outskirts and neighbouring states.

Cooking with Biofuels

The use of biofuels in rural households of developing countries generates indoor air pollution that imposes health risks, especially for those actively involved in cooking. This study examines risk factors for respiratory symptoms for rural women on the basis of comprehensive data on socio-economic variables, smoking habits, characteristics of the kitchen, cooking practices, fuel used, health symptoms, etc, from a very large number of sample households in three north Indian states, Uttar Pradesh, Rajasthan and Himachal Pradesh. The study points to a need for creating awareness on the issue in addition to making available more efficient stoves and clean fuels and highlighting the importance of proper ventilation in the cooking areas.

Vehicular Pollution Control in Delhi

Many command and control instruments, such as banning old commercial vehicles and banning leaded petrol have been implemented to curb Delhi's air pollution. This paper is an attempt to investigate whether these efforts have led to a commensurate fall in air pollution in Delhi. Our analysis shows that it has not resulted in concomitant improvement in ambient air quality. One of the reasons is reliance on new vehicles, with little emphasis on in-service vehicles. The containment of vehicular pollution requires an integrated approach, with combined use of transport policies and air pollution control instruments.

Air Pollution, Farming Systems and Livelihoods

Recent field evidence from some villages in Haryana substantiates documented findings from the world over about the impact of air pollution on agriculture and livelihoods.
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