Choosing the Right Trees for Urban Greening

Many cities are currently creating more green spaces and planting trees. The growing momentum to increase the amount of green space in urban areas, seen, for example, in various ‘Million Tree’ campaigns, brings many benefits to urbanites. A reduction in summer temperatures, additional recreational opportunities, and storm-water control are among the motivations behind such programmes....
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Air Pollution and Climate Change: Fostering Better Decisions

A fireplace in the living room – some pay a premium for the cosy atmosphere, others consider it an irresponsible luxury. From an environmental point of view, wood-burning for residential heating isn’t the best option. While CO2 emissions are lower than those from gas and oil heating, it often results in greater emissions of air...
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You Are What You Breathe? Measuring Air Quality in Berlin

Berlin may not be the Netherlands, but there is definitely a fair amount of bicycling infrastructure throughout the city. And if you’re biking in Berlin you’re not alone on the road with only cars for company either. The debate about which cities are the best for biking aside, I enjoy biking, and this summer I...
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Q&A: Kandeh Yumkella on Sustainable Energy and Societal Prosperity

As UN Secretary-General Ban Ki-moon’s Special Envoy für Sustainable Energy for All (SE4All), Kandeh Yumkella has taken on the mammoth task of providing everybody on the planet with access to an environmentally friendly and secure energy supply. In the course of our meeting at the IASS-SE4All Forum on the global dimension of the German energy...
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How Dirty are the Glaciers of Central Asia?

To answer that question, it makes sense to travel there and take samples yourself. Together with colleagues from the Chinese Academy of Sciences and the University of Massachusetts in Amherst, I spent the summers of 2013 and 2014 taking snow samples from four different glaciers in Kyrgyzstan. The Abramov Glacier is found in the northern...
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