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As climate concerns shape investor behavior, a new study suggests that companies implementing a broad spectrum of climate policies, rather than isolated initiatives, demonstrate more significant reductions in greenhouse gas emissions.

The study, led by Lena Klaaßen of ETH Zurich and published in PLOS Climate, encourages climate-conscious investors to back companies that employ a diverse range of climate policies, which may be more effective in addressing climate goals.

Policymakers increasingly view the private sector as central to climate action, and investor interest in sustainable practices is steadily rising. Capital flows have begun shifting toward companies that exhibit promising climate policies. However, despite companies disclosing their climate strategies more frequently, research into the direct impact of these corporate policies on emission reduction has been limited.

Evolution of existent corporate climate policies (treated as binary–YES/NO) across sample companies from 2010–2022. Credit: Lena Klaaßen et al. (2024) | DOI: 10.1371/journal.pclm.0000458 | PLOS CLimate

Analyzing data from the CDP climate database, Klaaßen and her team examined the climate policies and emissions of more than 1,700 corporations worldwide over a twelve-year period, from 2010 to 2022. This extensive dataset included companies with isolated climate policies as well as those employing a mix of measures covering emissions targets, financial incentives, and regular monitoring.

According to the study, single policies showed no consistent link to emission reductions, whereas firms implementing comprehensive policy bundles achieved an average reduction of over 20% in greenhouse gas emissions during the study period.

“These findings highlight the value of comprehensive climate disclosures to help investors identify firms with credible emission reduction efforts,” says Klaaßen. “Our study suggests that while individual corporate climate policies provide limited insight into companies’ climate performance, a comprehensive policy mix shows a stronger association with lower absolute emissions.”

The study’s authors argue that these findings underscore the need for investors and policymakers to prioritize multi-faceted climate strategies over singular efforts. Bundling policies appears to be crucial for companies aiming to make measurable progress on emissions, and could also guide policymakers in crafting disclosure regulations that encourage a broader approach to corporate climate responsibility.

Klaaßen and colleagues advocate for further research to explore the interaction between corporate climate policies and regional government regulations, which could deepen understanding of policy effectiveness across sectors and borders.

They also call for vigilance in monitoring corporate disclosures, as reliance on these reports alone may not fully capture the reality of a company’s environmental impact.

This research provides a compelling argument for stakeholders to support comprehensive climate action and pushes the conversation forward on effective climate finance strategies – encouraging investors to look beyond basic disclosures and toward firms with substantial, multi-pronged climate policies that align with long-term climate objectives.

Journal Reference:
Klaaßen L, Lohmüller C, Steffen B, ‘Assessing corporate climate action: Corporate climate policies and company-level emission reductions’, PLOS Climate 3 (11): e0000458 (2024). DOI: 10.1371/journal.pclm.0000458

Article Source:
Press Release/Material by PLOS
Featured image credit: Freepik

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