Sustainable Grocery Shopping

ping list organized by the sections or aisles of the store.

Shop Local and In Season

There are many ways to be environmentally responsible when shopping for food. Here are a few tips.

Bring Reusable Shopping Bags

Americans use approximately 100 billion single-use plastic bags each year, which accumulate in landfills and waterways and never truly decompose. Some states have banned disposable bags, but many still permit them. Come prepared to the grocery store with reusable bags to reduce the use of single-use plastics.

Shop the Perimeter

Food packaging and containers make up 23 percent of landfill waste.

Shop around the perimeter of the store as much as possible to find the freshest, healthiest foods with the least amount of packaging, such as produce, bulk items, dairy, fresh fish and meat. Bulk items like nuts, dry beans, coffee, tea and grains can be purchased in exactly the amount needed with no packaging.

Plan Ahead

The average American wastes about 21 percent of the food they buy, which equates to about $1,800 a year. To avoid overbuying and shrink the carbon footprint of multiple shopping trips, plan meals a week (or month) ahead and come with a shop-

Feng Shui Professional Certification

Local produce has a drastically smaller carbon footprint than fruits and vegetables that must travel long distances by truck, airplane or ship. Buying local, in-season produce reduces waste because the produce is fresher when purchased and will not spoil as quickly at home. If the family’s diet includes meats, choose pasture-raised, grass-fed products from farmers that practice regenerative organic agriculture, which improves the quality of the land and maintains local ecosystems.

Read Labels

Choose foods that were produced with the environment in mind by looking for the following labels, seals and certifications: n USDA Organic n Biodynamic (BDA) for food produced without chemical pesticides or herbicides, using organic, non-GMO seeds n Non-GMO Project Verified for foods that were not genetically engineered n FAIRTRADE Mark and Fair Trade Certified for food producers committed to reasonable wages and the safe, fair treatment of workers n Climate Neutral Certified for food manufacturers committed to reducing their greenhouse gas emissions n Safe Catch for sustainably caught fish n Aquaculture Stewardship Council (ASC) and Best Aquaculture Practices (BAP) for sustainably farmed seafood

Gas Stove Pollution Goes Unnoticed

A new study published in Environmental Science & Technology finds that gas stoves frequently leak dangerous pollutants into the kitchen. A team from PSE Health Energy collected samples from 159 gas stoves across California and sent them to a laboratory for analysis. The researchers found 12 pollutants in total, and four of these gases—benzene, toluene, hexane and m- or p-xylene—were present in 98 percent of the samples. Most of the stoves leaked at least a little, even when they were turned off.

The natural gas used in stoves is comprised mostly of methane and other hydrocarbons and gases. Before it is delivered into homes and business, most of the non-methane gases are removed and a strong-scented chemical is added to alert people to possible leaks. The leaks studied by the California researchers were not substantial enough for people to notice this rotten-egg smell, but they could still expose users to harmful and potentially cancer-causing pollutants. Those with gas stoves are encouraged to turn on their exhaust fans whenever they are in use.

Invasive Wild Hogs Pose Numerous Threats

There are approximately 6 million non-native, feral pigs in the United States. They destroy an estimated $2.5 billion in crops, pastures, forests and livestock each year across 35 states and jeopardize endangered species, including the Florida panther, green sea turtles and red-cheeked salamanders. But their greatest threat may be the potential to carry disease to humans, domesticated hogs and other animals.

The pigs were brought to the Americas from Europe as early as the 1500s. They reproduce quickly, with up to two litters of four to 12 piglets every 12 to 15 months, and can grow to be five feet long and weigh more than 500 pounds.

Feral swine can carry a long list of pathogens, including leptospirosis, brucellosis, swine influenza, salmonella, hepatitis and pathogenic E. coli. The U.S. Department of Agriculture describes swine as a “mixing vessel species”, meaning that they are susceptible to human viruses and have the ability to create novel forms of those diseases. Human risk to known and new pathogens is greater from feral swine than other wildlife due to our proximity to them and their large numbers. Hunters and farmers are at greatest risk. Anyone that handles feral swine should wear rubber gloves and avoid fluid exchanges.

Rebuilding Coral Reefs With Sound

Rapid ocean warming and other effects caused by climate change have stressed and degraded corals around the globe, and scientists have been studying ways to rebuild, manage and conserve these vital ecosystems. A new Australian study published in Journal of Applied Ecology tested whether playing certain sounds underwater at reef restoration sites could boost the recruitment of oysters and enhance their habitat-building activities. Australia’s flat oyster is a key reef-building organism targeted for restoration efforts.

Previous studies had shown that the sound of healthy reefs differs from that of damaged reefs. Using inexpensive marine speakers, the researchers reproduced the sound of a healthy reef at four sites across two of the largest oyster reef restorations in Australia and compared the results to areas that did not receive this soundscape enrichment. The sonically enhanced areas resulted in the presence of more and larger oysters that formed more three-dimensional habitats atop the reef restorations. The scientists propose that the use of marine soundscapes during early stages of new reef restoration projects could reduce the cost of habitat recovery.

Lowering the Carbon Footprint of Batteries

A Swedish battery manufacturer, Northvolt, in partnership with Stora Enso, one of the largest private forest owners in the world, has developed a battery for electric vehicles (EV) with an anode made of sustainably raised and harvested wood instead of graphite, paving the way for battery production from a renewable source.

The partners figured out a way to extract lignin, a carbon-rich natural binder that comprises up to 30 percent of many trees, and turn it into a material they call Lignode. According to Stora Enso, by replacing graphite or copper anodes with Lignode, lithium-ion batteries will offer faster charging and discharging, higher cycling stability and more efficient performance in low temperature.

More than 50 percent of the EV’s carbon footprint comes from the manufacture of its battery— both in sourcing raw materials and producing the component. Mining graphite is an expensive and labor-intensive process that requires considerable resources that come from parts of the world where workers’ rights are inadequately protected. While Northvolt’s battery is not on the market yet, this development, along with others like solid-state batteries, may help to reduce the carbon footprint of EVs.

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