This is from the UN Environmental Programme. It’s a fair reading of the available data, which indicates that changes in two sectors, animal agriculture and the burning of fossil fuel, are the keys to avoiding catastrophic climate change. This report goes public in the week that the world also surpassed the 400 ppm level of CO2.
This is a major health policy issue, ultimately dwarfing those that absorb more of our attention at the moment.
As the global population surges towards a predicted 9.1 billion people by 2050, western tastes for diets rich in meat and dairy products are unsustainable, says the report from United Nations Environment Programme’s (UNEP) international panel of sustainable resource management.
It says: “Impacts from agriculture are expected to increase substantially due to population growth increasing consumption of animal products. Unlike fossil fuels, it is difficult to look for alternatives: people have to eat. A substantial reduction of impacts would only be possible with a substantial worldwide diet change, away from animal products.”
Professor Edgar Hertwich, the lead author of the report, said: “Animal products cause more damage than [producing] construction minerals such as sand or cement, plastics or metals. Biomass and crops for animals are as damaging as [burning] fossil fuels.”