β οΈ
CONTESTED ESTIMATE
Significant methodological disputes. View caveats below.
πΏEnvironment
Net Zero Deregulation
Upfront
+Β£500m
Annual
-Β£15.0bn
Revenue
+Β£6.0bn
Net Annual Effect
-Β£9.0bn/year
Payback in 2 years
GDP +1.8%Productivity +0.3%very high uncertainty
UNCERTAINTY RANGE (Annual Net Effect)
Most Pessimistic
-Β£50.0bn
β·
Most Optimistic
+Β£30.0bn
β οΈ
MAJOR CAVEATS
- β’Climate models have wide uncertainty ranges; damage estimates vary by 10x depending on discount rate assumptions
- β’UK is 1% of global emissions - unilateral action has minimal climate impact but large economic cost
- β’CCC/OBR models assume global coordination that is not occurring - China/India emissions rising
- β’EU CBAM applies to some exports, but UK already deindustrialised - limited remaining exposure
- β’Energy costs already 40-60% above EU competitors - further divergence accelerates deindustrialisation
- β’Stranded asset argument applies both ways: Β£200bn+ sunk in intermittent renewables if nuclear/gas prove optimal
- β’Track record: Net Zero policies to date have not reduced global emissions, only offshored UK production
- β’Adaptation may prove more cost-effective than mitigation for 1% emitter
3 sources