In 2026, the Institute of Public & Environmental Affairs (IPE) conducted its Corporate Climate Action Transparency Index (CATI) research covering 800 companies across 23 sectors. The findings show that corporate climate action has made steady progress over the past six years, with more than 90% of companies disclosing emissions data and over 80% setting climate targets. Supply chain carbon disclosure and renewable energy use have continued to expand, but substantial Scope 3 emissions reductions remain challenging, while low-carbon materials, technologies and logistics practices have yet to be adopted at scale. The report highlights the need to embed emissions reduction requirements in procurement decisions, strengthen supplier support and performance tracking, and accelerate supply chain decarbonization at scale.