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KOLKATA: The skyline on this part of the country turns grey by afternoon. By dusk, a thick layer of smog envelops the horizon.

Diesel engines power the dominant share of goods movement, construction equipment, and public transport vehicles in the global economy. This report presents a global strategy to reduce fine particulate (PM2.5) and black carbon emissions from the global fleet of on-road diesel vehicles. The strategy identifies 36 countries for immediate action.

Controversy exists about the differences in air pollution exposure and inhalation dose between mode of transport. We aimed to review air pollution exposure and inhaled dose according to mode of transport and pollutant and their effect in terms of years of life expectancy (YLE).

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The results of the November 8 polls could have profound implications for the global architecture on climate change, given the publicly stated position of Republican candidate Donald Trump on this i

The European Investment Bank (EIB) has completed an analysis of its standards, criteria and procedures in relation to short-lived climate pollutants. The EIB also looked into the projects and sectors that it finances, the impacts they have on SLCP emissions and where the bank can scale up financing of projects that mitigate these emissions.

This protocol was developed and subsequently tested in 2012–2015 by Nordic test and research institutes, with Danish Technological Institute as project manager.

Within the framework of air quality studies at the megacity scale, highly time-resolved volatile organic compound (C2–C8) measurements were performed in downtown Paris (urban background sites) from January to November 2010. This unique dataset included non-methane hydrocarbons (NMHCs) and aromatic/oxygenated species (OVOCs) measured by a GC-FID (gas chromatograph with a flame ionization detector) and a PTR-MS (proton transfer reaction – mass spectrometer), respectively.

A new report indicates the combustion of fossil fuels is gravely affecting the alpine tundra's climate

The mass extinction of life 66 million years ago at the Cretaceous/Paleogene boundary, marked by the extinctions of dinosaurs and shallow marine organisms, is important because it led to the macroevolution of mammals and appearance of humans. The current hypothesis for the extinction is that an asteroid impact in present-day Mexico formed condensed aerosols in the stratosphere, which caused the cessation of photosynthesis and global near-freezing conditions. Here, we show that the stratospheric aerosols did not induce darkness that resulted in milder cooling than previously thought.

Long-term measurements (from August 2009 to December 2014) of aerosol black carbon mass concentration (MBC) and spectral aerosol optical depth (AOD) were carried out from a high-altitude location, Hanle in western trans-Himalaya as part of the Regional Aerosol Warming Experiment.

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