UK becomes first G20 country to halve its carbon emissions

Thursday 28 December 2023

UK becomes first G20 country to halve its carbon emissions

A major milestone has just been passed: Britain has become the first major country to halve its carbon emissions. The rapid pace of UK environmental progress means that it's output is now below 320 million tonnes – less than half the 652 million tonnes of our 1970 peak. This is in spite of Britain now having a far larger population than 50 years ago and an economy more than twice the size.

Had things gone the other way – if carbon emissions had doubled, for example – this would be front page news. But I’m not sure you can expect to read about this good news anywhere other than The Spectator

UK carbon emissions: 52% below peak (Annual territorial emissions in million tonnes of CO2)

Year1860188019001920194019601970198020002022
Tonnes per capita (m)5.818.5810.17 10.059.6911.12

11.73

10.289.694.72

There are no campaign groups tracking it, no politicians likely to trumpet it. The info is tracked by the Global Carbon Project and is one of many metrics collected in the energy section of The Spectator data and shows a country’s per capita carbon emissions since the beginning of the industrial revolution. This is a shame because it means a generation of young people are being brought up only ever hearing one side of the story: that there is a climate crisis that shows little chance of being solved. In fact, Britain is leading the G20 in decarbonisation, even when you factor in imports (the so-called ‘consumption’ table).

Cumulative change in consumption CO2 emissions

Year20102011201220132014201520162017201820192020
Index10090949188778581797671

So how has this been achieved? By the three drivers of green progress: tech, capitalism and consumer choice. Fuel is expensive, hence innovation means every year devices that use energy are improved so they use less and cost less: even petrol cars travel 50 per cent further on the same fuel as when Blair came to power. Home heating efficiencies (and far-better insulation) means the fuel used by the average home has gone down by 41per cent. The pain of high bills would have been a lot greater if it were not the rapid advances of the last five decades.

UK household energy usage now 40% below peak

Energy consumption per household as a percentage change from the peak reached in 1979

Year19751980198519901995200020052010201520202022
Index 1979 = 1009895958889949392736759

You can see this across the board. Progress in agriculture mean that fertiliser use peaked in the mid-1980s. Since then, the total amount of nitrogen used in fields has almost halved and the amount of phosphate is down by two-thirds. Air pollution levels have collapsed; London air is purer now than in medieval times. 

This provides important context for the NetZero debate. The UK itself generates less than 1 per cent of emissions - so very little that we do, now, will move the global dial. We're doing more than anyone else which should raise questions as to how much pain to inflict on the average householder through more green taxes.

The below chart shows how much progress the rest of the G20 has made from their carbon peak.

G20 emissions: peak vs latest

Source: Global Carbon Project database

Saudi ArabiaCanadaUSAJapanItalyRussiaGermanyFranceUK
-6%-8%-18%-20%-33%-35%-40%-45%-52%

Amongst G20 nations only Argentina, China, India, Indonesia and Mexico – are showing no reduction at all because they are at peak carbon right now and setting new records each year. But this needs to be seen in connection with their likely trajectory: when they peak, they’ll be able to fall a lot faster than Britain did due to far-better technology. And coal-guzzling China?  The country is on track to have its carbon emissions peak by 2030 and aims to be carbon neutral by 2060. Once countries hit the peak, they’ll be able to fall faster due to better tech. As Cindy writes, ‘It took London 50 years to halve its air pollution; Beijing may well do so much quicker.

All told, it’s a striking trend – and a useful balance to the often-hyperbolic negativity that is normally used when covering this important story.

Article extracted from Spectator

Discussion questions

a. Why might the column suggest that good news such as a halving of emission levels has not been reported by other areas of the media?

There might be two reasons for this, the first might be vested interest groups, for example, green energy providers and pressure groups (including political parties committed to the cause) that do not wish such news to be made public as it contradicts their own agendas.

Secondly, this apparent good news may itself be misleading. For example, a glance at global emissions levels shows that levels continue to rise (or at least remain constant at 37.17 billion tonnes), despite the best efforts of 15 of the leading G20 nations. Line 27 of the article notes that 'the UK itself generates less than 1 per cent of emissions'. 

b. Why might global temperatures still be rising despite falling emission levels amongst most of the G20 most industrialised nations.

One reason for this may already be noted - that a fall in emissions and consumption levels amongst 15 of the world's leading industrial nations is not sufficient to reduce overall global levels which remain at 37.17 billion tonnes. A level at or close to peak global levels, historically. Furthermore, the additional human-made carbon output is cumulative, meaning that even if nations suddenly went 'carbon neutral', the goal of many Developed nations the CO2 already produced will remain in the atmostohere for many years to come. It is also worth noting that human activity, in the form of increased carbon emissions, is just one determinate of world weather patterns, with 'mother nature' playing a much larger role. 

The article and discussion questions can be accessed as a PDF file at:  UK carbon emissions


Tags: global economy, economic wellbeing