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Wednesday, October 27, 2021 

A feasible path to limit planetary warming to 1.5C requires certain countries and sectors to go below net zero and to do so well before the middle of the century, according to new analysis from the authors of DNV's 'Energy Transition Outlook'

DNV reminds policy makers that they are set to meet in Glasgow for the COP 26 summit with an eye on achieving zero emissions by 2050.  For this to happen, North America and Europe must be carbon neutral by 2042 and then carbon negative thereafter, according to DNV’s latest report Pathway To Net Zero. The pathway also finds that Greater China must reduce emissions by 98% from 2019 levels by 2050.  There are regions that cannot realistically transition completely away from fossil fuels in the same timeframe, such as the Indian Subcontinent, which will reduce emissions by 64%.

DNV has laid out the pace at which different industry sectors need to decarbonise. The so-called hard-to-abate sectors will take longer to decarbonise and even if sectors like maritime (-90% CO2 emissions in 2050) scale up the introduction of greener technologies, they will still be net emitters by 2050.

Whilst the DNV Energy Transition Outlook forecasts the most likely energy future through to 2050, the Pathway to Net Zero Emissions offers a feasible way to limit global warming to 1.5°C. The report is believed to stand out amongst its peers as the only one that starts from the point of where we most likely will be in 2050 and then seeks to close this gap.

Remi Eriksen (pictured), DNV Group President and CEO. said: “Zero is not enough. That is because, try as they might, many developing nations and hard-to-abate sectors will not be able to achieve zero emissions by 2050 – the critical threshold for the world to stay within 1.5°C of warming. Developed nations, leading companies and easy-to-electrify sectors are therefore going to have to go below zero before 2050.”

The primary energy mix laid out in the net zero report is radically different from the current trajectory. Electricity meets just above half (51%) of the energy demand with wind and solar supplying 86% of electricity.  Hydrogen, which is vital to decarbonise the hard-to-abate sectors, has a 13% share. Fossil fuels will still be required by countries and industries that are unable to decarbonise completely by 2050. 21% of the energy mix is derived from fossil fuels (8% oil, 10% natural gas and 3% coal), although there will be no need for new oil and gas fields after 2028 in this pathway. Carbon capture and storage (CCS) technologies are a must according to the net zero report to remove the final 20% of emissions. Nuclear does not feature prominently because it is too costly compared to renewable energy.

The mid-term aim of the Paris Agreement to halve emissions compared to 2017 levels by 2030 is considered to be out of reach and the net zero report puts emission reduction at 30% at this point. However, for technologies such as hydrogen and CCS to become scalable further down the line, investments and reshaping of policies must start now. Simultaneously, a massive ramping up of solar and wind needs to start immediately to accelerate the green electrification of the energy system beyond the current fast pace of change.

Time is the key restraint to realising the Pathway to Net Zero Emissions, rather than money. Even with very large investments required, particularly in the short term, (cumulatively US$ 55trn in renewables and US$ 35trn in grids over 30 years) the additional costs of reaching 1.5°C are less than 1% of global GDP the next 30 years.

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