TL;DR: Net zero is the state in which the greenhouse gases an entity emits are balanced by an equivalent amount permanently removed from the atmosphere. The global climate-science target is to reach this balance by 2050. As of 2026, 137 national governments and 10,000 SBTi-validated companies have set net-zero targets, but only 11% of large enterprises are reducing emissions in line with their stated ambition (BCG, 2024). Closing that gap increasingly depends on AI-powered measurement, simulation, and reporting infrastructure.

Key takeaways

• Net zero requires cutting greenhouse gas emissions as close to zero as possible, then permanently removing the residual from the atmosphere — it is not the same as "carbon neutral", which can be achieved through offsets alone.

• 137 of 198 national governments have adopted a net-zero target, covering 74% of global GHG emissions and 77% of global GDP (Net Zero Tracker, September 2025).

• 10,000 companies now have SBTi-validated targets aligned with the Corporate Net-Zero Standard, a tenfold increase since 2021 (Science Based Targets initiative, January 2026).

• The world is currently 1.2°C above pre-industrial levels; staying below 1.5°C requires emissions to fall 45% by 2030 and reach net zero by 2050 (United Nations).

• Companies that use AI in their decarbonization programmes are 4.5× more likely to achieve significant emissions-reduction benefits (BCG/CO2 AI, 2024).

Introduction

Net0 is an AI infrastructure company that builds AI solutions for governments and global enterprises, with a sustainability platform used by 400+ entities to measure, plan, report, and verify their path to net zero. This article explains what "net zero" means in 2026 — the definition, the science, the global target landscape, and the practical framework enterprises and public-sector bodies use to get there. Net zero is no longer an aspirational pledge: it is a regulated obligation under CSRD/ESRS, IFRS S1 and S2, and the SEC climate disclosure rule, and an investor-facing benchmark scored through CDP, the GRI Standards, and the Science Based Targets initiative.

What is net zero?

Net zero is the condition in which the volume of greenhouse gases (GHGs) an entity releases into the atmosphere over a defined period is matched by an equivalent volume permanently removed from the atmosphere — leaving net additions of zero. The Intergovernmental Panel on Climate Change (IPCC) defines this as the threshold beyond which human activity stops adding to the cumulative stock of warming gases.

GHGs covered by a credible net-zero target include the seven gases tracked by the GHG Protocol: carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF₆), and nitrogen trifluoride (NF₃). Each is normalised into CO₂-equivalent (CO₂e) tonnes using its 100-year global warming potential.

A genuine net-zero target has three components:

1. Deep absolute emissions cuts across Scope 1, 2, and 3 — typically a 90–95% reduction by the target year under the SBTi Corporate Net-Zero Standard.

2. Permanent removals to neutralise the small residual that cannot be eliminated, using verified carbon-removal methods (afforestation, BECCS, direct air capture, soil carbon sequestration).

3. Transparent annual reporting against an interim 2030 target and a long-term decarbonization pathway aligned with 1.5°C.

Net zero, carbon neutral, and gross zero compared

These three terms are often conflated, but they have material differences for compliance, investor reporting, and consumer claims.

Carbon neutral is a state where an entity's emissions are balanced by an equivalent amount of compensation, typically through purchased carbon credits or offsets. Carbon neutrality does not require absolute emissions cuts — a company can in theory be carbon neutral while continuing to grow its gross emissions, provided it buys enough offsets. Most carbon-neutral certifications (e.g. PAS 2060) cover Scope 1 and 2 with Scope 3 optional.

Net zero is a more rigorous standard. Under the SBTi Corporate Net-Zero Standard, a company must cut absolute emissions by 90–95% across all three scopes — including its full value chain — and only then neutralise the residual with high-quality permanent removals. Avoidance offsets alone do not qualify.

Gross zero (or absolute zero) is the theoretical state of producing zero emissions at the source, with no residuals to neutralise. Few sectors can credibly target this; it is most relevant to power generation and certain process industries.

In short: carbon neutrality is a destination most can buy their way to. Net zero requires structural decarbonization. Gross zero is a long-term ceiling for specific industries.

Why net zero matters: the 1.5°C science

Earth is currently 1.2°C warmer than the late-1800s baseline (United Nations). The Paris Agreement, signed by 196 parties in 2015, commits signatories to limit warming to "well below 2°C" with efforts to stay under 1.5°C. The IPCC's Sixth Assessment Report concluded that holding to 1.5°C requires global emissions to fall 45% by 2030 versus 2010 levels, and reach net zero by 2050.

