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By Cecile Kobryner

From farm to plate, producing food has a big impact on water use, energy use and greenhouse gas emissions worldwide.

How much do you know about the environmental footprint of your meal? Take our test to find out.

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By Freya Palmer

Fork after fork, your food is taking a bigger bite out of the carbon budget.

The global food system – from fertiliser, production to packaging – accounts for up to a third of all human-caused greenhouse gas emissions, according to CGIAR.

Dialling down diets should be a first step in tackling climate change – removing red meat is good, vegetarianism better, veganism best.

To be sure, any state role in controlling our intake is rightly controversial. So here are eight ideas and initiatives to cut your carbon footprint.

1. Lab-grown meat

Meat is the worst offender on any plate. Rearing livestock strips rainforest for grazing and feed-stocks, while animals themselves produce methane, a potent warming pollutant.

In 2013, however, Maastricht University’s Mark Post answered the groans of all meat-loving environmentalists when he created the world’s first lab-grown burger.

Cultured meat produces 80-95% less emissions than farmed meat, meaning it would have a significant impact on the average carbon footprint. One problem: you’ll have to wait at least ten years before it makes supermarkets.

2. Low-methane cows

Now we’ve sorted our burger problem, it’s time to turn to milk. So long as we continue to consume dairy, cows will continue to pollute our plates.

One solution that has been found to this is the introduction of methane inhibitor, 3NOP, which reduces the methane production of cows by 30%.

It’s a potential breakthrough, although it does nothing to stop the deforestation problem.

3. Genetically modified rice

Livestock isn’t the only culprit when it comes to greenhouse gas emissions. Grown in water-logged conditions which breed methane-producing microbes, rice is one of the largest contributors. As it is also a global staple, the impact of rice on greenhouse gas emissions is huge.

But don’t fear. Guilt-free rice is on its way. Earlier this year researchers succeeded in genetically modifying rice crops to produce virtually no methane.

4. Insects

But why wait around for genetic modifications and commercial viability when there’s a low-carbon food source already available to us? High in protein, vitamins and minerals, as well as being environmentally sound, insects are an ideal choice for anyone trying to cut their carbon footprint.

In the face of climate change and peak farmland, tree foods offer “hidden harvest” for the global hungry, said a report by the International Union of Forest Research Organizations in June. Grub’s up.

5. Vertical farming

Another way to cut the impact of our food is by changing farming methods. Vertical farming uses tall buildings to grow crops like leafy greens, with lower land, water and fertiliser use.

Being close to the urban centres of demand, such farms can also cut down on transport emissions and spoilage.

However, as David Rosenberg, CEO of vertical farming company AeroFarms, admits, a lot of energy is used to power the LED lights and nutrient pumps necessary to crop growth.

Is it lower carbon overall? The jury is still out.

6. Bacon-flavoured seaweed

Last month, researchers at Oregon State University patented a new strain of seaweed which will excite environmentally-conscious meat eaters.

The seaweed is protein-rich and tastes exactly like bacon. Not only this, the growing process is also carbon-negative, as the seaweed absorbs CO2 from the water.

7. Cutting food waste

Who would toss the cute little nectarine on the right? Most grocers that’s who. #SaveTheSmalls http://t.co/FlnNAy5f4f pic.twitter.com/YnBS2YvZO2

— @UglyFruitAndVeg (@UglyFruitAndVeg) August 22, 2015

The planet is producing a third more food than it consumes. And greenhouse gases given off over the lifetime of all discarded produce total 3.3 billion tonnes of CO2 a year, according to the UN’s Food and Agriculture Organization. That would make it the third largest emitter if it were a country, behind China and the US.

One American eco-conscious man, Jordan Figueiredo, has set up the @UglyFruitAndVeg Twitter account to show the waste of imperfect greens. With almost 20,000 followers, his message is getting out there.

ICYMI – The Pepper Boxing Match! #DuelToTheSalsa Pic by @happyacrefarm on IG pic.twitter.com/yRCt6phsgv — @UglyFruitAndVeg (@UglyFruitAndVeg) August 23, 2015

8. Eat your offal

All giblets are good. Ox-feet, tripe and pluck a meal can make. Making nose-to-tail eating fashionable again may not be too difficult for older generations. But in today’s age of supermarket bounty, it’s a more radical thought.

British celebrity chef Hugh Fearnley-Whittingstall tried with a book campaign to persuade consumers to look past the prime cuts.

Eating the whole beast is another way of limiting waste, if modern consumers can get over their aversion to innards.

Alex Pashley contributed to this report

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