Editor's note

It's been a little less than a year since scientists made the stunning announcement that they'd discovered a seventh species of Great Ape. But the Tapanuli Orangutan's story may be over before it's really begun: it is perilously close to extinction, and a massive hydropower dam being built in Sumatra as part of China’s immense Belt and Road Initiative should be the final nail in its coffin. Bill Laurance warns this is just the first of a series of environmental crises that will be sparked by the ambitious Chinese initiative.

Brazil is in the grips of a homelessness crisis, a situation highlighted by the huge fire that struck historic downtown São Paulo this week. It killed one person and razed a building that housed several hundred squatters. Patricia Rodrigues Samora explains what the fire reveals about the rise in urban homelessness Brazil has seen in recent years and the nation's growing squatter movement.

Natasha Joseph

Science & Technology Editor

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The imperilled Tapanuli Orangutan in northern Sumatra. © Maxime Aliaga

China-backed Sumatran dam threatens the rarest ape in the world

Bill Laurance, James Cook University

A US$1.6 billion dollar dam in Sumatra threatens the recently discovered and desperately imperilled Tapanuli Orangutan.

Firefighters did not expect to find hundreds of homeless families squatting in a São Paulo building that caught fire on May 1. REUTERS/Leonardo Benassatto

Highrise fire in Brazil spotlights city's housing crisis and the squatter movement it spawned

Patricia Rodrigues Samora, Pontifical Catholic University of Campinas

Hundreds of homeless people were living in an abandoned police headquarters in São Paulo when a massive fire broke out on May 1. The residents were part of a scattering nationwide movement in Brazil.

Arts + Culture

Science + Technology

Politics + Society

  • Unearthed mummy recalls an Iran before the ayatollahs

    David J. Wasserstein, Vanderbilt University

    A mummy unearthed during construction in Iran may be the body of a former shah. For the Islamic regime, the discovery is an unwelcome reminder of Iran's secular past. For protesters, it holds promise.

Health + Medicine