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Current severe heatwaves that will likely increase in severity and frequency in the future are driving a rise in the use of air conditioners, threatening the environment with their high energy consumption and refrigerants with high warming potential. A new study finds that switching to propane as a refrigerant could lessen the global temperature increase from space cooling.

Between 2010 and 2019, average annual global greenhouse gas emissions were at their highest levels in human history, but the rate of growth has slowed. Without immediate and deep emissions reductions across all sectors, limiting global warming to 1.5°C is beyond reach. However, there is increasing evidence of the success of climate action, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report.

IIASA Energy, Climate, and Environment Program Director Keywan Riahi and Joeri Rogelj, a senior researcher at the institute, have been appointed to the new European Scientific Advisory Board on Climate Change. This new independent advisory body will provide scientific advice to underpin climate action and efforts by the European Union (EU) to reach climate neutrality by 2050.

To have a better chance of holding global warming to 1.5°C, we need to accelerate the phase-down of HFC refrigerants under the Montreal Protocol. This could also reduce pollution and improve energy access.

The increasing amounts of municipal solid waste and ineffective waste management systems threaten the environment and contribute to climate warming, yet the waste sector is often neglected in discussions about climate change and air pollution. A new IIASA-led study shows, for the first time, how circular waste management systems can help to effectively curb emissions of greenhouse gases and air pollutants.

Climate change disproportionately affects the world’s most vulnerable populations. Not only are these effects compounding and magnifying existing inequalities, but the impacts will increase in severity over time, affecting both current and future generations. A new international study shows that the redistribution of revenues from a carbon tax can promote equity and protect marginalized populations.

A new international study coordinated by IIASA shows how near-term mitigation can help to prevent an overshoot in global temperatures, thereby reducing climate risks and bringing long-term economic gains.

IIASA is proud to announce that 12 researchers from across various IIASA programs have been named on the annual Highly Cited Researchers™ list from Clarivate.

Tackling pollution from the emission of nitrogen compounds, particularly ammonia, could reduce many of the 23.3 million years of life that were lost prematurely across the world in 2013 due to nitrogen-related air pollution, an international study led by Chinese scientists has discovered using a modeling framework, including the IIASA GAINS model.

The European Commission (EC) has prepared a set of proposals revising EU climate, energy, and transport-related legislation, the so-called 'Fit for 55 package', aiming to deliver the EU's 2030 climate target on its way to climate neutrality in 2050. IIASA research is part of the scientific backbone that underlies the strategies laid out in the package.

Air pollution in India is generated more by the wealthy, while the poor suffer most of the health impact, according to a study by five IIASA researchers published in Nature Sustainability.

The United Nations Secretary-General, António Guterres, has appointed a new group of ten renowned experts including IIASA Energy, Climate, and Environment Program Director, Keywan Riahi, to support the UN Technology Facilitation Mechanism to bring science into the implementation of the Sustainable Development Goals (SDGs).

A new report released by the Organisation for Economic Co-operation and Development (OECD) assessed the biophysical and economic benefits of air pollution policies in Arctic Council countries. The analysis relied on a suite of modeling tools, including the IIASA GAINS model, to project the impacts of increasingly ambitious policy action up to 2050.

Adopting policies that are consistent with achieving the Paris Agreement and prioritize health, could annually save 6.4 million lives due to healthier diets, 1.6 million lives due to cleaner air, and 2.1 million lives due to increased physical activity, according to new research.

Over the past decade, the climate change research community developed a scenario framework that combines alternative futures of climate and society to facilitate integrated research and consistent assessment to inform policy. An international team of researchers assessed how well this framework is working and what challenges it faces.

How can fast growing cities keep air pollution in check? A recent World Bank report highlighting IIASA research explores this tricky question, looking at the kinds of policies and actions cities have taken to tackle poor local air quality, thus providing lessons for other cities.

A new grant from the European Research Council (ERC) will fund an international research project on negative emissions technologies. IIASA Energy Program Director Keywan Riahi is one of the project leaders.

Amid deep disruption and uncertainty caused by the COVID-19 pandemic, a surge in well-designed energy policies is essential in forging a resilient energy system equipped to meet global climate goals as well as air quality standards.

According to the authors of a new study published in Nature, rising nitrous oxide emissions are putting reaching climate goals and the objectives of the Paris Agreement in jeopardy.

A new IIASA-led study shows that coordinated international action on energy-efficient, climate-friendly cooling could avoid as much as 600 billion tonnes CO₂ equivalent of greenhouse gas emissions in this century.