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The analysis finds that investing in nature-based infrastructure (NBI) in Drakenstein, South Africa, can reduce flood damages by up to USD 36 million against costs of USD 8.65 million over 25 years. The study indicates a benefit-cost ratio of up to 5:1 (ZAR 5 return for every ZAR 1 invested), with net benefits reaching ZAR 600 million (USD 34.2 million). These benefits include avoided flood damages, job creation, and improved mental health, with NBI proving most valuable in climate scenarios characterized by frequent and intense floods.

The report argues that the cost of inaction regarding climate change for Florida is immense, projecting annual costs of $345 billion by 2100 across four major categories: tourism, hurricane damages, residential real estate, and electricity. Under a 'business-as-usual' scenario, Florida faces a 10°F temperature increase and 45 inches of sea-level rise by 2100, which would inundate 9% of its land area and severely disrupt key industries like agriculture and fisheries. The authors contrast this with a 'rapid stabilization' case, where immediate global emissions reductions limit warming to 2°F and sea-level rise to 7 inches by 2100.