Frederik Berg

Whitepapers and worked-through questions. Each one is published because the answer was hard to assemble and is not written down anywhere else in a form you could cite. Every factual claim carries a source, and the sources were read rather than summarised.

Footprints and Handprints

Carbon and ecological accounting · whitepaper, PDF

Why one country has several different and equally correct per-capita footprint figures, how a personal footprint is computed, where a product’s system boundary falls, why the ecological footprint is mostly a carbon number wearing an area unit, and why a handprint can never be netted against a footprint.

Complete Food and Home Cooking

Diet footprint and health evidence · whitepaper, PDF

Vegan complete foods such as Huel, Jimmy Joy and Mana against a regional, seasonal, whole-food vegan diet in Germany. Both land around 1–3 kg CO₂e per 2000 kcal, the spread within each option is larger than the gap between them, and refinement rather than manufacturing drives the difference.

Aufgehobene Zugbindung und die Alternative im DB Navigator

Deutsches Fahrgastrecht · deutsch, English

Die App meldet, die gebuchte Verbindung sei nicht mehr erreichbar, man wählt eine Alternative, und der ursprüngliche Anschluss wäre doch noch erreichbar gewesen. Bestand eine Pflicht, das vor dem Umstieg erneut zu prüfen? Mit den Klauseln aus den Beförderungsbedingungen im Wortlaut.

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