Floating Wetlands Cut Methane Emissions by 66% in Australian Wastewater Trial
In 2023, Australia installed a 330-square-metre floating wetland on a wastewater lagoon to test its environmental impact. Over two years, researchers found the system reduced methane emissions by 66%, along with measurable drops in carbon dioxide and nitrous oxide levels. Native plants grown on the floating platforms play a key role by fostering beneficial microbes that break down pollutants and greenhouse gases. The approach marks a significant step forward in sustainable wastewater treatment technology. Similar floating wetlands are now being tested on regional agricultural dams to assess broader applications.
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