Combat climate change with your savings account

Your dog's dinner bowl and your bank account have more in common than you might think. Both choices carry a carbon cost that most of us have never been asked to look at, and both can be changed without much friction.

Where your savings go while you're not watching

Banks don't park your money in a vault. They invest it. A portion stays liquid to cover withdrawals, but the rest gets put to work in bonds, equities, and loans. For years, a large share of those investments has flowed toward oil, gas, and coal companies.

Research published in Global Environmental Change by researchers at the University of Edinburgh puts the scale of emissions in context: global pet food production alone is associated with 56 to 151 million tonnes of CO2 equivalent per year, representing 1.1 to 2.9% of total agricultural emissions (Alexander et al., 2020). That figure is worth sitting with. The fossil fuel sector, meanwhile, receives financing worth trillions of dollars annually from major retail banks, most of it invisible to ordinary savers.

A 2022 study in Business and Society Review found that financial markets do react to fossil fuel divestment announcements, suggesting that where capital flows genuinely matters to corporate behaviour (Zori, 2022). Your savings are a small signal in a large system, but the signal is real.

The carbon cost hiding in your dog's bowl

Dog owners concerned about climate tend to focus on packaging, car trips to the pet shop, or whether to buy organic. The biggest lever is one fewer people check: the ingredients in the food itself.

Researchers from the Universities of Edinburgh and Exeter analysed the carbon footprint of 996 commercially available dog foods sold by a single UK retailer. The highest-impact products generated up to 65 times more greenhouse gas emissions than the lowest-rating options (published in Journal of Cleaner Production, 2026). The main driver was the proportion and type of meat: prime cuts intended for human consumption carry a far higher carbon cost than nutritious by-product ingredients that would otherwise go to waste.

A broader global analysis confirmed the pattern. Okin (2017), writing in PLOS ONE, estimated that food consumed by the US dog and cat population alone is responsible for releasing 64 million tonnes of CO2 equivalent per year. Ingredient selection, not packaging or transport, accounts for the majority of that figure.

This matters for dog owners, not because the solution is to stop feeding dogs, but because the choice of food does have a measurable footprint. Dry food made with by-product ingredients tends to sit near the low end of that 65x range. Wet, raw, and grain-free products using prime meat cuts tend to sit near the top.

"The production of ingredients used in UK dog food contributes to around 0.9 to 1.3 per cent of the country's total greenhouse gas emissions and up to 3.7 per cent of the UK food system's GHG emissions."— Universities of Edinburgh & Exeter, Journal of Cleaner Production, 2026

Two levers most people ignore

This is where the honest friction sits. Neither lever is dramatic, and neither requires a big lifestyle overhaul. But both require more than passive good intentions.

Lever one: ask your bank a harder question

Nearly 2,000 institutional investors representing more than $14 trillion in assets have divested or pledged to divest from fossil fuel companies, according to data tracked by climate finance researchers. Individual savers hold far less power, but the same principle applies. Some banks have made explicit commitments: Amalgamated Bank in the US, for instance, has pledged not to lend to fossil fuel companies and published its net-zero targets.

The practical step is simple. Ask your bank what it invests in. If you hold long-term savings, an ISA, or a pension, ask specifically whether the funds are screened for fossil fuel exposure. You don't need to move everything at once. Start by understanding what you currently own.

Lever two: look at what's in the bag

Not all sustainable dog food claims are backed by data, and it's worth being sceptical of marketing language on packaging. The Edinburgh/Exeter study is a more reliable guide than a "natural ingredients" sticker. The key variable is whether the product relies on by-product ingredients or prime cuts, and whether it leans dry or wet.

For most dogs, a nutritionally complete dry food made with responsibly sourced ingredients covers both the health and climate brief reasonably well. That's not a universal answer, but it's a useful starting point.

Why this is worth thinking about now

The connection between personal finance and climate tends to get buried under bigger headlines. It rarely makes the news because the mechanism is indirect: your savings don't personally drill for oil. But research on green finance suggests that capital allocation does influence emissions outcomes. A 2023 study in Frontiers in Environmental Science found that higher levels of green finance development decrease both local and adjacent carbon emissions, with effects that grow stronger over time rather than fading (Frontiers, 2025).

The same logic applies at the consumer level. Where money flows shapes what gets built, and what gets built shapes what gets emitted. A savings account in a bank that actively finances fossil fuel infrastructure is not a neutral act. Neither is a food choice at the high end of that 65x emissions range.

Both are also easy to change, at least in principle. That's what makes them worth examining.