In 2023, Australia put a 330-square-metre floating wetland on a wastewater lagoon

Australia installed a 330-square-metre floating wetland on a wastewater lagoon in 2023. Research conducted over two years found that the wetland reduced methane emissions by 66%, along with notable reductions in carbon dioxide and nitrous oxide.

Native vegetation on the floating platforms supports microbes that help tackle pollutants and gases. Researchers are continuing to test similar floating wetlands in regional agricultural dams.