Sustainability has long been a salient issue in health services, yet most environmental programs are centered on reduction of waste, building energy efficiency and transport logistics. The area of digital systems telehealth in particular are largely overlooked areas of health service contribution to the carbon footprint in health services. The global area of health services has a carbon footprint of 2 gigatons of CO₂ produced globally as part of this health sector per annum. Through digitalization there is an increase in proportion of carbon footprint by this sector. The energy intensity of telehealth is associated with storage of data, digital storage in cloud facilities, network bandwidth and the Internet of Medical Things (IoMT) devices, all of which are dependent in their operation on permanent energy use for aspects of operation and all need constant re–genesis of energy use and replacement of devices as well (World Health Organization, 2023). This chapter examines existing research pertaining to four domains concerned with the GTF:

Initial sustainability efforts within health concentrated on resource efficiencies and control of facilities management issues (e.g., reducing waste, increasing energy efficiency of health systems); however, the advent of telehealth changed the agenda surrounding sustainability to a greater challenge in cyberspace. The World Health Organization Climate and Health Initiative calls attention to the fact that the transition to digital health must encompass ecological sustainability ( Patel et al., 2023 ). Despite these observations, measures for assessing emissions from digital health systems remain uncoordinated or non-existent. For example, the present hospital carbon calculators don’t include in their calculations teleconsultation energy requirements or the carbon lifecycle of the ICT systems used ( Elkington, 1997 ).

The ICT industry’s environmental impact is comparable to aviation, consuming about 4% of global electricity ( Ghisellini et al., 2016 ). Green ICT initiatives (e.g., server virtualization, data centers that are solar powered, bandwidth resource management initiatives) can make a considerable impact on reducing emissions from the digital elements of the health system. For example, Edge computing can significantly improve the energy efficiency of telehealth systems, reducing energy use by up to 30%, as critical data are processed in their near vicinity rather than sent to centralized points ( Hartmann et al., 2022 ).

Similarly, circular utilization of devices emphasizing reuse of IoMT devices or recycling of the same is effective in reducing e-waste while improving device longevity ( Montesinos et al., 2024 ). However, technical solutions are inadequate without the supporting operational and governance mechanisms to ensure the sustainability of the initiative.

The governance frameworks must play a determinative role in embedding sustainability into the digital health eco-systems. As a leading example of combining digital innovation with carbon accountability, the European Commission’s Green Digital Transformation Strategy ( European Commission, 2023 ) and Australia’s Digital Health Sustainability Roadmap are employed ( Australian Government, 2023 ).

Strong leadership is also demonstrated by the United Kingdom’s National Health Service (NHS), through its Net Zero Digital Health Strategy aimed at carbon disclosure, in ICT procurement and renewable-powered data center operations ( NHS England, 2024 ). Governance thus becomes, the enabling resource to embed sustainability across whole health systems.

The theoretical framework from which the GTF is derived is based upon the Triple Bottom Line (TBL) comprising economic, social and environmental performance ( Elkington, 1997 ) and the Circular Economy (CE), turnover of resource renewal and life cycle optimization ( Ghisellini et al., 2016 ). Although previous studies have proposed sustainability performance metrics within health, most remain descriptive. The GTF goes beyond fragmented models by putting sustainability into operation through technical, operational and policy metric measures.

This raised several unanswered issues:

This justifies the rationale for a conceptual framework that integrates environmental and operational objectives forming the basis for the Green Telehealth Framework proposed in Chapter 3.

In Figure 1 , we show a conceptual timeline with a consideration of the conventional application of telemedicine for accessibility issues to the extension through the experimental and recognition of E-Health and the medical Internet of Things (information systems), through the sustainable features of digital health

(Green ICT) and environmental awareness leads to the Green Telehealth Framework which includes an emphasis on the necessity for there to be a focus on sustainable features and policy compatibility.

The literature review points out unmistakably that there is at present a discrete piecemeal approach undertaken by telehealth in regard to sustainability, particularly in so far as it relates to technology, operations and governance. There will be standalone Green ICT and policy projects in existence, but not one that addresses the three strands together in a coherent operational model ( Patel et al., 2023 ).

