Pnas Science Sessions

William Nordhaus explains the economic consequences of Greenland ice sheet melt.

NAS member Dalton Conley explains how the Vietnam War draft lotteries are a natural experiment for studying how military service affects life outcomes.

Clark Larsen describes the costs of urban life a Neolithic city.

Mette Svenning and Alexander Tveit describe a bacterium that can live on gases in the air.

Derek Moulton explains the mathematics behind bivalve shell design.

Eelco Tromer and Jolien van Hooff explain the origins of the kinetochore in eukaryotic cells.

Fabiola Gianotti, Marcia McNutt, and Donna Shalala discuss the past, present, and future of women in STEM.

Francesco Paesani, Thomas Zeuch, and Valeria Molinero discuss the size limits of ice crystals.

Julia Schwab and Steve Brusatte describe how marine reptiles made the evolutionary move from land to sea.

Ellen Welti explains how grasshoppers in a Kansas prairie could be in decline even with abundant grass.

NAS member David Baker describes how to design proteins from scratch and the products of his lab's own protein design efforts

Elli Theobald and Scott Freeman describe the benefits of active learning for underrepresented minority students.

Adam Millard-Ball and Chris Barrington-Leigh explain trends in urban street network design.

NAS member and Nobel laureate David Baltimore describes efforts to enhance T cells' ability to fight cancer and HIV.

Christine Dunham discusses RNA frameshifting and its potential applications in biotechnology.

Henri Weimerskirch describes how albatrosses can help detect illegal fishing boats.

Philipp Heck tells the story of interstellar stardust grains that predate the Solar System.

Baruch Fischhoff, a decision scientist at Carnegie Mellon University, explains the ingredients necessary for effective science communication.

Kerry Sieh recounts the hunt for a meteorite impact crater in Southeast Asia.

Dana Lepofsky describes ancient sustainable clam gardening practices.