Every fraction of a degree carries non-linear consequences. A 2°C world has roughly twice the population exposed to severe heatwaves, a Mediterranean basin shifted to a permanent drought regime, and Arctic summer sea ice gone in most years rather than once a decade (IPCC AR6 WG1). The economic case is equally direct — physical climate damages and stranded fossil assets translate into balance-sheet risk for any enterprise with a 20+ year planning horizon.

The state of net zero in 2026

According to the Net Zero Stocktake 2025 published by the Net Zero Tracker:

• 137 of 198 national governments (including the EU and Taiwan) have adopted net-zero targets.

• These commitments cover 74% of global GHG emissions, 77% of global GDP (PPP), and 79% of the world's population.

• 67% of country targets are now codified in law or formal policy, up from 52% in 2024.

• 19 of the G20 retain net-zero targets, including China (2060) and India (2070). Coverage declined slightly versus 2024 after the United States formally withdrew its federal target in 2025, although 19 US states continue to pursue net zero independently.

• 1,245 publicly listed companies in the Forbes Global 2000 have set net-zero targets, up from 417 in December 2020.

The Science Based Targets initiative validated its 10,000th company in January 2026 — the gold-standard mark of a credibly designed corporate target. More than 3,000 of those validations occurred in 2025 alone, and over 40% of 2025 validations came from Asia, with Japan now the country with the most SBTi-validated companies. The Race to Zero campaign, the UN-backed coalition of non-state actors, has expanded to 15,700+ members across 150 countries.

The momentum is real but the gap is also real. Climate Action Tracker concludes that even if every existing national target is met on schedule, residual emissions in target years would still equal 19–22% of 2019 emissions — well above true zero. And BCG's 2024 survey of nearly 2,000 large companies found that only 9% comprehensively report Scope 1, 2, and 3 emissions, only 16% have set targets across all three scopes, and just 11% are actually reducing emissions in line with their stated ambitions.

National pathways to net zero

National-level decarbonization pathways consistently rely on a small set of structural shifts identified by the International Energy Agency (IEA) Net Zero by 2050 roadmap:

• Power decarbonization. Renewables and nuclear scaling to provide 70–85% of electricity by 2050. Tripling global renewable capacity by 2030 was committed at COP28.

• Electrification of end-use. Transport, heating, and industrial processes shifting from direct fossil combustion to electricity, with electric vehicles and heat pumps as the dominant new assets.

• Built environment retrofit. Buildings are responsible for approximately 37% of global energy-related emissions; deep retrofitting and zero-carbon new construction are essential.

• Industrial transformation. Hydrogen for steel and chemicals, electrified heat, carbon capture and storage (CCS) for cement and other unavoidable process emissions.

• Engineered and nature-based removals. Reforestation, soil carbon, BECCS, and direct air capture to handle residuals.

• Methane and other non-CO₂ gases. The Global Methane Pledge — signed by 159+ countries — targets a 30% reduction by 2030 versus 2020 levels.

The transition is highly capital-intensive but largely commercial. The IEA estimates global clean-energy investment needs to triple to roughly $4.5 trillion per year by 2030 to remain on a 1.5°C pathway.

The 5-step corporate net zero framework

The credible corporate path to net zero compresses into five sequential capabilities. Net0's sustainability platform is built around this exact sequence.

Step 1 — Measure

A net-zero programme is only as accurate as its underlying emissions inventory. This means a comprehensive carbon footprint covering Scope 1 (direct), Scope 2 (purchased energy), and Scope 3 (value chain) emissions. Scope 3 is the hardest and most material — for most enterprises it is 70–90% of total emissions, as detailed in Scope 3 myths and realities.

The choice of carbon accounting methodology determines accuracy. Activity-based data (litres of fuel, kilowatt-hours, tonne-kilometres of freight) is roughly an order of magnitude more accurate than spend-based estimation. Best-practice programmes use automated data collection from operational systems — ERP, energy meters, fleet telematics, supplier invoices — rather than annual spreadsheets.

Step 2 — Reduce

Once measured, emissions become a planning surface. Reduction at scale means setting SBTi-validated targets — typically a 4.2% absolute reduction per year for 1.5°C alignment — then sequencing initiatives across operations, energy procurement, fleet electrification, supply-chain engagement on upstream emissions, and product-level redesign.

The strongest decarbonization strategies treat carbon as a financial variable, modelling the marginal abatement cost of every initiative and prioritising those with positive net present value. BCG calls this profitable decarbonization; their 2024 survey found 25% of companies achieving annual decarbonization benefits worth more than 7% of revenue, averaging $200 million per year.

