Debate is heating up over how to calculate the proportion of greenhouse gas emissions from meat and dairy production, with ongoing disagreement among academics over varying study methodologies.
Climate change is already affecting American food production, according to a report from the US Department of Agriculture (USDA), released to coincide with the Copenhagen climate change summit.
In a bid to push processors and other manufacturers to reduce their
greenhouse gas emissions, the UK government yesterday unveiled a
proposal to put "carbon footprint" labels on all products.