Environment

Air pollution in South Africa: affordable new devices use AI to monitor hotspots in real time

By Bruce Mellado, University of the Witwatersrand Air quality has become one of the most important public health issues in Africa. Poor air quality kills more people globally every year than HIV, TB and malaria combined. And that’s just the tip of the iceberg. Air pollution makes people less productive because they get headaches and feel tired. India, for example, has poor air quality. The impact of India’s […]

14 August, 2024

Environment

Can nations ever get artisanal gold mining right?

By Aimee Gabay, via Mongabay Artisanal and small-scale gold mining (ASGM) is a pillar of stability and opportunity for at least 16 million people worldwide, particularly in rural, impoverished communities. But with these pros also come cons. Given the serious contamination and environmental degradation associated with it, nations around the world are pushing for more sustainable laws and regulations. The question remains for policymakers, however: Can policymakers ever get it right? […]

14 August, 2024

Environment

Animal apocalypse: Deadly bird flu infects hundreds of species pole-to-pole

Brown skuas and south polar skuas, two gull-like species that nest in Antarctica, are sometimes called the “pirates of the Southern seas.” These migratory seabirds are fierce, competitive predators that hunt or scavenge anything, from eggs and adult birds to seafood, mammals or garbage. “They’re really tough animals — and they’re dying,” says Antonio Quesada, director of the Spanish Polar Committee. He gravely recounts why this season’s field […]

13 August, 2024

Environment

Réunion is a tropical island getaway – our climate study shows that it could attract more tourists during European summers

The town of Cilaos is just one of many draws for visitors to Réunion. Balate Dorin By Ariel Sarah Prinsloo, University of the Witwatersrand and Jennifer Fitchett, University of the Witwatersrand You’re scrolling through Instagram, only half paying attention to your friends’ updates, when a photo of a beautiful, pristine beach grabs your eye. Somebody you know is lounging on that very beach – and suddenly you want to […]

13 August, 2024

Africa

Sudan’s catastrophe: farmers could offer quick post-war recovery, if peace is found

By Khalid Siddig, International Food Policy Research Institute (IFPRI) ; James Thurlow, International Food Policy Research Institute (IFPRI) ; Josée Randriamamonjy, International Food Policy Research Institute (IFPRI) ; Mariam Raouf, International Food Policy Research Institute (IFPRI) , and Mosab Ahmed, International Food Policy Research Institute (IFPRI) More than a year of conflict between the Sudanese Armed Forces and the Rapid Support Forces has weakened the country’s fragile […]

13 August, 2024

Africa

DRC communities turn up heat on EU lenders funding palm oil giant PHC

By Didier Makal, via Mongabay On May 24, 2024, clashes broke out between members of a local community and security guards at an oil palm plantation in the northeast of the Democratic Republic of Congo (DRC), the latest such incident in a long-running dispute over some 58,000 hectares, or 143,000 acres, of land. A source in the town of Lokutu said the community members were protesting the […]

13 August, 2024

Africa

Some solitary mammals have surprisingly social lives: what I’ve learned from a tiny South African rodent

By Lindelani Makuya, University of the Witwatersrand We probably all know someone who lives a solitary life. But not everyone realises that there are solitary individuals in the animal kingdom, too. Examples of solitary species are some shrews, and large predators, such as black bears (Ursus americanus) and leopards (Panthera pardus). Solitary living is defined by the social organisation of individuals, where both males and females sleep […]

12 August, 2024

Africa

Ethiopia’s deadly landslides are caused by both nature and man – a geophysicist explains

By Getnet Mewa, Addis Ababa University As many as 300 people were killed in landslides triggered by higher than normal rainfall in south-western Ethiopia in July 2024. More than 15,000 were also forced to leave their homes. Another less deadly landslide that occurred two weeks later killed a dozen. Getnet Mewa, a geophysicist who studies landslides and associated landmass movements, explains where and how landslides occur in […]

12 August, 2024

Environment

Oceans without sharks would be far less healthy – new research

Gray reef sharks and blacktip reef sharks near Tahiti, French Polynesia. Alexis Rosenfeld/Getty Images By Michael Heithaus, Florida International University There are more than 500 species of sharks in the world’s oceans, from the 7-inch dwarf lantern shark to whale sharks that can grow to over 35 feet long. They’re found from polar waters to the equator, at the water’s surface and miles deep, in the open […]

7 August, 2024