The bustling streets of New Delhi provide a snapshot of global inequality. Lamborghinis may line the driveways of luxury shopping malls, but only a few turns away, children play shoeless in the mud of rudimentary settlements. Yannick Oswald, an energy researcher at the University of Leeds, was struck by this inequality when he visited the city in 2016: ‘From then on, I couldn’t stop thinking about the insane gulf between the vast resources and energy used up in just one day by the Lamborghini owner, compared to how little is provided to the poor.’

In 2017, 82 per cent of all wealth created fell into the hands of the top one per cent of earners. At the same time, around one billion people don’t have access to electricity. Ending poverty necessitates that the latter figure comes down, but a key challenge is to do so without compromising environmental targets. A 2017 study published in Nature and led by Klaus Hubacek at the University of Maryland, demonstrated that increasing the income of those in extreme poverty to above $1.90 purchasing power parity a day – a measurement that uses the prices of goods in diff erent countries to compare absolute purchasing power, also known as ‘international dollars’ – would not jeopardise climate targets. According to the World Bank’s international poverty line, $1.90 is the threshold for extreme poverty. However, raising this to a still-modest $2.97 a day would have long-term consequences for achieving emissions targets.

‘To combat climate change, we need to reduce energy and CO2 emissions worldwide. Equally, we have a vast amount of people who do not have basic energy for living,’ says Oswald. ‘We have to somehow get the poor out of this energy poverty and reduce the energy consumption of the wealthy.’

Understanding people’s everyday energy usage is a start to solving this problem. Oswald and his team have created a model that incorporates data from the International Energy Agency and the World Bank in order to visualise how energy was utilised in 2011 and how it varied according to income. The dataset is expansive: 78 per cent of the global population, 56 per cent of global GDP and 64 per cent of fi nal energy in 2011 are represented. ‘We factored in both direct and indirect energy: “direct” is that used at home in heating and electricity, for example; and “indirect” is embodied in the goods and services that we use, as well as their supply chains,’ says Oswald.

The findings show that the use of energy-intensive products and services by the highest earners propagates the energy divide. In 2011, the top ten per cent of global earners consumed 39 per cent of final energy. This was nearly equivalent to the total consumption by the bottom 80 per cent of earners. What’s more, the lowest ten per cent consumed almost 20 times less than the top ten per cent.

‘The lowest income groups use mainly direct energy to prepare food and satisfy basic needs,’ says Oswald. ‘As you go up the income scale, you see people starting to spend more on their homes, on mobility, on vehicles, holidays and luxury items – indirect, energy-intensive goods and services.’

Read the rest of Jacob Dykes’ article here at Geographical