What happens inside a house is central to the climate: A quarter of all greenhouse gas emissions in Switzerland are caused by heating and treating hot water. But now things are moving, and emotions simmering, due to stricter laws and unexpectedly high energy prices. ► For an article in Beobachter magazine, I recently photographed three home owners in Mettau, Pfaffhausen, and Biel.

Ten years ago, I photographed Hortense Anda-Bührle for du magazine. Anda-Bührle was an entrepreneur, art collector, and the daughter of a controversial arms manufacturer. At one point, she was the wealthiest woman in the wealthiest country on earth.