Petra Holden

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Village de Marofihitsa à Morondava, à Madagascar : des membres de la communauté plantent des jeunes plants qu’ils ont eux-mêmes cultivés afin de restaurer les forêts de mangroves. Elhuyar/Albatross Project

Les populations africaines veulent des services climatiques qui répondent à leurs besoins locaux

Petra Holden, University of Cape Town; Cherié Janine Forbes, University of Cape Town; Gerald Ngoma, University of Cape Town, and Martine Visser, University of Cape Town

Restaurer les écosystèmes africains exige des services climatiques croisant prévisions et savoirs autochtones.
Marofihitsa village in Morondava, Madagascar: community members plant seedlings they’ve grown to restore the mangrove forests. Elhuyar/Albatross Project

Africa’s climate services need local detail and knowledge, say people who use the information

Petra Holden, University of Cape Town; Cherié Janine Forbes, University of Cape Town; Gerald Ngoma, University of Cape Town, and Martine Visser, University of Cape Town

People restoring Africa’s ecosystems need climate services that combine forecasts with Indigenous knowledge and information about land, water and livelihoods.
Women have harvested mussels and other shellfish, a valuable source of protein and income, on South Africa’s Wild Coast for three centuries. Barry Christianson

Climate change hits South African women unevenly: why race, class, age and power matter

Petra Holden, University of Cape Town; Gina Ziervogel, University of Cape Town, and Leigh Stadler, University of Cape Town

Climate risk assessments guide how much funding is available to support climate impacts and need to work out which women are worst affected.
Alien trees threaten biodiversity, increase the risk of wildfires and also guzzle water. Photo courtesy Cape Winelands Biosphere Reserve

Removing alien plants can save water: we measured how much

Alanna Rebelo, Agricultural Research Council; Karen Joan Esler, Stellenbosch University; Mark New, University of Cape Town, and Petra Holden, University of Cape Town

Clearing alien trees from mountain catchments is a more cost-effective approach to providing water than building and maintaining desalination plants.
Alien pine trees, which use substantially more water than the native vegetation of the Cape Mountains, reduce river flows to dams that supply the city’s water. Martin Kleynhans

Clearing alien trees can help reduce climate change impact on Cape Town’s water supply

Petra Holden, University of Cape Town; Alanna Rebelo, Agricultural Research Council; Joyce Kimutai, University of Cape Town; Kamoru Abiodun Lawal, University of Cape Town; Mark New, University of Cape Town; Piotr Wolski, University of Cape Town; Romaric C. Odoulami, University of Cape Town, and Tiro Nkemelang, University of Cape Town

Clearing alien trees before the drought hit could have reduced the impact of climate change on water supply during the ‘Day Zero’ drought.
A fire rages through wetlands close to Cape Town in February 2017. EPA/Nic Bothma

What science tells us about fire hazards facing Cape Town and its surrounds

Alanna Rebelo, Stellenbosch University; David Carlyle Le Maitre, Council for Scientific and Industrial Research; Mark New, University of Cape Town; Peter Johnston, University of Cape Town; Petra Holden, University of Cape Town; Tiro Nkemelang, University of Cape Town, and Tony Rebelo, South African National Biodiversity Institute

The danger of fires in the Cape region this season is partly dependent on how the Fynbos has been managed over the past few decades.

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