An economic cost-benefit analysis of a general speed limit on German highways

Uniquely amongst industrialized countries worldwide, Germany does not im-pose a general speed limit on highways. This is different in the Netherlands, where a limit of 130km/h is implemented. The direct border between the two countries provides an opportunity to construct a natural experiment and analyze the social impact of a general speed limit of 130 km/h for passenger cars on German high-ways. I quantify the social welfare impacts from travel time, accident victims, fuel consumption and emissions for two highway sections in the federal state of North Rhine-Westphalia, Germany. The results are obtained by a descriptive comparison of micro data on travel speeds and accidents, collected on the two designated cross-border highways. In the central case, I conclude that on both highways a speed limit would be beneficial from the social and private perspective. The impacts found on the two highways differ in magnitude, but the qualitative decisions are identical and sufficiently robust to their core assumptions

Paleocene methane seep and wood-fall marine environments from Spitsbergen, Svalbard

A recently discovered Paleocene seep locality from Fossildalen on Spitsbergen, Svalbard, is described. This is one of a very few seep communities of the latest Cretaceous–earliest Palaeogene age, and the best preserved Paleocene seep community known so far. The seep carbonates and associated fossils have been first identified in museum collections, and subsequently sampled in the field. The carbonates are exclusively ex-situ and come from the offshore siltstones of the Basilika Formation. Isotopically light composition (δ13C values approaching -50‰ V-PDB), and characteristic petrographic textures of the carbonates combined with the isotopically light archaeal lipid are consistent with the formation at fossil hydrocarbon seep. The invertebrate fauna associated with the carbonates is of moderate diversity (16 species) and has a shallow water affinity. It contains a species of the thyasirid genus Conchocele, common in other seeps of that age. The finding sheds new light onto the history of seepage on Svalbard, and onto the evolution and ecology of seep faunas during the latest Cretaceous–earliest Palaeogene time interval