LifeIs Shame Necessary? It can be in the right hands Public shaming can force institutions to change their ways, finds Jennifer Jacquet – while Jon Ronson explores how it can lead to mob rule on the internet CultureLab
EarthDambusters: The end of Brazil's hydroelectric dreams? After a 40-year fight, the plan to build huge dams to tap the Amazon's power is running out of juice, mired in corrupution and scientific uncertainty Features