Climate change should factor in the 2024 election as El Niño heads SA’s way

“My son always jokes, one day we’ll [visit you] in the old age home, and I’ll say, so did we finally create robust systems?” said Prof Coleen Vogel, a climatologist from the Global Change Institute at Wits University during a Daily Maverick webinar last week.

“But we’ve got to keep on going, right? Despite all the challenges that we have.”

https://www.youtube.com/watch?v=NKlwpnaKeK8

Vogel, whose research has a particular focus on disaster risk reduction and climate variability, and who was a key contributor to the writing of the Green and White Papers on South African Disaster Management, was speaking about creating disaster risk reduction systems in the face of extreme weather events that are increasing in frequency and intensity under climate change.

Vogel was joined by science writer Leonie Joubert, who has nearly 25 years of experience writing about climate change and food security issues, to discuss how the upcoming weather phenomenon, El Niño, would impact SA cities and how best we can prepare.

El Niño and its opposite, La Niña – Spanish for “little boy” and “little girl” – are opposing weather patterns that originate in the Pacific Ocean and have global effects that typically run in a three to seven-year cycle.

https://www.youtube.com/watch?v=WPA-KpldDVc

Read more in Daily Maverick: Here comes El Niño – and experts warn South Africa to ‘be prepared for the worst

South Africa is coming out of a three-year La Niña cycle, which is typically the “wetter” period for SA, and this summer it is predicted we will see the effects of El Niño, the “dryer” period.

“When this warm, moist air starts to rise into the atmosphere – very far away from us – what goes up must come down,” said Vogel, one of the lead authors of the African chapters in multiple Intergovernmental Panel on Climate Change reports.

“And, unfortunately for us in South Africa, when some of that air comes down, it tends to dry out. And so we can get drought periods.”

Joubert, who has spent 20 years speaking with communities vulnerable to these impacts, explained that while El Niño seasons usually mean higher temperatures and overall drought conditions across the summer rainfall regions of southern Africa, extreme rain events – rain “bombs” – can still occur. This can result in flooding, the likes of which were seen in Durban in April 2019, an El Niño year, and repeated even more severely in April 2022, a La Niña year. 

Joubert highlighted how, with the Durban floods, the historical inequalities of apartheid spatial planning mean that much of SA’s built environment is not set up to withstand these climate events.

“The poorest people have usually been pushed into the most marginal areas. And with informality, people are forced to build in very high-risk areas like floodplains. And this perpetuates the inequality,” said Joubert.

She said that, as with many extreme weather events, we can anticipate them and prepare.

In the case of the 2022 Durban floods, “The flooding was extreme, but it wasn’t unprecedented,” said Joubert.

“What made this incredibly damaging was that these rain bombs were hitting this very specific landscape. So there’s a huge amount to be learned from this. Cities need to be more resilient against these kinds of flood events.”

Compassion fatigue