Why some climate policies succeed and others stall

Published in Research Policy, the study examines how policies interact with the broader social and technical systems they aim to transform. It shows that outcomes depend not only on the strength of the policy but also on the feedback it generates among users, businesses, public opinion and the technology itself.

Using detailed case studies of LED lighting and smart meter rollouts in the UK, the research introduces a new framework for understanding how these feedbacks influence progress. It draws on insights from political science, innovation studies and systems thinking to explain how positive and negative effects build over time.

What the UK can learn from two major rollouts

In 2007, the UK began phasing out incandescent light bulbs. The decision, later followed by a Europe-wide ban, led to the rapid adoption of energy-efficient alternatives. As firms invested, costs fell and performance improved. Public opinion shifted, and LEDs became the new norm. By 2021, LEDs made up the majority of light bulbs sold in the UK.

A year later, the government committed to installing smart meters in every home. Despite high expectations, the rollout faced technical issues, rising costs and limited user interest. Many households were unfamiliar with the technology. Installation was more complex and required active user involvement. Public confidence declined, and progress slowed.

According to Dr Ayoub, the difference lies in the feedback effects triggered by each policy. “In the case of LEDs, we saw reinforcing effects. Investment led to improvements. Public debate became more positive. That helped the policy go further. Smart meters did not follow the same pattern.”

Making climate policy work in practice

The research offers practical lessons for governments and policy teams. It shows that policies are most effective when they support investment in innovation and deployment, helping technologies to improve, scale and become more attractive to users over time.

Technologies that are simple to use and require little behavioural change tend to spread more quickly. More complex technologies, such as smart meters or heat pumps, face greater challenges, especially when introduced without sufficient support or communication.

Another finding is that timing matters. Policies that begin with smaller interventions and gradually build over time are more likely to succeed than sudden, one-size-fits-all mandates. This approach enables policymakers to learn from early feedback and make adjustments accordingly.

There is no shortage of ambition in climate policy, the challenge is in delivery. That means listening to users, learning from firms and creating the right conditions for technologies to thrive.

Martina Ayoub is our Lecturer in Sustainability and Strategy and Programme Director MSc Global Strategy & Sustainability.