This Chapter introduces the Green Telehealth Framework (GTF) which is a conceptual, holistic framework for the incorporation of sustainability in all aspects of the process of telehealth which places the environmental aspect as an integral building block to the health digitalization process and not as a definition, necessarily of things that will come later.

In addition to environmental and economic performance, the GTF pillars collectively advance social sustainability objectives such as health equity, accessibility, and patient trust.

The GTF is strongly influenced by systems theory, the Triple Bottom Line (TBL) ( Elkington, 1997 ) and Circular Economy (CE) ( Ghisellini et al., 2016 ) paradigm. These three elements are taken together holistically and structured as dependent pillars, in the following way:

The interdependence of these three pillars represents the foundation of the Green Telehealth Framework (GTF) that is being recommended, as shown in more detail at Figure 2 .

Technological efficiency is the prime pillar of the GTF. It refers to everything in relation to the techno-structure, management of the hardware life cycle, and optimal data transmission, etc.

The Core Components are:

The objective is to formulate a policy of maximum telehealth growth with no proportional growth in energy used.

The second pillar is operational sustainability which seeks to integrate the environmental aspects with operational actualities.

Important duties involve:

1) Workflow optimization: elimination of superfluous teleconsults that give rise to idle systems processing.

2) Sustainable procurement: the introduction of sustainability into vendor evaluation.

3) Carbon accounting: formation of Key Performance Indicators for emissions per telecall.

4) Workforce engagement and organizational culture: are fundamental to operational sustainability. Behavioral change, digital literacy, and environmental awareness among staff form the human infrastructure of sustainable telehealth. Embedding sustainability values within daily workflows ensures ecological responsibility becomes routine, not peripheral ( European Commission, 2023 ), e.g., scheduling, device handling, and virtual-clinic etiquette, making sustainability actionable across operations.

These processes can confirm the advantage of the successful migration of sustainability awareness from technology into normality and day-to-day operational health issues of telehealth process with regard to health.

The third pillar is policy alignment and governance which is necessary for establishment of sustainability targets across the system and their scope to be somehow enlarged as necessary. Such policy initiatives may take the form of:

This policy-driven pillar ensures continuity and accountability in implementing sustainable telehealth systems.

The uniqueness of the GTF framework lies in its ability to address all three elements of sustainability. A comparative outline of the distinct differences between the types of telehealth generally available and the Green Telehealth Framework is suggested in Table 1 which compares the standard telehealth options and approaches with the GTF option.

Implementing the GTF requires a phased transition adaptable to institutional capacity:

1) Assessment: baseline audit of ICT energy and emissions.

2) Planning: target setting aligned with Net-Zero objectives.

3) Integration: embedding metrics into telehealth strategy and procurement.

4) Monitoring: tracking sustainability indicators.

5) Improvement: iterative adjustments via feedback loops ( United Arab Emirates Ministry of Health and Prevention [MOHAP], 2024 ).

The Green Telehealth Framework is an integrated basis for making digital healthcare sustainable. It is only by bringing together technological innovation, etc. It provides the basis for climate readiness and action in health care transformation.

In Chapter 4 we will investigate how the framework might apply through 3 sets of real-life case studies.

In order to validate the GTF it is proposed to set forward 3 sets of national case studies:

These countries were selected to represent distinct pathways toward sustainable telehealth. The United Kingdom exemplifies a regulation-driven model emphasizing carbon accountability; Australia represents a technology-led innovation route focusing on edge computing and rural equity; and the United Arab Emirates demonstrates an emerging-economy model integrating renewable energy and digital transformation. All three represent different routes to sustainable telehealth implementation that are compliant with GTF pillars ( Henderson et al., 2013 ).

Worldwide, over 70% of countries’ national strategies now include digital health but fewer than 25% include measurable sustainability metrics. This discrepancy represents the need for structured governance models, such as GTF (U.S. Department of Health and Human Services, 2024). All countries in Figure 3 show the global incidence of telehealth initiatives of sustainability, highlighting those countries that have thus far instituted national digital health strategies that are qualified on the dimensions of environmental performance.

