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NEWS: Coastal wetlands are unable to adapt to the rate of sea-level rise and are constrained by infrastructure

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Wetlands, precious ecosystems that shield coastlines, safeguard drinking water from saltwater contamination, and nourish diverse wildlife, face a dire threat from the accelerating pace of sea-level rise, driven by global warming. Wetlands have historically adapted to rising sea levels by expanding upward and inland. However, predictions indicate that the waterline will soon shift far too rapidly for wetlands to keep pace. Consequently, future decades may witness the tragic loss of these vital wetland ecosystems. Wetlands along coastlines have historically played valuable roles for people and wildlife, but are now facing the threat of sea-level rise. As temperatures rise, sea levels are rising at an accelerating rate, and wetlands are unable to keep pace by building upward and migrating inland. This is due to human-induced climate change and the burning of fossil fuels, which has warmed the oceans and melted glaciers. Sea levels are now rising at about 10 millimeters per year, and are
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Is it time SA government reconsiders its participation on Inga III Project?

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South Africa has talked of securing as much as 2.5GW from Inga III project. But a recent report reads "for South Africa to buy power from the Inga III project would be “risky and may be more expensive” than other sources"

With the current economic challenges facing our country i.e. Covid- 19, recession and Junk status is it time for Government to reconsider its involvement on the Inga III Project? What would be the implications?

Report criticises South Africa’s Inga folly

The report from the Congo Research Group and Phuzomoya Consulting described South Africa’s policy towards the Inga project as “contradictory”, given the desire to follow a pan-African ideology contrasting with the country’s actual needs.

For South Africa to buy power from the Inga III project would be “risky and may be more expensive” than other sources. Without South Africa as an anchor client, the hydropower plan appears marginal.

The Inga site could be the world’s largest hydropower site, with the Congo River dropping by 96 metres over 14 km, with an estimated total capacity of 40 GW.

Two dams have been built there, in the 1970s and 1980s, and a new consortium for the third phase was brought together in 2004. Various proposals were under consideration but the most recent iteration, put forward by Congolese President Felix Tshisekedi scales down the Inga III project to 4.8 GW, following scepticism from the African Development Bank (AfDB).

One of the construction members, Spain’s Actividades de Construccion y Servicios (ACS), was reported by Bloomberg in January as saying it would not continue participating in the Inga III plan.

While South Africa’s plans include supplies from the Congolese power plant, the cost seems to be high and play a part in increasing tariffs by around 5% by 2030. Heavily indebted Eskom has also raised concerns about Inga III and the cost of constructing a link from the site to its own networks, which may cost around $1bn. This may be an under estimate, with other estimates quoted in the report as putting this at closer to $4bn.

The original treaty expires in 2021 and construction of the plant is needed to begin by 2023 in order for power supplies to South Africa to begin in 2030. While the plan may have political support, the numbers and timing look like a challenge.

This article was first published here

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