This article is about the waste that goes to dumps and landfills in 2007. As you can see, food waste is pretty much the biggestest contendor, other than plastic.
This image shows a landfill full of garbage. Everything and anything that has been throw away. It mentions that despite the cost of food rising, food waste still hasn't diminished it actually has grown.
They compare the amount of food waste that is thrown out each year as the "equivalent" of throwing away 350 billion barrels of oil away. It says Americans could save about 2% of its total energy consumption in a year if we would be more careful about food waste.
This article and chart shows how things are being thrown out now and how many Americans are malnourished. We drink less water as well compared to years ago. Also, it shows how there are 24 moillion acres of forests destroyed to make room for more food waste.