Climate Trends


Release date: September 7, 2022

The United Nations International Day of Clean Air for Blue Skies on September 7 comes at a time when we stare at the crop residue burning and winter season during which air quality levels in large parts of the country touch hazardous limits. Climate Trends looks at possible solutions for crop residue burning, which have been cited in credible research and policy efforts. These have been vetted by scientists and experts working in this space.

Health effects of short and long-term air pollution exposure: Evidence from a survey of residents living in rural and urban regions near Kolkata

Release date: 23 July 2022

A first-of-its-kind study generates evidence on the health impacts of air pollution amongst varying segments of the population in West Bengal. In the winter season of 2021-22, a field survey was conducted across seven regions in Kolkata, Howrah, Asansol, Haldia, Barrackpore, Bardhhaman and Barasat in West Bengal  – to assess the impact of air pollution on public health.

Recommendations: Road to Meeting India’s National clean air goals: Hurdles & Solutions

More than three years into India’s National Clean Air Programme (NCAP), central and state governments have taken multiple mitigation measures to reduce air pollution. Recent ground research proves that there is a disconnect in the understanding of the relevance and scale of the problem in the ULBs and their role and awareness in tackling this crisis. The gaps in these linkages towards effective ground implementation are one of the key factors which require strengthening. Multidimensional coordination is required along with the political will and administrative compliance and action for effective mitigation. This report is a set of recommendations that came out of a discussion organised by Climate Trends involving 14 key representatives from inplementing agencies responsible for managing India’s air pollution crisis.

Uttar Pradesh Survey

As Uttar Pradesh goes to polls in February 2022, a perception survey among its citizens showed that climate action by political parties could sway their voting preference. The survey, conducted by Climate Trends and YouGov showed that 86% of the respondents felt that there is an urgent need to tackle climate change and a nearly equal number (87%) said climate change was important to their electoral vote.

Three years of the National Clean Air Programme: A status check

Release date: January 10, 2022
Three years since the National Clean Air Programme (NCAP) was implemented across India to reduce particulate matter levels in 132 cities by 20-30%, data shows there has been little or no progress on the ground. This report is an analysis of the government’s air quality data which shows that not only have most non-attainment cities reduced PM 2.5 and PM 10 levels only marginally but some have also recorded an increase.

Nitrogen Dioxide Levels: An Analysis of States crossing safety standards (September 2021)

Release date: December 15, 2021
A detailed analysis of emissions data Delhi, Uttar Pradesh, and Rajasthan show that annual NO2 levels routinely breach the Central Pollution Control Board’s (CPCB) 40 ug/m3 annual safety limit and 80 ug/m3 24hr safe limit. Delhi has since 2013 not been able to maintain levels within CPCB’s annual average even once.

Key recommendations on opportunities for addressing air pollution in South Asia

Release date: August 19, 2021
Outcome of a webinar – Opportunities for Addressing Air Pollution in South Asia, organised by Climate Trends and the International Centre for Integrated Mountain Development (ICIMOD) the recommendations focus on the solutions for the challenges that air pollution poses for the developing economies of South Asia.

Air Quality Trends in Uttar Pradesh and the Way forward

The report analyses average PM data from 25 CAAQMS in Uttar Pradesh from January 2017 to July 2021 to recommend a better monitoring network, an airshed approach and bring health to the forefront in the state’s air pollution fight.

Maharashtra Clean Air Action Plans - A status check (December 2020)

Release date: December 9, 2021
Decoding the Clean Air Action Plans for each 17 non-attainment cities and Vasai-Virar in Maharashtra, revealed that vehicular emissions are the state’s top priority for air pollution management, claiming 314 out of 806 total measures. At 139 measures, industrial emissions ranked second and resuspended dust gathered the third rank with 108 control options. An analysis also revealed that all the city action plans categorize the control options into high, medium or low impact without a definition, measure or uniformity. Similarly,
implementation timelines of short, mid and long term are not defined either.

One for All, All for One: Inter-state Coordination on Air Pollution in the Indo-Gangetic Plain (Novem 2019)

40% of India’s population living in the Indo-Gangetic Plains (IGP) is exposed round the year to extreme levels of particulate matter, fossil gases, VOCs and smoke. The report documents the factors contributing to this persistent air pollution that are not specifically addressed in National Clean Air Program (NCAP) city plans and recommends modalities of an inter-state regional coordination mechanism to address sources that affect the entire region although they are situated outside the jurisdiction limits of cities.

Unknown Hurdles to A Trillion Dollar Economy: Solving Air Pollution in Maharashtra (August 2019)

Maharashtra has the most number of cities in the NCAP indicating the level of wide-spread pollution in the rich, industrialised, and agrarian state. Even with the 20-30% reduction targetted over the next five years, the NCAP will not meet national permissible limits in 16 out of 26 non- compliant cities of the state. The report identifies sources left out in pollution mitigation planning and gaps in policies of sectors that affect air quality as well as hurt the state economy’s plans to achieve US$ 1 trillion GDP.

Political Leaders Position & Action on Air Quality: Indian MPs report-card 2014-19 (April 2019)

This report presents a review of the political leadership, position and statements provided by the Members of Parliament (MPs) in the 14 cities of India ranked by WHO in 2018 as the world’s most polluted cities.