The shift towards net zero is being increasingly driven by economics rather than solely by self-interest. Historically, economic growth was tied to increased carbon emissions, but this trend began to decouple in the 1980s with nuclear power and has accelerated due to cheap renewables, a shift to services, and cleaner fossil fuels. For instance, India's projected coal capacity growth between 2018 and 2040 was revised from 80% to just 10% by the International Energy Agency due to changing economics. By 2020, wind and solar had become considerably cheaper per unit of energy than coal, with new installations sometimes being more cost-effective than operating existing coal plants. This has led to "green growth," where 70 countries have experienced GDP growth alongside declining emissions for at least five years.

Despite these positive economic trends, the world remains far from achieving net zero, and significant financial challenges persist. An estimated $13.5 trillion in investments is required by 2050 in heavily-emitting sectors to decarbonize, according to the World Economic Forum. McKinsey also estimates that annual investment in physical assets needs to increase from $5.7 trillion to $9.2 trillion to meet net zero goals. The complexity of transition finance, especially the risk of "greenwashing," where funds intended for green projects might free up capital for fossil fuel assets, is a major concern. Investors are urged to assess a company's overall transition strategy rather than just individual green projects.

To attract the necessary capital, confidence in potential financial returns is crucial. Research by MSCI shows that companies in emissions-heavy sectors with a higher share of revenue from alternative energy, energy efficiency, and green buildings experienced faster earnings growth. However, a 2022 survey by Ninety One revealed that while roughly half of asset owners saw transition finance as a commercial opportunity, only 35% planned to invest in it within the next 12 months. This highlights the need for credible and rigorous transition finance models to avoid misallocation of capital that could jeopardize the Paris Agreement goals. Debt instruments like transition bonds are seen as effective tools for accountability in this complex landscape.