Step 3 — Remove

A small residual will remain even after deep cuts — typically 5–10% of the baseline footprint for industrial companies. Under the SBTi Corporate Net-Zero Standard, these residuals must be neutralised with permanent carbon removals, not avoidance offsets. Acceptable methods include afforestation and reforestation with long-term protection, soil carbon sequestration, bioenergy with carbon capture and storage (BECCS), and direct air capture. Retired carbon credits must be additional, verified, and free of double-counting.

Step 4 — Report

Disclosure has moved from voluntary to statutory in most major economies. The 2026 reporting landscape includes:

• CSRD and ESRS. Mandatory in the EU. The March 2026 Omnibus revision raised thresholds to >1,000 employees AND >€450M turnover; in-scope groups must publish digitally tagged double-materiality reports with limited assurance, moving to reasonable assurance by 2028.

• IFRS S1 and S2. The ISSB global baseline being adopted in jurisdictions including the UK, Australia, Brazil, Singapore, and Canada.

• SEC climate disclosure. Phased Scope 1/2 and material climate-risk reporting for US registrants.

• CDP and GRI Standards. Investor-facing voluntary disclosure with growing interoperability with the ESRS and IFRS standards.

• ESG and sustainability reports. Increasingly integrated into the management report rather than published as standalone PDFs.

The technical bottleneck is multi-framework consistency: the same emissions data point has to be tagged differently for ESRS XBRL, IFRS, CDP, and SBTi progress reports.

Step 5 — Verify

Independent third-party assurance has become non-negotiable. CSRD requires limited assurance from registered statutory auditors (or accredited Independent Assurance Service Providers in some Member States) from the first reporting year, moving to reasonable assurance — the same level as financial audit — by 2028. SBTi-validated targets require annual progress disclosure. A net-zero certificate without independent audit carries no weight with investors or regulators in 2026.

AI's role in corporate decarbonization

A 2023 BCG–Google study estimated that AI could enable mitigation of 5–10% of global GHG emissions by 2030 — equivalent to 10–20% of the IPCC's interim 2030 reduction target. The 2024 BCG/CO2 AI survey of nearly 2,000 large companies found those using AI in their decarbonization programmes were 4.5× more likely to achieve significant decarbonization benefits than those that did not.

AI's role in corporate net-zero programmes concentrates in six high-leverage areas:

• Automated data collection from thousands of operational systems — invoices, IoT meters, ERPs, fleet telematics, supplier portals — replacing manual annual spreadsheets.

• Scope 3 modelling that estimates upstream and downstream value-chain emissions where direct supplier data is missing, using activity proxies and machine-learning categorisation.

• Decarbonization simulation: marginal abatement cost curve (MACC) generation, scenario modelling for renewable PPAs, fleet conversion, and capex sequencing.

• Predictive forecasting of emissions trajectories versus SBTi-aligned targets, flagging deviations early enough to act.

• Multi-framework reporting: a single emissions dataset tagged automatically for ESRS, IFRS, CDP, GRI, GHG Protocol, and SBTi progress reports.

• Anomaly detection in real-time emissions feeds — catching equipment faults, billing errors, and operational drifts that traditional annual reporting misses.

These capabilities turn carbon from a once-a-year ESG report into a real-time operational signal, the same way financial AI turned monthly close into continuous accounting.

Net0's net zero infrastructure for enterprises and governments

Net0 is an AI infrastructure company that operates across four verticals — AI for sustainability, government AI, AI infrastructure, and business AI solutions — with a sustainability platform deployed at 400+ entities including Fortune 500 companies and national governments.

For corporate and public-sector net-zero programmes, Net0 provides:

• AI-automated emissions measurement across Scope 1, 2, and 3, with 10,000+ pre-built integrations and 50,000+ emission factors covering activity-based, spend-based, and hybrid methodologies.

• Decarbonization simulation tools that generate marginal abatement cost curves and model the carbon and financial impact of strategy options before commitment.

• Multi-framework reporting spanning 30+ standards including the GHG Protocol, ESRS, IFRS S1 and S2, CDP, GRI, and SBTi progress reports, with audit-ready data lineage.

• Real-time dashboards for executives, sustainability teams, and operations, with anomaly detection and target-progress alerts.

• Sovereign and hybrid deployment for regulated industries and government clients, keeping emissions data within national borders where required.

Net0's positioning is structurally different from legacy carbon-management tools: the platform is AI-first, built from the ground up for institutional-scale data complexity, rather than a spreadsheet workflow with AI features added later.

