Headline: Air Quality

Greenhouse gas emissions from human sources have increased dramatically since the dawn of the Industrial Revolution. This has led to a 40 per cent increase in the atmospheric concentration of CO2 since 1750. There is strong scientific consensus that climate change and its various effects, including global warming and rising sea levels, are driven by these processes. Key sources of greenhouse gas emissions are also often major sources of air pollutants such as ozone precursors and particulate matter. The World Health Organisation (WHO) estimates that air pollution is responsible for seven million premature deaths worldwide each year – and this figure is growing. In addition, climate change and air pollution both have severe impacts on agricultural production and consequently on food security. While distinct issues, there are many connections between climate change and air quality. Clearly, reducing greenhouse gas and air pollutant emissions is critical to curbing climate change and safeguarding human health and food security.

Study

Heat-Ozone Extremes Affect Mortality

Cities in the Global South are particularly vulnerable to the impacts of global warming. Rising temperatures are worsening the effects of ozone pollution, for example. Like many other cities in the Global South, Santiago de Chile is highly segregated along socio-economic lines. RIFS scientist Tabish Ansari and a team of researchers have examined and compared the effects of heatwaves and ozone episodes in different areas of the city.

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Study

Benefits of the Net-Zero Emissions Strategy for Nepal

Achieving the goals of the Paris Climate Agreement will require the combined efforts of states and companies around the world. How can developing countries achieve carbon neutrality and boost their resilience while pursuing economic growth and improved living standards? A study by the Research Institute for Sustainability (RIFS) draws on the example of Nepal to analyse the benefits of a net-zero emissions strategy.

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Hydrogen

Hydrogen-Powered Heavy Duty Vehicles Could Contribute Significantly To Achieving Climate Goals

A partial transition of German road transport to hydrogen energy is among the possibilities being discussed to help meet national climate targets. A team of researchers from the Institute for Advanced Sustainability Studies (IASS) has examined the hypothetical transition to a hydrogen-powered transport sector through several scenarios. Their conclusion: A shift towards hydrogen-powered mobility could significantly reduce greenhouse gas emissions and greatly improve air quality - in particular, heavy duty vehicles represent a low-hanging fruit for decarbonization of road transport.

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Report

Air Quality and Ozone: the Current State of Play

The threat posed by ozone to human health and vegetation continues to be a matter of concern for German politicians, scientists, and the general public. Participants in a workshop organised by the Institute for Advanced Sustainability Studies (IASS) and the German Environment Agency (UBA) analysed the current state of knowledge on ozone and identified areas where more action is required. The resulting publication contains a catalogue of recommendations for tackling the ozone problem.

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Car-free Friedrichstraße: IASS Evaluates Impacts on Air Quality

The Senate Department for the Environment, Transport and Climate Protection in Berlin will close Friedrichstrasse to vehicles for five months. A section of this major thoroughfare is to be transformed into a car-free zone from 29 August. Experts anticipate increases in pedestrian and bicycle traffic. Researchers will study how the closure affects air quality, with scientists from the IASS helping to measure and evaluate its impact on air pollution levels.

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Blog Posts

Lung doctors for more pollution? – A Q&A on the debate about limit values

Last week in Germany, retired pulmonary physician Dieter Köhler made waves by publishing a statement, signed by over one hundred other fellow lung doctors, calling into question the science behind air quality standards and suggesting that current EU-wide limits for nitrogen oxides and fine particulate matter are unnecessarily strict. Not coincidentally, this comes at a time when diesel driving bans are being imposed in many German cities because of their inability to meet the EU-wide limit value for nitrogen dioxide (NO2), for which diesel cars are the main source. This has sparked debate on many levels, from the journalistic to the political. In this blog post we specifically address the topic of air quality limit values based on our expertise in the fields of air quality and public health.

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