CO2

Paying the price for carbon dioxide

Would you pay more in order to have glyphosate residues in your pint?

Putting a price on carbon makes people pay for carbon dioxide that they add to the atmosphere (ouch!) and rewards behaviour that reduces atmospheric carbon dioxide (yes, please).

So why not just make people who emit carbon pay for that carbon dioxide and give the same amount of money, the ‘carbon price’, to people who take it out of the atmosphere?

A lot of people make money out of carbon emissions. Oil companies are the main subjects of hatred, but it is the rest of us who actually burn the fossil fuels that keep our homes warm, our cars on the road and planes in the air. The biggest beneficiary is the Government, which gets 53p per litre of petrol, plus another 10p of VAT. It’s like the situation with cigarettes: the Government knew for decades that fags were killing people but the tax per packet was a vitally important source of income, so it was challenging for the powers-that-be to crack down on smoking. Even palm oil, most of which gets mixed with diesel fuel, gets taxed at 53p per litre, but the food industry takes the flak when it’s in a biscuit. Palm oil has replaced hydrogenated fat, which is why heart disease rates are falling.

Organic versus non-organic

Organic farmers increase soil carbon every year: they compost green waste and crop residues; they add manure to the soils instead of chemical fertilizer; they do crop rotations that naturally boost soil nitrogen; they encourage a resilient soil microbiome that also increases soil carbon; they let the land go fallow so natural fertility is rebuilt, which means more soil carbon. An organic farm can capture and store about seven tonnes of carbon dioxide per hectare per year.

Non-organic farmers use chemical fertilizers that wipe out the soil micobiome and cause nitrous oxide pollution that is a much worse greenhouse gas than carbon dioxide. Intensive animal rearing of cattle and pigs leads to higher methane emissions, another potent greenhouse gas. Herbicides and pesticides are made from fossil fuels and end up as more global warming. Farming is responsible for one third of our annual increase in greenhouse gas levels. Organic farming could cancel out that increase and bring greenhouse gas levels down by a similar amount and we could stop stressing about climate change.

Powerful stuff

So how can we encourage organic farming? How do you encourage anything? Money. Powerful stuff. Farmers love it.

The EU carbon price is just over £90 per tonne of CO2. An organic farmer can capture at least seven tonnes. If they got paid for it, that would be an extra income of £630 per hectare.

A non-organic farmer emits at least two tonnes of CO2 per hectare per year from fertilizer and soil organic matter breakdown. If they had to pay for that (a tax on fertilizers and pesticides) it would cost them at least £180 per hectare.

Every crop is different, but let’s take a look at barley. Let’s say that a barley farmer - whether organic or not - wants to make £1630 per hectare.

An organic farmer gets four tonnes of barley per hectare and can sell it at £250 per tonne; that’s £1000 per hectare. With a CO2 payment of £700 per hectare that adds up to £1700 per hectare gross income. Bingo!

A non-organic farmer gets a higher yield (thanks to chemicals) of six tonnes per hectare. At £250 per tonne that generates £1500 per hectare gross income. But the farmer must pay for two tonnes of CO2 emissions - £180 - so that brings it down to £1320. So to make as much as the organic farmer, the non-organic farmer would have to charge £305 per tonne for barley, an extra £55 per tonne. What brewer will pay a £55 a tonne premium for non-organic barley?

Much barley ends up in beer. If you’re down the pub and a pint of organic bitter is £3.30 and a pint of non-organic is £3.90 would you be prepared to pay more in order to have glyphosate residues in your pint?

Food and agriculture centre stage at COP28

Craig Sams journeys from the wealthy ancient Kingdom of Saba to modern-day Dubai as the UAE prepares to host the COP28 climate conference

About 1,500 years ago the descendants of the Queen of Sheba and King Solomon lived very well indeed. Their kingdom of Saba was insanely rich because they were the suppliers of frankincense and of spices from the Orient. Caravans of camels plodded northwards to the Mediterranean markets with incense that perfumed churches and synagogues all over Europe and spices that enhanced European cuisine. The camel caravans would stock up with food and water before their journey and the Sabaeans had plenty of that too, they had built a huge dam that captured the water of the monsoon rains and used it all summer long to irrigate the fertile plains around the capital city of Marib. At that time it was the wonder of the ancient world. The Sabaeans and their neighbours all worshipped the sun, a ‘god’ that rose into the heavens every morning.

Solomon convinced Sheba to become Jewish and abandon sun worship and she persuaded her sun-worshipping neighbours to be Jewish too. Then the Sabaeans ditched Judaism and converted to Christianity. Other sun worshippers stuck with being Jewish and the different tribes fell out over whose invisible god was the real invisible god. While they squabbled, nobody performed routine maintenance on the Marib Dam. It collapsed, and suddenly agriculture was impossible. Different tribes headed off in different directions - some to Syria, some to the Gulf. The ones who went to Syria, called Ghassanids, did rather well growing wheat and working with Rome to protect its eastern borders. The ones who went to the Gulf resorted to herding sheep and goats and moving from oasis to oasis. In the 1840s, as part of their aim to conquer Egypt and Suez, the British armed Druze who massacred 10,000 Ghassanid Christians and the survivors fled to northern Lebanon and then many to America (including my grandparents). The Sabaean tribes herding sheep in the Gulf allied with the British and then discovered rich stocks of oil and gas. They built new cities like Dubai and Abu Dhabi on the profits and did rather well. Sheik Zayed of Abu Dhabi used some of that money to rebuild the Marib Dam that had sustained his ancestors and it now irrigates the soils of the area. He also built the Abrahamic Family House where a mosque, a church and a synagogue are all in one grand building, bringing the argumentative religions of the Bible and the Koran under one friendly roof (Israeli tourism to the UAE has boomed in the last two years).

Dubai is hosting COP28 this November, the climate conference that is making halting progress towards getting the world’s climate under control. Dr Al-Jaber, the UAE minister for industry, has stated that food and agriculture will take centre stage in COP28’s carbon reduction programmes. Why not? The Earth’s soils are ten billion hectares. Each hectare, if managed with carbon in mind, can capture and retain about seven tonnes of CO2 every year, whether it’s farmland, pasture or forest. That’s 70 billion tonnes - twice the annual increase in CO2 emissions. Duh!

All we have to do is charge the way we farm, the way we graze animals and the way we manage forests. In other words, go organic, graze ‘regeneratively’ and manage woodland sustainably.

Dubai gets things done. Solar power converts sea water into drinking water. Buildings have car-charging points and low-energy construction to minimise their carbon footprint. Just this year they are spending $40 billion to get to net zero well before 2050. Their Sabaean ancestors goofed big time and had an environmental disaster that ruined their wealthy original homeland. They don’t want to make the same dumb mistakes again.

When we infected the Amazonian tribes with our diseases most of them died and the Amazon rain forest grew up. At the same time, the Plague killed off vast numbers of farmers in Europe and Asia, the trees moved in and sucked CO2 out of the atmosphere. We had the Little Ice Age as a result of those blasted trees taking over. Then we discovered steam engines and coal and oil and that saved us from freezing to death. We are humans. We have the brains and the power. The UAE and Dubai can get us on track at COP28. They learned their lesson the hard way 1,500 years ago. Now they can help us get back into balance.