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Friday, 19 July

Buildings, Heating And Cars Can Play Major Role In Emissions Zero

The UK can end its contribution to global warming within 30 years by setting ambitious new targets to reduce greenhouse gas emissions to zero by 2050, the Committee on Climate Change said on May 2.

Ten years after the Climate Change Act became law, now is the right moment to set a more ambitious goal, the Committee on Climate Change (CCC) believes. Achieving a ‘net-zero’ target by the middle of the century is in line with the UK’s commitment under the Paris Agreement - the pact which the UK and the rest of the world signed in 2015 to curb dramatically the polluting gases that cause climate change.

 

Regional targets

Scotland has greater potential to remove pollution from its economy than the UK overall, claims the CCC and can credibly adopt a more ambitious target of reaching net-zero greenhouse gas emissions (GHGs) by 2045.

Wales has slightly lower opportunities than the UK as a whole, thus should adopt a target for a 95% reduction in greenhouse gas emissions by 2050, compared to 1990 levels.

 

Global temperature

A CCC spokesperson said: "This is a crucial time in the global effort to tackle climate change. Global average temperature has already risen by 1°C from pre-industrial levels, driving changes in our climate that are apparent increasingly. In the last ten years, pledges to reduce emissions by the countries of the world have reduced the forecast of global warming from above 4°C by the end of the century to around 3°C.  Net-zero in the UK would lead the global effort to further limit the rise to 1.5°C."

 

IPCC

The Intergovernmental Panel on Climate Change (IPCC) has emphasised the vital importance of limiting further warming to as low a level as possible and the need for deep and rapid emissions reductions in order to do so.

The CCC’s recommended targets, which cover all sectors of the UK, Scottish and Welsh economies, are achievable with known technologies, alongside improvements in people’s lives, and should be put into law as soon as possible, the Committee states.

 

Economic target

Falls in cost for some of the key zero-carbon technologies mean that achieving net-zero is now possible within the economic cost that Parliament originally accepted when it passed the Climate Change Act in 2008.

 

The Committee’s report finds that:

  • The foundations are in place throughout the UK and the policies required to deliver key pillars of a net-zero economy are already active or in development. These include a supply of low-carbon electricity (which will need to quadruple by 2050), efficient buildings and low-carbon heating (required throughout the UK’s building stock), electric vehicles (which should be the only option from 2035 or earlier), developing carbon capture and storage technology and low-carbon hydrogen (which are a necessity not an option), stopping biodegradable waste going to landfill, phasing-out potent fluorinated gases, increasing tree planting, and measures to reduce emissions on farms.

  • Policies will have to ramp up significantly for a ‘net-zero’ emissions target to be credible, given that most sectors of the economy will need to cut their emissions to zero by 2050. The Committee’s conclusion that the UK can achieve a net-zero GHG target by 2050 and at acceptable cost is entirely contingent on the introduction without delay of clear, stable and well-designed policies across the emitting sectors of the economy.

  • Government must set the direction and provide the urgency. The public will need to be engaged if the transition is to succeed. Serious plans are needed to clean up the UK’s heating systems, to deliver the infrastructure for carbon capture and storage technology and to drive transformational change in how we use our land.

  • The overall costs of the transition to a net-zero economy are manageable but they must be fairly distributed. Rapid cost reductions in essential technologies such as offshore wind and batteries for electric vehicles mean that a net-zero greenhouse gas target can be met at an annual cost of up to 1-2% of GDP to 2050.

  • However, the costs of the transition must be fair, and must be perceived as such by workers and energy bill payers. The Committee recommends that the Treasury reviews how the remaining costs of achieving net- zero can be managed in a fair way for consumers and businesses.

  • There are multiple benefits of the transition to a zero-carbon economy, the Committee’s report shows. These include benefits to people’s health from better air quality, less noise thanks to quieter vehicles, more active travel thanks to increased rates of cycling and walking, healthier diets, and increased recreational benefits from changes to land use.

In addition, the UK could receive an industrial boost as it leads the way in low-carbon products and services including electric vehicles, finance and engineering, carbon capture and storage and hydrogen technologies with potential benefits for exports, productivity and jobs.

 

Comments

Lord Deben, Chairman of the Committee on Climate Change, said: “We can all see that the climate is changing and it needs a serious response. The great news is that it is not only possible for the UK to play its full part but it can be done within the cost envelope that Parliament has already accepted. The Government should accept the recommendations and set about making the changes needed to deliver them without delay.”

CIBSE Technical Director Hywel Davies, said: "In the buildings sector, the committee recognises that the foundations for a net zero target are in place but has called for a 'major ramp-up of policy effort' to deliver energy efficient buildings and low carbon heating across the sector and the stock. They are quite explicit about the need for greater urgency to deliver progress, describing current plans as 'insufficiently ambitious' or 'proceeding too slowly, even for the current 80% target'.

"They comment that more than ten years after the Act was passed, 'there is still no serious plan for decarbonising UK heating systems and no large-scale trials have begun for either heat pumps or hydrogen'.

"This really is a wake-up call for the building services sector. We need to take a serious look at how we can deliver effective low or zero carbon heating at scale, which is essential to meeting a zero carbon target rather than the current 80% reductions."

Picture: To download a copy of 'Net Zero The UK's contribution to stopping global warming' - Click Here

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Article written by Brian Shillibeer

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