Along with affecting our faith and finances and health, food has a big impact on God’s creation. Agriculture and food practices cause more than 25 percent of greenhouse gas (GHG) emissions due to nitrous oxide from fertiliser, cutting forests for farming, methane from animals, burning crop residue, fuel for farms or transport, refrigeration, packaging and more. Meat is especially impactful, as it causes about 60 percent of the food system’s GHG emissions. Moreover, food waste causes about 8 percent of global GHG emissions.
Here in Singapore, more than 90 percent of food is imported and 813,000 tonnes of food is wasted annually. The food system contributes up to 29 percent of GHG emissions.
While we may think that what we do doesn’t make a difference, analysis by Project Drawdown showed that our individual actions can generate 25–30 percent of the total emissions reductions needed to avoid dangerous climate change. The actions with the highest impact among Drawdown’s top 20 for individuals are eating a plant-rich diet and reducing food waste.
If we care about creation and ourselves, then, we need to change what and how we eat.
Adopting a healthy Mediterranean-style diet rich in grains, vegetables, nuts and moderate amounts of fish and poultry can be effective in reducing emissions, the IPCC found. Researchers from Oxford University similarly found that transitioning toward plant-based diets could cut food-related GHG emissions by 29–70 percent and reduce deaths by 6–10 percent.
Swapping higher-carbon food for lower-carbon alternatives, such as having plant-based or poultry rather than beef or dairy just once a day, can reduce your dietary carbon footprint by more than 35 percent. Apps such as Impact Score can help with choosing foods with less climate impact.
Eating or freezing leftovers rather than throwing them away has a massive impact too. When we finish our meals, then, we should not waste the leftovers. As we’re reminded in the story of the feeding of the 5,000 in John 6, “When they had all had enough to eat, He said to his disciples, “Gather the pieces that are left over. Let nothing be wasted.”