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Evidence increasingly shows the effectiveness of controversial efforts, like northeastern Brazil’s Attitude Programme, to feed and house at-risk drug users.

Despite being outcasts in Moroccan society, waste collectors defend their profession as protectors of the environment.

For decades, Brazil has worked to improve conditions in its poorest neighbourhoods: building roads, drainage, lighting, and safer housing. Will budget cuts end its ambitious slum-upgrading efforts?

Hurricane Maria has left 3.4 million Puerto Ricans facing shortages of food, health care and transit, an American humanitarian crisis fueled by the US territory’s May 2017 bankruptcy.

Fifty years ago biologist Paul Ehrlich published ‘The Population Bomb,’ an apocalyptic warning that overcrowding would lead to wars and famine. Here’s what the book got right and wrong.

2019 marks the 250th anniversary of Captain James Cook’s arrival in New Zealand and the beginning of European contact with Māori.

The pandemic is still raging. Health, money, work, relationships, environment have changed throughout the world, and perhaps permanently so.

Large animals such as rhino and elephant need to be moved carefully, if they are relocated to a new reserve.

Experts agree that Turkey is even further polarised after contested unofficial results show President Recep Tayyip Erdoğan has won the right to expand his powers.

Population growth in Australia is a problem mainly because of the lack of a coherent national policy to manage it. The focus needs to be on maintaining quality of life through sustainable growth.