Shockwave from Hunga Tonga-Hunga Haʻapai volcano measured in Germany – an examplary event to think about

Our air knows no boundaries and it is quite exhilarating to see that the shockwaves produced by the Hunga Tonga-Hunga Haʻapai volcano eruption almost 16.800km away were measured by our instruments deployed around Frankfurt (see chart). The shockwave travelled almost 16 hours. Not only that, but it seems that the same shockwave travelled around the globe and reached the same point another 18 hours later!

Why this is relevant? This exemplifies that our atmosphere knows no boundaries. And that events from emissions to eruptions ripple across the globe. Some of these events happen in slow motion, but they do happen and do have a measurable effect today. Read more

Air pollution can significantly increase the risk of dementia?!

To live, we need the air to breathe. Clean air is essential for a healthy life. An adult human breathes about 7.5 litres of air per minute. Only healthy air keeps people and nature healthy. Air pollution has been shown to cause lung cancer, chronic obstructive pulmonary disease, emphysema, asthma, heart disease and strokes.

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Fireworks sales ban: Low particulate matter levels at the turn of the year 2021/2022 in Germany

As in the previous year, the sale and lighting of fireworks and firecrackers on New Year’s Eve were restricted or banned nationwide due to the Corona pandemic. The level of particulate matter in Munich and other cities, which is harmful to health, was pleasingly low at the turn of 2021/2022. Like last year, the maximum particulate matter values remained far below the values measured in previous years with New Year’s Eve fireworks.

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The Road from Glasgow to Sharm El-Sheikh: Combating Climate Change

On Saturday, January 8, the 4th edition of the World Youth Forum in Sharm El-Sheikh started. This six-day event has the mission to bring together youth from around the world and the decision-makers and different influential officials. The forum is a chance for you to engage with top policy-makers in the region and network with promising youth in the region and the world determined to create change in the world we live in today.

We at Hawa Dawa are proud that our CEO and co-founder, Karim Tarraf, has been invited to join „The Road from “Glasgow” to “Sharm El-Sheikh”: Combating Climate Change Panel Discussion“. Read more

Children’s right to clean air: children in particular suffer from air pollution in many ways – an overview

Access to clean air has recently been recognised as a human right but is not yet part of the UN Convention on the Rights of the Child. More than 29 000 children around the world have now called for their right to clean air to be recognised as part of the Freedom to Breathe campaign, which will be implemented within a forthcoming amendment to the UN Convention on the Rights of the Child. Is this particular emphasis on the right to clean air specifically necessary? Or, to put it another way, do children suffer differently from air pollution than adults?
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Forego fireworks for good air on New Year’s Eve? How does particulate matter affect health?

At the end of the year, there is a regular discussion about whether fireworks should be dispensed with on New Year’s Eve or whether they should even be officially banned. This year, the discussion was additionally fuelled by the situation with Corona and the ban last year, which was mainly due to Corona.

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German Government’s coalition agreement 2021-2025: What can be the impact on environment and climate?

„Wir wollen die Potentiale der Digitalisierung für mehr Nachhaltigkeit nutzen“ – so beginnt der Abschnitt zu „Nachhaltigkeit in der Digitalisierung“ im Koalitionsvertrag von der SPD, Bündnis 90 / Die Grünen und FDP. Die 17 Globalen Nachhaltigkeitsziele der Vereinten Nationen (SGD) sollen Richtschnur der Regierungspolitik sein und Klimaschutz soll zu einer Querschnittaufgabe werden. Read more

Digitisation, Climate Protection and Sustainability: Chances and Challenges for Cities

Martin Montag, Head of Sales Public Sector, discussed the topic “opportunities of digitisation” in the course of the network meeting “Junge Bürgermeiter*innen”. It is an exciting topic, as municipalities face many challenges and opportunities at the interface of climate protection, sustainability, and digitisation. Here are some spotlights on the topic:

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27 000 preventable premature deaths in Germany

At the beginning of this week, all major media reported 300 000 premature deaths due to particulate matter pollution in 2019 within the EU (e.g., Spiegel or Süddeutsche Zeitung). This news refers to a communication of the European Environment Agency (EEA), which certifies in principle a positive development of air quality in Europe, but also points out how many premature deaths are due to increased fine dust pollution. However, the actual core is that 50% of these deaths could have been avoided by complying with the new WHO guideline values. The following also applies to Germany: Of 53 800 premature deaths, 27 000 could have been avoided. Read more

Background to Climate and Climate Change


“Climate change is the greatest threat of the future. Every state must cooperate in combating the causes and mitigating the consequences.” (Klaus Töpfer)

The word climate comes from Greek and essentially means “inclination” or “curvature”. It does not mean the inclination of the Earth’s axis but the curvature and coherence of the Earth itself. The totality of weathers events is called climate. Weather is local, and climate is global. The larger and more complex a system, the slower it changes, and climate is arbitrarily complex. Read more