Global Warming Forecast to Reach 2.3°C as Net Zero Slips to 2098
<p>Global temperatures may rise by around 2.3°C above pre-industrial levels this century. That forecast comes from the United Nations Environment Programme's latest assessment of national climate commitments. Consequently, the world now faces the prospect of net-zero emissions arriving closer to 2098 rather than the widely recognised 2050 target. For UK businesses navigating net-zero requirements, supply chain expectations and public procurement rules, these projections matter. They signal a longer, more uncertain transition with escalating physical and regulatory risks.</p>
<p>The gap between stated ambition and delivered action continues to widen. Meanwhile, the climate consequences of delayed mitigation become harder to reverse. Understanding what these numbers mean in practice helps businesses prepare for both policy change and physical disruption.</p>
<h2>Net-zero delayed until 2098 under current plans</h2>
<p>UNEP's 2025 emissions gap report shows that current national commitments would push global net-zero achievement back nearly five decades. This timeline assumes governments fully implement their nationally determined contributions submitted by September 2025. These NDCs cover approximately 63% of global greenhouse gas emissions. However, full implementation remains uncertain in many cases.</p>
<p>If countries deliver only policies already in force, rather than all announced pledges, warming could reach 2.8°C. The difference between policy and promise is substantial. It represents the gap between legislation passed and ambition declared. For businesses, this creates planning uncertainty. Regulatory timelines may tighten suddenly if governments attempt to close the gap later.</p>
<p>Net-zero does not mean all emissions stop. It means remaining emissions are balanced by removal from the atmosphere through natural sinks or technology. Reaching that balance in 2098 allows far more cumulative carbon dioxide to accumulate than a 2050 pathway. Therefore, peak warming would be higher and climate impacts more severe.</p>
<p>The 2.3°C projection sits well above the Paris Agreement's goal of holding warming to well below 2°C. It also exceeds the aspirational 1.5°C limit by a significant margin. Each additional tenth of a degree increases the frequency and intensity of extreme weather, agricultural disruption and infrastructure damage. The difference between 1.5°C and 2.3°C is not academic for businesses facing supply chain fragility or physical asset risk.</p>
<h2>How the 2.3°C forecast compares to previous estimates</h2>
<p>UNEP's previous assessment projected 2.6°C to 2.8°C of warming if current pledges were implemented. The latest figure represents a modest improvement. However, roughly 0.1°C of that reduction comes from methodological updates rather than stronger policy action. Another 0.1°C of potential reduction could be lost if the United States withdraws from the Paris Agreement framework as anticipated.</p>
<p>UN Secretary-General António Guterres acknowledged the progress but emphasised its limits. He noted that while warming projections have fallen from 2.6°C to 2.3°C, the reduction remains far short of what the Paris Agreement requires. Additionally, he warned that a temporary breach of 1.5°C is now expected as early as the 2030s. This refers to the multi-decadal global average, not individual hot years.</p>
<p>The 1.5°C threshold is defined over long-term averages. Single years may exceed it without triggering the threshold formally. Nevertheless, the frequency of such exceedances is increasing. UNEP now considers a temporary overshoot of 1.5°C likely, with the policy focus shifting to minimising its scale and duration. Returning warming below 1.5°C by 2100 remains theoretically possible but would require immediate, steep emission cuts.</p>
<p>Record global temperatures, rising greenhouse gas concentrations and continued growth in emissions from energy, industry and transport all compound the challenge. Delayed action increases reliance on carbon dioxide removal later in the century. Large-scale removal through technology or nature-based solutions remains uncertain in terms of cost, scalability and environmental impact.</p>
<h2>What emission reductions are needed to meet Paris targets</h2>
<p>The Paris Agreement requires emissions to fall sharply this decade. UNEP estimates that global emissions in 2035 must be 35% below 2019 levels to align with a 2°C pathway. A 1.5°C pathway requires emissions 55% below 2019 levels by the same date. Current national plans fall well short of both benchmarks.</p>
<p>An alternative scenario modelled by UNEP assumes rapid mitigation starting in 2025. Under that pathway, emissions would need to decline by 26% by 2030 and 46% by 2035, both compared with 2019 levels. This trajectory could limit the peak temperature overshoot to around 0.3°C. It would also preserve a narrow possibility of returning warming to 1.5°C by 2100, though UNEP describes this as extremely difficult.</p>
<p>Achieving these reductions demands accelerated renewable energy deployment, improved energy efficiency, reduced methane and other non-CO2 emissions, halted deforestation, electrified transport and industry, and rapid phase-down of unabated fossil fuels. Carbon dioxide removal may eventually be necessary to address residual emissions and produce net-negative emissions. However, heavy reliance on future removal technologies carries significant risks given the uncertainty around their deployment at scale.</p>
<h2>Physical and commercial risks intensify at 2.3°C</h2>
<p>The difference between 1.5°C, 2°C and 2.3°C is not merely symbolic. Higher warming increases the intensity and frequency of climate hazards. For UK businesses, this translates into direct operational risks and indirect pressures through supply chains, insurance costs and regulatory expectations.</p>
<p>Heatwaves become more frequent and severe. Infrastructure designed for historical temperature ranges may fail more often. Cooling costs rise. Worker productivity falls during extreme heat events. Additionally, heavy rainfall and flooding intensify. Drainage systems, factories and logistics hubs face greater disruption. Coastal sites experience accelerated sea-level rise and storm surge damage.</p>
