R (Finch) v Surrey County Council [2024] UKSC 20
R (Finch) v Surrey County Council held that an environmental impact assessment for an oil-production project had to assess emissions from burning the oil. Those downstream emissions were effects of the project.
Facts
Surrey County Council granted planning permission to retain and expand oil production at the Horse Hill site. The development would produce petroleum over many years. Its environmental statement assessed emissions from operating the site but did not assess greenhouse gases released when the extracted oil would later be refined and burned by consumers. The council accepted the developer's view that those downstream emissions were not environmental effects of the project itself. Sarah Finch, acting for a local campaign group, challenged the permission under the Town and Country Planning (Environmental Impact Assessment) Regulations 2017. The parties agreed that combustion emissions were readily quantifiable and would be much greater than operational emissions.
Legal Issue
Were greenhouse-gas emissions inevitably produced by the eventual combustion of extracted oil indirect effects of the development that the environmental impact assessment was legally required to consider?
Held
By a majority, the Supreme Court allowed the appeal and quashed the planning permission. Lord Leggatt held that combustion emissions were effects of the oil-extraction project because extracting oil for commercial use led predictably and inevitably to its combustion. The causal connection was not broken by refining, sale, consumer choice or the fact that burning might occur elsewhere. Environmental assessment is informational: requiring assessment does not dictate refusal, but ensures that the public and decision-maker understand likely significant effects. The council had applied the wrong legal test by treating downstream emissions as incapable of being project effects. The majority distinguished projects producing materials with many possible uses, where a comparable inevitability may be absent.
⭐ Legal Principle
An environmental impact assessment must include likely significant indirect effects causally resulting from a project. Where fossil fuel is extracted for inevitable commercial combustion, the resulting greenhouse-gas emissions are effects of the extraction project even if combustion occurs later and elsewhere.
Significance
Finch is a major planning and climate decision because it requires decision-makers to confront substantial downstream emissions from fossil-fuel extraction. It does not impose a rule that permission must be refused or require every remote consequence of every development to be assessed. The majority relied on the particular causal inevitability and ability to estimate emissions. The ruling concerns the adequacy and legal scope of environmental information, preserving the planning authority's role in weighing climate impacts with other considerations after a lawful assessment.
Common exam questions about this case
Why were the combustion emissions effects of the Horse Hill project?
The commercial purpose of extracting the oil was to supply it for use as fuel, and combustion was the inevitable consequence of that use. Refining and market transactions did not alter the causal reality. The emissions were also capable of estimation, so their later and geographically dispersed occurrence did not exclude them from assessment.
Did Finch require Surrey County Council to refuse planning permission?
No. Environmental impact assessment ensures that likely significant effects are identified, described and publicly considered before a decision. It does not prescribe the weight given to each effect or dictate the planning result. After a legally adequate assessment, the authority retains its planning judgment subject to ordinary public-law limits.
Does every project require assessment of all emissions from products made using its output?
No. The majority emphasised the direct and inevitable link between extracting oil for commercial use and its eventual combustion. A raw material may have many possible uses, or later emissions may be uncertain and causally remote. Each project requires analysis of likely significant effects on its own evidence and statutory context.