There are several ways to simulate reducing waste and inefficiencies in En-ROADS, depending on the type of waste (e.g. food waste or energy loss) and sector. Some of the sliders that simulate waste management are the following: 

Reduce food waste: Use the “Food waste” slider in the Agricultural Emissions advanced view. This reduces emissions and cropland expansion as a result of less food demand. 

Reduce waste going to landfills and wastewater: Use the “Methane and nitrous oxide from waste” slider in the Waste and Leakage advanced view. This simulates reductions in the amount of total waste (e.g., through composting biological material rather than putting it in the landfill), as well as reducing the amount of methane and N2O released per ton of waste (e.g., through improved wastewater treatment). 

Prevent energy loss and improve efficiency: Use the Buildings and Industry Energy Efficiency and Transport Energy Efficiency sliders to reduce energy loss, such as insulating buildings so that less heat escapes in the winter, or driving a hybrid car in which some of the energy from braking charges the battery. Similarly, these sliders also simulate improvements in energy efficiency, using less energy to produce goods and services. These actions all reduce overall energy demand.

Turn waste into energy: Use the “Waste/other feedstocks for bioenergy (tax/subsidy)” slider in the Bioenergy advanced view. This simulates a tax/subsidy on waste feedstocks (e.g., manure or crop residues) for bioenergy production.