Humphry Davy’s experiments with inhaling nitrous oxide made his name in scientific circles, and provided amusement and the opportunity to expand their consciousness to his friends and fellow intellectuals, but they were also to have an impact on fashionable society and the medical world. The genie was out of the bottle and fashionable young men wanted to experience the sensations caused by the…
Calculate direct and indirect N₂O emissions from synthetic and organic fertiliser using IPCC 2019 AFOLU Tier 1 factors. Free, with full meth
The emission line most farm and food inventories get wrong
Nitrous oxide (N₂O) from fertiliser is the carbon-accounting line that quietly breaks agricultural inventories. The gas is invisible, the process is slow, and the IPCC method hides three separate emission pathways behind one input box: kilograms of nitrogen applied.
Here's why small mistakes get large. N₂O has a global warming potential of 273 — one kilogram warms the climate as much as 273 kilograms of CO₂ over a century. So a tiny fraction of escaped nitrogen turns into a material tonnage. Apply 10,000 kg of synthetic nitrogen in a wet climate and you get roughly 84.7 tonnes of CO₂-equivalent under the current IPCC 2019 Refinement method (AR6 basis).
Three places it goes wrong:
→ Entering product weight as nitrogen weight. Urea is 46% nitrogen, not 100%. Enter the bag weight as if it were nitrogen and you overstate by two to three times.
→ Dropping the two indirect pathways — nitrogen that drifts away and redeposits, and nitrogen that leaches into water. Both count. Skip them and you understate by ~20–25%.
→ Forgetting the 44/28 molecular conversion. Factors are published per kilogram of N₂O-nitrogen, not whole molecules. Skip it, understate by about a third.
Free calculator, full IPCC 2019 Refinement methodology, both the transparent pathway build-up and the DEFRA cross-check, with a coefficient-level audit trail: https://greencalculus.com/calculators/afolu-fertiliser-soil-n2o-calculator/
Ummmmm only do that shit if you really want to get really scared, laugh maniacally and throw up. otherwise bad idea very scary. Only fun if you’re previously very experienced in making bad ingestive ideas. I’m getting my wisdom teeth removed next week hashtag really excited also should I get this hair with or without the red highlights
Humphry Davy’s experiments into the effects of inhaling nitrous oxide, which had culminated on Boxing Day 1799 with him taking the largest ever dose of the gas, began in April of that year. He was keen to allow others to experience this new form of consciousness expansion, inviting the future poet laureate, Robert Southey, to inhale the gas with him.
Southey was an immediate convert, writing of…
I was in Penzance last Sunday and saw the statue of Sir Humphry Davy. He was carrying a miner’s lamp but he could equally be portrayed with a green silk bag and a vacuous expression on his face.
In the lamp-lit laboratory of the Pneumatic Institute in Bristol on Boxing Day, 1799, a young Humphry Davy – yes, that one – stripped to the waist with a thermometer under each armpit, stepped into a…