"Eating less meat and wasting less food can play a big part in helping to keep a lid on greenhouse gas emissions as the world's population increases," asserts Reay.
Here's the thing; for a very large proportion (about 40% to 50%) of the world's population, there is little choice - meat is just too expensive to eat and the people rely upon grains or pulses for their diet. Those same people won't throw ANY food away, because even if it is totally rotten, it will still be better than the alternative (which for the hard of thinking is starvation).
Those of us in the Western World have the option to buy whatever we want, at any time of year, as we have access to food at a reasonable cost through supermarkets that encourage us to buy large quantities, and obscene amounts of this then end up in landfill. I've said this before, but I am sometimes embarrassed at the amount of food produced that is wasted compared to what some people in the third world actually get to eat.
On one occasion when I was on holiday abroad in a third world country , I spent some time haggling with a shop keeper (spent quite a bit of money but really tied him down on price). Afterwards, he invited me to his house eat with his family; I couldn't refuse as this would have been an insult in that culture.
His wife was delightful, and his children were incredible; the food was really well prepared, but it was a basic salad with some rice, and the amount each had was reduced because I was their guest. Each plate had about two thirds the amount of a normal plateful full that I would have prepared. I felt awful as I was literally taking food out of the mouths of the children. (I went back the next day with some bags of sweets which I gave to the shop keeper as a thank you for the children).
I have no issue with people eating well; i just think that people in the west don't realise just how damn lucky we are. As the world's population increases, we may one day find that we are in a position where we simply cannot afford to buy meat.
I grew up in the period just after the war, and even if rationing had ended, there was still a culture of being careful about what you ate and especially what you threw away. Perhaps we should return to being a little more sensible about what we eat.