Book a demo to see how Net0 supports a measurable path to net zero for global enterprises and public-sector institutions.

Frequently asked questions

Is achieving net zero by 2050 still possible?

Yes, but only on aggressive trajectories. The IPCC concluded in AR6 that 1.5°C-aligned pathways still exist but require global emissions to peak immediately and fall 45% by 2030. The remaining "carbon budget" consistent with 1.5°C was approximately 250 GtCO₂ as of 2024 and is being depleted at roughly 40 GtCO₂ per year. Without a sharp acceleration this decade, 2050 net zero implies overshoot followed by net-negative emissions, which would require far larger removals.

What is the difference between net zero and carbon neutral?

Net zero requires deep absolute emissions cuts — typically 90% across Scopes 1, 2, and 3 under the SBTi Corporate Net-Zero Standard — followed by permanent removals for the residual. Carbon neutral requires only that emissions are balanced by purchased offsets, with no obligation to reduce gross emissions, and Scope 3 is typically optional. Net zero is the more rigorous and increasingly the regulator-recognised standard.

Does net zero mean producing no emissions at all?

No. Net zero permits a small residual — typically 5–10% of the baseline footprint — provided it is permanently removed from the atmosphere through verified carbon-removal methods. The goal is balance, not absence. Gross zero (or absolute zero) is the separate concept of producing no emissions at the source.

What countries have set net zero targets?

As of September 2025, 137 of 198 national governments have adopted net-zero targets, covering 74% of global GHG emissions and 77% of global GDP (Net Zero Tracker, 2025). Targets include China (2060), India (2070), the EU (2050), the UK (2050), Japan (2050), and most other G20 members. The United States withdrew its federal target in 2025, although 19 US states continue to pursue net zero independently.

How does AI help companies reach net zero?

AI accelerates each step of the corporate net-zero workflow: automating emissions data collection from thousands of systems, modelling Scope 3 supply-chain emissions, generating marginal abatement cost curves for reduction planning, forecasting trajectory versus targets, and producing compliant outputs for multiple frameworks from a single dataset. BCG's 2024 survey found AI-using companies were 4.5× more likely to achieve significant decarbonization benefits.

What is the SBTi Corporate Net-Zero Standard?

The Science Based Targets initiative Corporate Net-Zero Standard is the leading framework for credible corporate net-zero targets. It requires near-term targets — typically a 4.2% absolute annual reduction across Scopes 1, 2, and 3 validated against a 1.5°C pathway — and long-term targets reducing 90% of value-chain emissions by 2050, with the residual neutralised through permanent removals. As of January 2026, more than 10,000 companies have validated targets through the SBTi.

Is net zero mandatory for businesses?

In most major economies the underlying disclosure is now mandatory even where the target itself is not. CSRD and ESRS in the EU, IFRS S2 across multiple jurisdictions, the SEC climate disclosure rule in the US, and California's SB-253 all require enterprises above defined thresholds to publish audited Scope 1, 2, and (in most cases) Scope 3 emissions data, transition plans, and climate-related financial risks. A formal net-zero target is the natural strategic response to the data this regime makes public.

Related climate change terms

• 1.5°C aligned: A target consistent with limiting warming to 1.5°C above pre-industrial levels.

• Anthropogenic emissions: Greenhouse gases released by human activity rather than natural sources.

• Carbon negative / climate positive: Removing more CO₂ from the atmosphere than the entity emits.

• Carbon neutral: A balance achieved through offsets, without a binding requirement to cut gross emissions.

• Carbon removal: Capturing CO₂ from the atmosphere through nature-based methods (forests, soils, wetlands) or engineered methods (BECCS, direct air capture).

• Climate-neutral: A broader standard than carbon-neutral, accounting for all GHGs and sometimes other climate forcings.

• Insetting: Carbon-reduction projects implemented within an entity's own value chain rather than purchased externally.

• Net zero by 2050: The international goal of reaching balance between GHG emissions and removals globally by mid-century.

• Neutralisation: Removing residual emissions from the atmosphere to bring net additions to zero.

• Paris Agreement: The 2015 UNFCCC treaty committing parties to limit warming to well below 2°C, pursuing efforts to stay under 1.5°C.

• Race to Zero: The UN-backed coalition of non-state actors pledging to halve emissions by 2030 and reach net zero by 2050.

• Residual emissions: The portion of emissions that cannot be eliminated and must be neutralised through removals.

• Science-based target: An emissions-reduction target validated by the SBTi as consistent with 1.5°C pathways.

For the full glossary of carbon-management terms, see Net0's carbon management glossary.