Buy local foods and help our environment. Another good way to help our environment and our economy is to help out our local agriculture.
In the United States (and probably around the world) we have so evolved in our food production and distribution so that there are many local food producers who feed the few and a few very large food producers who feed the vast majority. Though this model often keeps food prices low and uniform (though even that can be disputed), it also requires a vast quantity of fossil fuels (which warm the planet) to transport and in my opinion create a very dangerous dependency on a few food products (like wheat, corn, rice, soybeans, and a few others) which work against the need for biodiversity in our planets flora system.
Buying from local agriculture can help alleviate this propensity to depend of a few large agriculture corporations and sustain our environment—and maybe even give jobs to your locality. Not to mention, you can probably walk to your local farmer’s market and move food production away from a dependency on fossil fuels. Check out Monroe village Farmers' Market. Farmers' Market "Monroe Village Farmers’ Market Wednesday Evenings 4:30 to 7:30 June 18th to October 29th Blessed Sacrament Church Parking Lot Monroe Avenue Between Rutgers and Oxford Enjoy local musicians and artists in a fun community atmosphere." --from Monroe Village