Global emissions start to creep upwards again

The Covid-19 crisis in 2020 triggered the largest annual drop in global energy-related carbon dioxide emissions since the Second World War, according tothe International Energy Agency. However, the overall decline of about 6 per cent masks wide variations depending on the region and the time of year.

Global emissions plunged by almost 2bn tonnes in 2020, the largest absolute decline in history. Most of this – around 1bn tonnes, which is more than the annual emissions of Japan – was due to lower use of oil for road transport and aviation.

After hitting a low in April, global emissions rebounded strongly and rose above 2019 levels in December. The latest data show that global emissions were 2 per cent or 60m tonnes, higher in December 2020 than they were in the same month a year earlier.

Major economies led the resurgence as a pick-up in economic activity pushed energy demand higher and significant policies measures to boost clean energy were lacking. Many economies are now seeing emissions climbing above pre-crisis levels.

“The rebound in global carbon emissions toward the end of last year is a stark warning that not enough is being done to accelerate clean energy transitions worldwide,” said Dr Fatih Birol (pictured), the IEA Executive Director. “If governments don’t move quickly with the right energy policies, this could put at risk the world’s historic opportunity to make 2019 the definitive peak in global emissions.

“In March 2020, the IEA urged governments to put clean energy at the heart of their economic stimulus plans to ensure a sustainable recovery. But our numbers show we are returning to carbon-intensive business-as-usual. This year is pivotal for international climate action – and it began with high hopes – but these latest numbers are a sharp reminder of the immense challenge we face in rapidly transforming the global energy system.”

The 2020 trends underscore the challenge of curbing emissions while ensuring economic growth and energy security. Amid a growing number of pledges by countries and companies to reach net-zero emissions by mid-century, the rebound in emissions shows what is likely to happen if those ambitions are not met with rapid and tangible action.

Emissions in the United States fell by 10 per cent in 2020. But on a monthly basis, after hitting their lowest levels in the spring, they started to bounce back. In December, US emissions were approaching the level seen in the same month in 2019. This was the result of accelerating economic activity as well as the combination of higher natural gas prices and colder weather favouring an increase in coal use.

“Nonetheless, there are still reasons for optimism,” added Dr Birol. “China has set an ambitious carbon-neutrality target; the new US administration has rejoined the Paris Agreement and is putting climate at the heart of its policy-making; the European Union is pushing ahead with its Green Deal and sustainable recovery plans; India’s stunning success with renewables could transform its energy future; and the United Kingdom is building global momentum toward stronger climate action at COP26 in November.”