This is the hi-tech version which is great.
But we want a method for a smaller scale that anyone can make with low or no budget. They don't need to last forever.
rnz.co.nz
Can floating wetlands be used to cut emissions?
Researchers believe a floating garden of native Australian plants on a wastewater lagoon in Victoria's east could help tackle greenhouse gas emissions, after it cut the lagoon's emissions by about 30 ...
