As the world grapples with the urgent need to reduce greenhouse gas (GHG) emissions and accelerate the energy transition, investment treaties have emerged as an unexpected obstacle. These treaties, originally designed to protect foreign investments, now shelter significant amounts of emissions, slowing down climate action and putting net-zero goals at risk. Researchers estimate that around 2 gigatonnes of GHG emissions are effectively protected by such treaties annually, making them a formidable barrier to decarbonisation efforts.

At the core of the issue are Investor-State Dispute Settlement (ISDS) provisions. These clauses allow foreign investors, particularly fossil fuel companies, to sue governments when environmental policies impact their profits. Governments can face multimillion-dollar lawsuits for enacting policies meant to reduce fossil fuel reliance or promote clean energy, leading to a chilling effect on climate policy reform.

For example, governments pushing for phase-outs of coal or the rapid adoption of renewable energy can be sued if their decisions negatively affect existing fossil fuel projects. This creates a paradox where countries committed to climate action, such as members of the G7, are simultaneously protecting investments that perpetuate emissions. Nations like the UK, Spain, and France have some of the most extensive fossil fuel protections embedded in these treaties, despite publicly advocating for stronger climate action.

The energy transition is heavily undermined by the legal and financial risks associated with ISDS claims. Energy companies can file lawsuits for compensation, with some cases costing governments billions of dollars. This has led many countries to reconsider or delay policy decisions essential for achieving net-zero targets. For instance, recent studies highlight how certain treaties prevent governments from taking swift action to phase out fossil fuel projects or regulate greenhouse gas emissions without facing potential legal action.

Moreover, energy transition policies, such as the rapid adoption of renewable energy infrastructure, are often delayed or modified to avoid disputes under these investment treaties. As a result, fossil fuel projects continue to receive protection and financial backing, while clean energy projects face slower implementation due to the legal barriers these treaties impose.

To address the issue, there is growing momentum to reform or terminate these investment treaties. Climate advocates and policymakers argue that governments must renegotiate the terms of ISDS clauses, particularly those protecting fossil fuel interests. Some proposals include excluding fossil fuel investments from treaty protections, especially in industries that contribute to significant greenhouse gas emissions. Other suggestions call for creating alternative dispute resolution mechanisms that balance investor rights with the need for urgent climate action.

In recent years, several countries have begun withdrawing from treaties like the Energy Charter Treaty (ECT), which is notorious for shielding fossil fuel investments. This is a step in the right direction, but more coordinated action is needed on a global scale. Climate discussions, such as those at COP summits and G20 meetings, should integrate the need for investment treaty reform into their agenda.

Achieving global net-zero goals requires removing the legal protections that prevent governments from effectively regulating the fossil fuel industry. Reforming investment treaties to allow for bold climate action without the fear of costly lawsuits is essential for the global energy transition. The international community must act swiftly to address this issue, ensuring that legal frameworks are aligned with the urgent need to mitigate climate change.