Peter Singer on climate change
- Written by: Peter Singer, Professor of Bioethics in the Center for Human Values, Princeton University
I wasn’t aware of climate change until the 1980s — hardly anyone was — and even when we recognised the dire threat that burning fossil fuels posed, it took time for the role of animal production in warming the planet to be understood.
Today, though, the fact that eating plants will reduce your greenhouse gas emissions is one of the most important and influential reasons for cutting down on animal products and, for those willing to go all the way, becoming vegan.
Read more: Peter Singer's fresh take on Animal Liberation – a book that changed the world, but not enough
A few years ago, eating locally — eating only food produced within a defined radius of your home — became the thing for environmentally conscious people to do, to such an extent that “locavore” became the Oxford English Dictionary’s “word of the year” for 2007.
Fires in the Amazon and linked to cattle ranching.
Andre Penner/AP Photo
The clearing and burning of the Amazon rainforest means not only the release of carbon from the trees and other vegetation into the atmosphere, but also the likely extinction of many plant and animal species that are still unrecorded.
This destruction is driven largely by the prodigious appetite of the affluent nations for meat, which makes it more profitable to clear the forest than to preserve it for the indigenous people living there, establish an ecotourism industry, protect the area’s biodiversity, or keep the carbon locked up in the forest. We are, quite literally, gambling with the future of our planet for the sake of hamburgers.
Joseph Poore, of the University of Oxford, led a study that consolidated a huge amount of environmental data on 38,700 farms and 1,600 food processors in 119 countries and covered 40 different food products. Poore summarised the upshot of all this research thus:
A vegan diet is probably the single biggest way to reduce your impact on planet Earth, not just greenhouse gases, but global acidification, eutrophication, land use and water use. It is far bigger than cutting down on your flights or buying an electric car, as these only cut greenhouse gas emissions.
Poore doesn’t see “sustainable” animal agriculture as the solution:
Really it is animal products that are responsible for so much of this. Avoiding consumption of animal products delivers far better environmental benefits than trying to purchase sustainable meat and dairy.
Those who claim to care about the wellbeing of human beings and the preservation of our climate and our environment should become vegans for those reasons alone.
Doing so would reduce greenhouse gas emissions and other forms of pollution, save water and energy, free vast tracts of land for reforestation, and eliminate the most significant incentive for clearing the Amazon and other forests.
This is an edited extract from Animal Liberation Now by Peter Singer (Penguin Random House).
Authors: Peter Singer, Professor of Bioethics in the Center for Human Values, Princeton University 
