An alarming new report estimates that between 30 and 50 percent of all the food produced in the world is lost and wasted. This is a shocking finding given the scale of malnourishment and hunger on our planet.

While it is tempting to blame governments for this appalling state of affairs, the truth is that almost all of us contribute to this problem. While governments must do the lion's share of the work, individual citizens can also help to reduce loss, waste and hunger.

The new report is by the Institution of Mechanical Engineers, a British-based independent organization. The two-year study concluded that about half of the 4.4 billion tons of food that is produced worldwide annually is never eaten.