Scientists have uncovered the true cost of a loaf of bread and the planet is paying a dear price.
Bread has four main ingredients: flour – yeast – salt and water.
The wheat is first grown and harvested – then the grains milled to make the flour — all this before the ingredient is processed packaged and ready to bake.
A standard loaf of bread contains about 16 ounces of flour and this is what has the biggest impact on the environment – according to the new research.
The researchers looked at every aspect of bread manufacturing – analyzing the whole life cycle of a loaf from growing the wheat to packaging the bread and transporting it to the shop.
They found that nearly 66 percent of the emissions came from growing the wheat: tilling the soil – harvesting and irrigation all require emissions-producing machinery.
But a whopping 43 percent of the greenhouse gases produced came from using fertilizer to grow the crops.