A new report from the University of Exeter’s Green Futures Solutions marks a significant step in the fight against environmental challenges. It applies the concept of positive tipping points to the five categories of the Earthshot Prize – nature, air, oceans, waste, and climate – for the first time. Positive tipping points refer to moments when a system undergoes a sudden and significant change, often because a critical threshold has been crossed. The report identifies solutions that could become more affordable, accessible, and attractive than the systems they aim to replace, with specific, measurable goals set for 2030 in each of these areas. One of the key insights from the report is that complex systems, such as technologies, markets, societal norms, and ecosystems, can shift dramatically once certain thresholds are reached. A well-known example is solar power, whose costs have dropped by about 90% over the past decade. This dramatic decline was driven by self-reinforcing feedback loops, where falling prices led to increased investment and innovation, further driving down costs. The report highlights three areas that could soon reach these tipping points. First, clean cooking solutions in Africa, which use pay-as-you-go financing, are becoming more accessible and affordable. These solutions could save millions of lives by reducing reliance on harmful fuels like kerosene and wood. Second, methane emission reductions, which account for about 30% of global warming, could be accelerated through satellite monitoring. Methane has a shorter lifespan in the atmosphere compared to carbon dioxide, making it easier to reduce quickly. New satellite technology can detect leaks and help address them efficiently. Third, marine-protected areas could lead to increased fish biomass and catches, supporting both ocean health and local fisheries. A global treaty aims to protect 30% of the world’s oceans by 2030, which could help achieve this. Despite these promising opportunities, the report points out that investment remains the biggest obstacle to progress. Africa, for example, receives only 3% of global clean energy financing, even though it has 60% of the world’s best solar resources. The report suggests that innovative financing models could help close these gaps and support adaptation efforts. By influencing how the Earthshot Prize identifies, selects, and supports solutions, the report aims to create conditions that trigger positive tipping points, accelerating environmental progress and helping the world meet its climate and sustainability goals.