<p>Agricultural supply chains face mounting pressure. Drought, shifting growing seasons and extreme weather reduce crop yields and increase price volatility. Water scarcity affects production processes reliant on consistent supply. Biodiversity loss and ecosystem degradation undermine natural services such as pollination, water filtration and flood regulation. Economic damage and displacement increase, particularly in vulnerable regions that form part of global supply networks.</p>
<p>For businesses, these risks are not distant. They affect asset valuations, lending conditions, insurance premiums and tender requirements. Public procurement rules increasingly require suppliers to demonstrate climate resilience and emissions reduction. <a href="https://sbs.eco/net-zero-program/">Carbon reporting and PPN 06/21 compliance</a> have become standard expectations for companies bidding on government contracts. A 2.3°C pathway implies prolonged exposure to these risks with fewer options for adaptation.</p>
<p>Delayed net-zero achievement also means sustained regulatory uncertainty. Governments may impose abrupt policy changes if they attempt to correct course later. Carbon pricing, sector-specific mandates and trade measures such as the EU's Carbon Border Adjustment Mechanism could tighten suddenly. Businesses that defer emissions reduction may face higher compliance costs and competitive disadvantage.</p>
<h2>Key facts from the UNEP emissions gap report</h2>
<ul>
<li>Current national commitments could limit warming to approximately 2.3°C by 2100, down from earlier projections of 2.6°C to 2.8°C.</li>
<li>If governments implement only existing policies rather than all pledges, warming could reach around 2.8°C this century.</li>
<li>National climate plans submitted by September 2025 cover roughly 63% of global greenhouse gas emissions.</li>
<li>Emissions in 2035 need to be 35% below 2019 levels for a 2°C pathway and 55% below for a 1.5°C pathway.</li>
<li>A temporary overshoot of 1.5°C is now likely, potentially beginning in the early 2030s.</li>
<li>Approximately 0.1°C of the reduction in warming projections comes from methodological updates, with another 0.1°C potentially lost if the United States withdraws from the Paris Agreement.</li>
<li>An accelerated mitigation pathway starting in 2025 could limit peak overshoot to around 0.3°C but would require emissions to fall 26% by 2030 and 46% by 2035.</li>
</ul>
<h2>What UK businesses should consider now</h2>
<p>The projection of net-zero in 2098 does not describe an inevitable outcome. It reflects the consequences of current policy settings and implementation assumptions. However, businesses cannot wait for governments to close the gap. Commercial pressures, supply chain expectations and regulatory requirements are already shifting faster than international climate negotiations.</p>
<p>First, understand your baseline. Accurate emissions measurement across Scopes 1, 2 and 3 remains the foundation of credible climate strategy. Many businesses underestimate Scope 3 emissions from purchased goods, transport and end-of-life treatment. <a href="https://sbs.eco/compliance/">Compliance with emerging ESG reporting standards</a> requires detailed, verifiable data. Without it, you cannot identify reduction priorities or demonstrate progress to customers and investors.</p>
<p>Second, assess physical risk exposure. Map your operations and supply chains against projected climate hazards. Identify critical dependencies on water, energy and transport infrastructure. Consider how temperature, precipitation and extreme weather patterns may change over asset lifetimes. Build resilience planning into capital investment decisions now rather than retrofitting later at higher cost.</p>
<p>Third, align procurement with net-zero expectations. Public sector contracts increasingly require carbon reduction plans and evidence of progress. Private sector supply chains are following suit. Companies that demonstrate credible emissions reduction and resilience planning gain competitive advantage in tenders. Those that delay may find themselves excluded from contracts or facing additional costs to meet supplier requirements.</p>
<p>Fourth, engage with <a href="https://sbs.eco/net-zero-hub/">structured net-zero programmes</a> that provide clear pathways and support. Isolated initiatives often fail to achieve systemic change. Comprehensive programmes help businesses set science-based targets, identify cost-effective interventions and navigate evolving regulations. They also provide access to peer networks and shared learning, reducing the resource burden on individual companies.</p>
<p>Finally, recognise that delay increases cost. Early action typically offers more flexibility and lower expense than emergency measures imposed later. Businesses that start now can phase investments, capture efficiency savings and access transition funding. Those that wait may face sudden regulatory shifts, stranded assets and higher capital costs as markets reprice climate risk.</p>
<p>The UNEP report confirms that current trajectories remain inadequate. However, it also shows that stronger commitments and faster implementation can still reduce warming. Businesses that treat this as a planning signal rather than a distant threat will be better positioned for both the risks and opportunities ahead.</p>
<h2>Where to find authoritative guidance and data</h2>
<p>The <a href="https://www.unep.org/resources/emissions-gap-report-2024">UN Environment Programme emissions gap report</a> provides the most comprehensive annual assessment of the gap between national commitments and Paris Agreement targets. It includes detailed analysis of sectoral pathways and policy options.</p>
<p>The <a href="https://www.gov.uk/government/organisations/department-for-energy-security-and-net-zero">Department for Energy Security and Net Zero</a> publishes UK-specific climate policy, carbon budgets and sector guidance. This includes updates on domestic emissions targets and support schemes for businesses.</p>
<p>The <a href="https://www.theccc.org.uk/">Climate Change Committee</a> produces independent progress reports on UK emissions reduction and adaptation. Its analysis covers sectoral performance, policy effectiveness and recommendations for accelerating action.</p>
<p>For businesses seeking practical support with carbon measurement, reduction planning and compliance, specialist consultancies offer structured programmes tailored to SME needs. These services help translate high-level climate science into actionable business strategy and demonstrate progress to customers, investors and regulators.</p>