Friday, February 28, 2025
Journal Article - Environmental catalytic city: New engine for air pollution control
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Op-Ed - It’s a Warm Winter Day. Is There a German Word for That?
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Op-Ed - Union coal ministry optimistic of achieving production of 170 million tonne coal in 2024-25
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Op-Ed - Global sales of combustion engine cars have peaked
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Thursday, February 27, 2025
Op-Ed - Mums for Lungs call for transparency as new ‘dieselgate’ looms
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Data Resource - Solar, battery storage to lead new U.S. generating capacity additions in 2025
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Op-Ed - How to write your way through climate anxiety and uncertainty
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Infographic - What is the difference between fine and coarse particulate matter?
There is constant confusion between PM2.5 vs. PM10 and “fine vs. coarse” fractions of particulate matter. The schematic above presents an overview of what is part of each of these fractions and they are broadly defined like this
- PM2.5 – this is all the particulate matter under 2.5 um
- PM10 – this is all the particulate matter under 10.0 um
- Fine PM – this is all the particulate matter under 2.5 um, which is same of PM2.5
- Coarse PM – this is all the particulate matter between 2.5 and 10 um
Monitoring Ambient Air Quality in Indian NCAP City Airsheds
In this SIM-air Working Paper Series # 40-2021, we defined (a) the size of NCAP city airsheds (b) the recommended number of ambient air quality monitoring sites in an airshed (c) the operational sampling frequency to support receptor-based source apportionment studies. These resources are necessary for strengthening the monitoring needs of an airshed to track pollution levels, to conduct receptor-model-based source apportionment studies, and to support long-term air quality management plans.
[Download the full document]
[Download grid & airshed information by city]
[More supporting material is posted here]
Resource Material - Air Quality Modelling Tools and Emission Calculators
Wednesday, February 26, 2025
Tuesday, February 25, 2025
Report - Thirty and Still Dirty: Why Do Delhi’s Roads Remain So Polluted?
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Sunday, February 23, 2025
Op-Ed - India’s coal demand to reach 1462 MT by 2030
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Op-Ed - Uber, Lyft riders choose ride-hailing over transit to save time
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Op-Ed - The promise of green iron, steel and ammonia is keeping the green hydrogen dream alive
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Op-Ed - Mayor promises action on air quality around London’s waterways
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Op-Ed - Dust storms drive rise in hospital admissions for asthma and heart failure
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Op-Ed - Trump administration revokes approval of NYC congestion toll
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Op-Ed - How Trump could be derailing a major global climate report
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Op-Ed - What a more sustainable tourism industry could look like
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Saturday, February 22, 2025
Op-Ed - Cuts to U.S. weather and climate research could put public safety at risk
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Op-Ed - Europe’s LNG imports decline 19% with gas demand at 11-year low
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Friday, February 21, 2025
Op-Ed - Clean energy contributed a record 10% of China’s GDP in 2024
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Op-Ed - Clean Air Zone Nets Health Authority Over £30K per Month
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Op-Ed - West Midlands improving residents’ understanding of air quality
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Op-Ed - New EV batteries are making electric cars cheaper and safer
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Op-Ed - Rolling back on climate actions may spell rise in preventable illness
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Op-Ed - Residential energy expenditures have increased with colder weather and higher prices
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Tuesday, February 18, 2025
Report - Everything you need to know about implementing Clean Air Zones
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Op-Ed - Scientists have a new explanation for the last two years of record heat
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Op-Ed - Will There Be Enough Power to Remove Carbon From the Sky?
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Op-Ed - Why is it so cold outside when the climate is warming?
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Monday, February 17, 2025
Humor in Pollution - Mumbai's Worsening Air and the Ferris Wheel
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Op-Ed - What’s holding India back in its renewable energy transition?
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Sunday, February 16, 2025
Op-Ed - Is telework really fostering laziness? Here’s why the opposite may be true
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