Science-Based Targets: Why Businesses Must Cut Emissions by 2030

A Science-Based Target is, at its simplest, a commitment by a company to reduce its carbon emissions in line with what climate science says is necessary to limit global warming to 1.5°C. It’s not a self-defined ambition or a distant aspiration, it’s a pathway grounded in evidence, aligned with the expectations set by the Paris Agreement. In practice, it answers a very direct question: how much does this specific business need to reduce its emissions, and by when, to genuinely contribute to avoiding the worst impacts of climate change? 

Companies to set these targets as part of their climate strategy, making formal commitments to set science based targets that demonstrate leadership in sustainability. To be credible, a Science-Based Target must account for the full scope of a company’s emissions. This includes direct emissions from operations (Scope 1), indirect emissions from purchased energy (Scope 2), and crucially for many organisations - value chain emissions (Scope 3), which often make up the majority of a company’s footprint. Ignoring large parts of that picture isn’t an option under this framework. The aim is completeness, because partial action doesn’t align with the scale of the challenge. The framework enables companies to set science based targets that cover all relevant emissions, ensuring a comprehensive approach to reducing carbon emissions.

Time also matters. Science-Based Targets are typically set with near-term milestones, most commonly a requirement to reduce emissions by around 50% by 2030, alongside longer-term commitments to reach Net Zero by 2050. These timelines aren’t arbitrary; they reflect the pace of change required globally. For businesses, it is crucial to set emission reduction targets that are in line with the Paris Agreement, ensuring their targets in line with international climate goals. This shifts climate action from something future-facing to something immediate, where decisions made today directly shape whether those targets remain achievable.

For many businesses, Science-Based Targets are first seen as a responsibility, but increasingly, they’re proving to be a source of competitive advantage. Early adopters are often better prepared for the direction regulation, markets, and customer expectations are already moving in. Instead of reacting to change, they’re shaping it, building more resilient operations and future-proofing their strategies in a world that is steadily transitioning toward low-carbon systems. Science based targets are especially important for the private sector, where companies are expected to set emissions reduction goals and net-zero commitments tailored to their operations and value chains.

They also send a strong signal to investors. In a landscape where scrutiny around sustainability claims is growing, targets validated through third parties such as Carbon Neutral Britain, or the Science Based Targets initiative, offer something tangible and credible. They demonstrate that a company understands its risks, is aligned with global climate goals, and has a clear plan in place. That level of transparency builds confidence, particularly as climate risk becomes increasingly tied to financial performance.

There are also very practical benefits. Reducing emissions often goes hand in hand with improving efficiency, lower energy use, reduced waste, and more streamlined operations can all translate into cost savings over time. But beyond the operational, there’s a human dimension too. Companies with clear, credible climate commitments are increasingly more attractive to talent, particularly among younger generations who want their work to align with their values. And in a crowded marketplace, that authenticity becomes a point of differentiation, one that can’t be easily replicated through messaging alone. 

Setting a Science-Based Target can feel complex at first, but at its core, it’s a structured process that turns intention into accountable action. It begins with a public commitment: a clear signal that your organisation is serious about aligning with climate science. From there, the focus shifts to understanding your footprint, calculating Scope 1 and 2 emissions across operations, and then taking the more challenging but essential step of assessing Scope 3 emissions across your value chain. Getting the scope of that footprint or audit right is what makes a target credible. This is often where the full picture emerges, revealing not just where emissions sit, but where influence and responsibility extend.

Once that baseline is established, the work becomes forward-looking. Companies develop decarbonisation pathways aligned with a 1.5°C trajectory, defining how emissions will reduce over time in a way that is both ambitious and achievable. As part of this strategy, organisations are expected to set short term targets, typically covering a 5 to 10-year period, to drive rapid progress, as well as long term targets that align with the Net-Zero Standard and aim for net-zero emissions by 2050.

Turning ambition into action starts with a simple, near term plan. For many organisations, this means working within a two year window to measure emissions, set targets, and submit them for validation. This helps build early momentum and turns climate strategy into something practical, with clear milestones and accountability.

Over 1,000 businesses in the UK have turned to Carbon Neutral Britain for support on their path to net zero, including calculating Scope 1, 2 and 3 emissions, as well as offsetting and putting clear reduction plans in place.