HLC (Hemp Lime Composite) has no equal as a natural building product sequestering carbon dioxide for the life of the building. By combining water, hemp aggregate and lime-based binder to produce excellent thermal insulating and acoustic properties, HLC is not just an insulator - it buffers temperature and humidity, prevents damp and mould growth, making inside the building a comfortable healthy environment. It is fire and termite resistant, lightweight and forms a hard wall surface yet is vapour permeable to help reduce humidity and prevent condensation - a truly amazing natural product.
People that live in HLC houses do not need to run airconditioners all day to keep a comfortable home. Regular insulation requires constant energy input - HLC doesn't. The way energy costs are rising, that's a massive yearly cost saving through power conservation. At the same time, less energy use, less pollution AND carbon sequestration by HLC - your project could be carbon-neutral, even carbon negative with HLC.
To read more about HLC in the Tropics see this: