Methane & Other Gases¶
Decrease or increase greenhouse gas emissions from methane, nitrous oxide, and the f-gases. Methane is released from sources like cows, agriculture, natural gas drilling, and waste. Nitrous oxide comes from fertilizers. The f-gases, includes HFCs, PFCs, and others that are used in industry and consumer goods like air conditioners.
- Decreased meat consumption.
- Modified agricultural practices such as increasing digestion of manure and decreasing fertilizer use.
- Decreased leakage from oil and gas industries.
- Increased capturing of gases emitted from landfills.
- Research and development on substitutions for f-gases (e.g. SF6 and HFC) in industrial processes.
- Reducing methane, nitrous oxide, and the f-gases is high leverage, although many approaches to reducing these emissions need more research and support to scale up.
- Watch temperature increase fall as emissions of methane, N2O, and F-gases fall. They comprise 30% of current greenhouse gas emissions and are very important in addressing climate change.
Potential Co-Benefits of Decreasing Methane & Other Gases¶
- Plant-based diets have been shown to be healthier for individuals and have less impact on ecosystems.
- Sustainable and plant-based agriculture produces more food with fewer resources, which increases food security.
- Reduced leakage from natural gas systems can save money.
- Less nitrogen-rich fertilizer run off can reduce water pollution, decrease eutrophication, and increase marine health.
- Many cultural values are attached to certain foods, meaning change to more plant-based diets could require a large societal shift.
- Policies implemented without care may threaten food security for certain individuals and communities. For example, rice paddies, a large methane contributor, are a main dietary staple for many countries.
- Local economies and employment can be threatened in communities which currently rely on industrial, large-scale farming practices as their main livelihood.
|highly reduced||moderately reduced||status quo|
|Percent reduction or increase of maximum action||-100% to -50%||-50% to 0%||0% to +10%|
The model limits how much these emissions can be reduced, since some are considered unavoidable, particularly those from agriculture, landfills, and wastewater.