The trials underscore the potential for geoengineering to slow Arctic ice melt, but they also reveal significant uncertainties. Increased salinity and porosity in thickened ice could lead to faster melting, potentially negating the benefits of the process. The environmental impact on Arctic ecosystems, including ice algae, polar bears, and seals, remains unclear. Critics argue that such interventions may distract from the urgent need to reduce greenhouse gas emissions. While localized thickening may offer temporary relief, scaling the technology to cover larger areas poses logistical and environmental challenges.