Believe it or not, the fuzzy leftover you just scraped into the compost is a hopeful sign. It’s proof of slack in our system: food you paid for, lost track of, and can simply eat next time, no extra effort or sacrifice required. Earth Overshoot Day on July 30 raised the alarm that our global appetite outruns what nature can renew. The date comes from the Global Footprint Network, which each year estimates how quickly the world draws down renewable resources—water, cropland, forests, fisheries—and compares that against how quickly nature restocks them. By their tally, we used up this year’s natural income last Thursday and are now dipping into our savings yet again. You can quarrel with the exact day we overshoot Earth’s annual regenerative production; it’s harder to quarrel with the idea that food (and the land, water, and energy required to produce it) is a resource we can stop squandering.

This week’s step is along the Food pathway: how we meet our needs for food, one of the seven pathways to a sustainable world, and one that touches your day most directly. (Deciding what to do with what we throw away also draws on the Goods pathway: sustainable consumption and waste.) Our focus this week is to stop good food from spoiling before getting around to eating it.

About one third of all the food produced for people worldwide is never eaten. In the United States, the EPA estimates that stores, restaurants, and households threw out roughly 66 million tons of food in a single year, and close to 60% of it went straight to a landfill—more than any other material in the trash. Only about 5% was composted.

Wasting food wastes far more than the calories and vitamins in it. Every uneaten apple represents water that grew it, energy that shipped and chilled it, fertilizer and land it came from—all spent for nothing. Prevent food waste, and you recover all of that upstream effort as part of the deal. Project Drawdown ranks reducing food loss and waste among the most effective and fastest-acting practices available for protecting our planet.

There’s a baser benefit too. When the EPA tallied the receipts, they found a typical four-person household throws away about $2,913 of food a year—roughly $56 every week. That is real money back in your pocket if you can stop that waste.

Here’s the most encouraging part: household food waste is due mostly to poor tracking. You buy food with good intentions, push it to the back of the shelf, forget it behind the condiments, then toss it because a date on the package looks alarming. Fix the losing-track-of-it problem, and you solve most of your food waste.

Here are three ideas you can try.

Start by shopping your own kitchen first. Before you head to the store, open your fridge, check your produce drawer, and scan your pantry. Then plan your next meals around what’s already there and what’s about to turn. Buying food based on what you actually need, instead of what you imagine needing, is the difference between groceries eaten and groceries composted.

Second, give all your food a fighting chance to be seen before its day is done. Clear one shelf at eye level and make it your “eat-first” zone. Anything near the end of its life—the half-used carton, the leftovers, the berries on the edge—moves there. Out of sight really is the enemy; a single visible shelf is an effective intervention.

Finally, trust your eyes and nose over the calendar. Most date labels—”best by,” “sell by”—are quality dates set by manufacturers, not safety deadlines. The FDA notes that plenty of food is perfectly good to eat after its “best by” date. Yogurt, eggs, bread, and hard cheese often outlast their printed dates by a comfortable margin. Learning to tell “past its prime” from “actually spoiled” saves food from an early and unnecessary trip to the compost bin.

Your one step this week

Try clearing one shelf in your fridge and label it “eat first.” Move everything that needs to be eaten in the next few days—leftovers, the opened jar, the produce on the turn—onto it, front and center. Then, before your next grocery run, plan two meals around what’s sitting there. Remember one shelf, two meals, and a quick peek in the fridge before you shop.

It’s a modest habit, but it’s one of the highest-leverage actions an ordinary household can take to ease the strain on Earth’s resources. If you’d like to go further, Sustainable Practices: Your Handbook for Effective Action and www.suspra.com map how the Food pathway connects to water, energy, and the rest of your footprint. Our One Step newsletter archive at www.SustainablePractice.Life also has more ways to shrink waste without shrinking your enjoyment of life.

When you can’t save it, keep it out of the landfill

Even in a well-run kitchen, some scraps are unavoidable: peels, pits, coffee grounds, eggshells, and the occasional leftover that gets away from all of us. For those, the goal shifts from preventing waste to don’t bury it in plastic. Composting instead of landfilling turns that organic material into healthy soil instead of harmful methane.

If you don’t already compost, a second sustainable step this week could be to make a plan to do so. Composting has its own moment in our annual calendar of sustainable practices—International Compost Awareness Week each May—but you don’t have to wait for it. Prevent what you can this week, find a way to compost the rest, and all the food you buy will stop feeding landfills and start feeding people and the soil that sustains us.

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