*7.5. Emissions Reductions*

Methane accounts for 16 per cent of global greenhouse gas emissions, and it is very strong—about 30 times more powerful than carbon dioxide, a greenhouse gas. Sludge-to-energy systems harness this methane for energy instead of allowing it to escape into the atmosphere where climate change will be fueling. Although methane releases carbon dioxide when harnessed for energy, if methane-rich biogas is used instead of fossil fuels, the net emissions are negligible [35].
