For Week 2 of Earth Month Challenge, we’re taking a look at food waste.In the U.S. alone, food waste is estimated at between 30-40 percent of all food produced. Wasted food is the largest contributor of material placed in landfills, which produces approximately 15% of all methane emissions. The water, energy, and labor used to produce wasted food could have been directed for other purposes. Not to mention the nourishment that is wasted that could have gone to feed families in need.