The Times Australia
The Times World News

.

Peter Singer on climate change

  • Written by Peter Singer, Professor of Bioethics in the Center for Human Values, Princeton University
Peter Singer on climate change

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[1]

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[2].

If you enjoy getting to know and support your local farmers, of course, eating locally makes sense. But if your aim is, as many local eaters said, to reduce greenhouse gas emissions, you would do much better by thinking about what you are eating, rather than where it comes from. That’s because transport makes up only a tiny share[3] of the greenhouse gas emissions from the production and distribution of food. With beef, for example, transport is only 0.5% of total emissions. So if you eat local beef you will still be responsible for 99.5% of the greenhouse gas emissions your food would have caused if you had eaten beef transported a long distance. On the other hand, if you choose peas you will be responsible for only about 2% of the greenhouse gas emissions from producing a similar quantity of local beef. And although beef is the worst food for emitting greenhouse gases, a broader study of the carbon footprints of food across the European Union showed that meat, dairy and eggs accounted for 83% of emissions, and transport for only 6%. More generally, plant foods typically have far lower greenhouse gas emissions than any animal foods, whether we are comparing equivalent quantities of calories or of protein. Beef, for example, emits 192 times as much carbon dioxide equivalent per gram of protein as nuts, and while these are at the extremes of the protein foods, eggs, the animal food with the lowest emissions per gram of protein, still has, per gram of protein, more than twice the emissions of tofu. Animal foods do even more poorly when compared with plant foods in terms of calories produced[4]. Beef emits 520 times as much per calorie as nuts, and eggs, again the best-performing animal product, emit five times as much per calorie as potatoes. Favourable as these figures are to plant foods, they leave out something that tilts the balance even more strongly against animal foods in the effort to avoid catastrophic climate change: the “carbon opportunity cost” of the vast area of land used for grazing animals and the smaller, but still very large, area used to grow crops that are then fed — wastefully, as we have seen — to confined animals. Because we use this land for animals we eat, it cannot be used to restore native ecosystems, including forests, which would safely remove huge amounts of carbon from the atmosphere. One study has found that a shift to plant-based eating would free up so much land for this purpose that seizing the opportunity would give us a 66% probability of achieving something that most observers believe we have missed our chance of achieving: limiting warming to 1.5℃. Another study has suggested that a rapid phaseout of animal agriculture would enable us to stabilise greenhouse gases for the next 30 years and offset more than two-thirds of all carbon dioxide emissions this century. According to the authors of this study: The magnitude and rapidity of these potential effects should place the reduction or elimination of animal agriculture at the forefront of strategies for averting disastrous climate change. Read more: 'It can be done. It must be done': IPCC delivers definitive report on climate change, and where to now[5] Climate change is undoubtedly the biggest environmental issue facing us today, but it is not the only one. If we look at environmental issues more broadly, we find further reasons for preferring a plant-based diet. Smoky landscape photo, fire consumed land recently deforested by cattle farmers near Novo Progresso, Para state, Brazil. Fires in the Amazon and linked to cattle ranching. Andre Penner/AP Photo[6] 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[7] 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[8] by Peter Singer (Penguin Random House). References^ Peter Singer's fresh take on Animal Liberation – a book that changed the world, but not enough (theconversation.com)^ “word of the year” for 2007 (blog.oup.com)^ transport makes up only a tiny share (ourworldindata.org)^ in terms of calories produced (ourworldindata.org)^ 'It can be done. It must be done': IPCC delivers definitive report on climate change, and where to now (theconversation.com)^ Andre Penner/AP Photo (photos.aap.com.au)^ 38,700 farms and 1,600 food processors (www.science.org)^ Animal Liberation Now (www.penguin.co.uk)

Read more https://theconversation.com/we-are-gambling-with-the-future-of-our-planet-for-the-sake-of-hamburgers-peter-singer-on-climate-change-207605

Times Magazine

Choosing the Right Legal Aid Lawyer in Sutherland Shire: Key Considerations

Legal aid services play an essential role in ensuring access to justice for all. For people in the Sutherland Shire who may not have the financial means to pay for private legal assistance, legal aid ensures that everyone has access to representa...

Watercolor vs. Oil vs. Digital: Which Medium Fits Your Pet's Personality?

When it comes to immortalizing your pet’s unique personality in art, choosing the right medium is essential. Each artistic medium, whether watercolor, oil, or digital, has distinct qualities that can bring out the spirit of your furry friend in dif...

DIY Is In: How Aussie Parents Are Redefining Birthday Parties

When planning his daughter’s birthday, Rich opted for a DIY approach, inspired by her love for drawing maps and giving clues. Their weekend tradition of hiding treats at home sparked the idea, and with a pirate ship playground already chosen as t...

When Touchscreens Turn Temperamental: What to Do Before You Panic

When your touchscreen starts acting up, ignoring taps, registering phantom touches, or freezing entirely, it can feel like your entire setup is falling apart. Before you rush to replace the device, it’s worth taking a deep breath and exploring what c...

Why Social Media Marketing Matters for Businesses in Australia

Today social media is a big part of daily life. All over Australia people use Facebook, Instagram, TikTok , LinkedIn and Twitter to stay connected, share updates and find new ideas. For businesses this means a great chance to reach new customers and...

Building an AI-First Culture in Your Company

AI isn't just something to think about anymore - it's becoming part of how we live and work, whether we like it or not. At the office, it definitely helps us move faster. But here's the thing: just using tools like ChatGPT or plugging AI into your wo...

The Times Features

Benefits of Tree Pruning for a Thriving Australian Garden

Tree pruning is an essential aspect of garden maintenance that often doesn't get the attention it deserves. It's a practice that involves the selective removal of certain parts...

What is psychosocial therapy? And why is the government thinking about adding it to Medicare for kids?

The government is considering new, bulk-billed health checks for three-year-olds, to pick up developmental concerns and refer kids that might need additional support. The de...

Detect Hidden Water Leaks Fast: Don’t Ignore Hot Water System Leaks

Detecting water leaks early is crucial for preventing extensive damage to your home. Among the various parts of a home’s plumbing system, hot water systems are particularly suscept...

Why do hamstring injuries happen so often and how can they be prevented?

In a recent clash against the Melbourne Storm, the Brisbane Broncos endured a nightmare rarely seen in professional sport — three players tore their hamstrings[1] in a single g...

What Is the Australian Government First Home Buyers Scheme About?

For many Australians, buying a first home can feel like a daunting task—especially with rising property prices, tight lending rules, and the challenge of saving for a deposit. ...

How artificial intelligence is reshaping the Australian business loan journey

The 2025 backdrop: money is moving differently If you run a small or medium-sized business in Australia, 2025 feels noticeably different. After two years of stubbornly high bo...