Abstract

The authors describe research into technological means for addressing two consequences of climate change for coral ocean acidity and increasing sea surface temperatures leading to coral bleaching. Technology for a multi- integrated response is proposed. Sea surface temperatures can be monitored via satellite and on-line telemetry. Technology for moderating sea surface temperature spikes is based on pumping deeper cool seawater over coral reefs. The technology proposed includes plastic collapsible pipelines that can be deployed like oil spill booms with flat disc pumps and renewable energy devices (tidal turbines) to power the pumps. The technology for counteracting increasing ocean acidity on coral reefs is based on the Accelerated Weathering of Limestone (AWL). It is proposed that an acceleration of the natural process that restores the carbon balance, can be realized using a modified electrolyzer powered by renewable energy. The AWL process sequesters CO₂ and produces H₂ while generating a buffer solution that increases reef pH and also provides alkalinity to feed reef and shellfish calcification. The AWL buffer solution will be distributed where required using the same renewable energy powered pumps and pipelines as used to mitigate sea surface temperature spikes. The AWL process will operate continuously but can be interrupted whenever the pumps and collapsible pipes are required to avoid potential coral thermal bleaching events. Dual use improves affordability.