“Boomerang” earthquakes, which reverse direction and travel back the way they came, can occur along simple faults, not just complex ones, according to MIT research that also suggests these earthquakes may be more more common than previously thought.

The carbon footprint of the Olympic Games remains substantial, despite reforms by the International Olympic Committee. A new study by the University of Lausanne shows that the Olympic model needs further reform to comply with the Paris Agreement and outlines possible courses of action.