If we are to separate climate change talk from the actual carbon emissions data, an unpleasant picture emerges: emissions have increased globally by 40% since 1992, the year when U.N. Framework Convention on Climate Change (UNFCCC) was adopted. The carbon emissions curve follows the global increase in production of oil and other fossil fuels. This should not come as a surprise – almost all extracted crude ends up in internal combustion engines, and eventually, in the atmosphere in the form of green house gases (GHGs). The status quo is unlikely to change as long as oil remains the backbone of the world’s economy. In fact, according to some forecasts, oil production will be on a rise for several decades. Significant financial investments will be required to accommodate this trend. Investments in oil production are often heralded as the means of achieving important and even noble causes such as providing jobs, ensuring energy independence, and keeping the lights on. However, there is another dimension of investing in oil rigs and tankers – every cent creates a financial incentive for keeping the economy’s carbon content high and GHG emissions steady. As the 40% increase in emissions illustrates, the current domestic and international carbon controls have thus far failed to end our dependence on fossil fuels. The global landscape is a complex system where some non-state actors have more control over carbon emissions than some states, and where some states with aggressive emission reduction goals have strong incentives to continue the status quo. Therefore, any approach to reducing GHGs that focuses predominately on the demand side of the equation is unlikely to propel the world toward a low-carbon economy. The overarching goal of this paper is to introduce the concept of the Carbon Detriment on Investment (CDI). CDI is a decision-making tool that measures the amount of carbon (in CO2 equivalent) that needs to be emitted over a period of time to receive a desired return on investment. Essentially, CDI provides a quantitative and temporal assessment of our financial dependence on fossil fuel-based infrastructure. CDI differs from carbon accounting and life cycle indices as it focuses on the financial interest created by an investment in an asset whose performance inevitably leads to carbon emissions. CDI is a multi-purpose tool. It provides information to investors about a company’s commitment and readiness to transition to a low-carbon economy. It helps policy makers design climate change controls without incurring economic waste. Finally, it allows a state to coordinate its domestic and international climate change mitigation policy by making better-informed investment decisions. To illustrate a possible application of CDI, I explore the development of new oil production capacity in the Russian Arctic. In particular, I analyze the CDI implications of the ongoing negotiations between the oil super major British Petroleum and Russian state oil champion Rosneft to develop three license blocs in the South Kara Sea. I explore the effect that a CDI disclosure may have on the BP’s otherwise “green” reputation. I propose including CDI into mainstream mandatory financial disclosure as means of educating investors. I also highlight the importance of knowing the CDI of a state whose economy depends on fossil fuel production by looking at geo-political consequences of investment in offshore oil exploration and production in the Russian Arctic. Finally, using the United Kingdom as an example, I explore the benefit of CDI for designing a balanced climate change policy for developed states that lead the global climate change mitigation effort. As a means of assessing national CDI, I propose a corresponding disclosure as part of national notifications under the UNFCCC.