World map showing 3 countries of our Case Study that have instituted sustainability-related telehealth policies and programs. In particular, observable is the NHS England Net Zero Digital Health Strategy ( NHS England, 2024 ), Australia’s Digital Health Sustainability Roadmap ( Australian Government, 2024 ) and the UAE Smart Health Vision 2031 ( United Arab Emirates Ministry of Health and Prevention, 2024 ).

Overview

The United Kingdom’s NHS launched the Net Zero Digital Health Strategy in 2020, mandating environmental accountability across ICT operations ( NHS England, 2024 ).

Key Sustainability Measures

Outcomes

By 2024, NHS England reported a 26% reduction in ICT energy use and USD 32 million annual cost savings ( NHS England, 2024 ).

Overview

The Australian Digital Health Agency (ADHA) embeds sustainability into its Digital Health Sustainability Roadmap, focusing on rural equity and energy efficiency.

Measures

Outcomes

ADHA achieved a 33% energy reduction and USD 11 million annual savings between 2022 and 2024 ( Australian Digital Health Agency, 2024 ).

Overview

The UAE’s Smart Health Vision 2031 integrates sustainability through solar-driven telehealth and AI-optimized hospital ICT ( United Arab Emirates Ministry of Health and Prevention, 2024 ).

Measures

Outcomes

From 2020 to 2024, MOHAP reported a 22% reduction in power consumption and a 45% decrease in paper-based workflows, enhancing efficiency and reducing waste ( Thiel et al., 2023 ).

All three national implementations of the Green Telehealth Framework (GTF) show that the integration of sustainability means different processes. Each system implements major changes, though through consortium-based governance structures, public sector maturity of systems and variations in aims set through the political process. As shown in Figure 4 , all three cases showed measurable environmental improvements in measured results, financial savings and improvements capable through the evolution towards a GTFs compliant structure. The NHS in the United Kingdom has already met with a 26% reduction in energy and CO₂ emissions related to the ICT environment and an effectiveness yearly improvement of approximately USD 32 million through the use of renewable-powered data centers. Australia, in the development of ADHA showed that a 33% reduction in the use of energy was translated into a yearly saving to the taxpayer of USD 11 million through the deployment of regional edge hubs based on the GTF integration model, through a process of circular procurement. The MOHAP department of the United Arab Emirates saw, since the framework was adopted, in a country with a prevailing high outdoor temperature climate almost year-round, a reduction in energy of 22% and, in paper consumption, 45% through solar-powered units of Telehealth and full digitization of Clinical workflow processes in hospitals.

These core improvement results verifying the GTF pillars of technological efficiency, operational sustainability and the required general policy adjustment recommend transferability of the GTF compliance basis relevant across a diversity of national integrative environments.

Explicit validation of GTF pillars: Australia’s success with edge computing directly validates the Technological Efficiency pillar; the United Kingdom’s supplier carbon-disclosure mandates directly validate the Policy Alignment pillar; and the United Arab Emirates’ solar-powered telehealth and paperless workflows validate the Operational Sustainability pillar.

1) Energy Performance:

Among the three, Australia demonstrated the highest relative energy efficiency gains, largely due to its decentralized edge-based infrastructure that minimized data-transmission loads.

2) Cost-Benefit Alignment:

The correlation between cost savings and energy reduction suggests that environmental performance directly enhances economic efficiency supporting the proposition that “sustainability pays back”.

3) Policy Integration:

The United Kingdom’s outcome highlights how stringent regulatory frameworks can accelerate emission reductions even in legacy ICT environments. The UAE’s top-down innovation model further illustrates how emerging economies can leapfrog toward sustainability by investing in renewable energy from the outset.

4) Scalability and Transferability:

Despite differences in governance maturity and infrastructure, each country succeeded by adapting the GTF pillars to local constraints. This adaptability underscores the framework’s global relevance for both developed and developing healthcare systems.

5) Cross-Pillar Synergy:

The strongest results emerged where all three pillars operated synergistically—technology optimization supported by operational reform and sustained through governance oversight.

Table 2 presents a comparative synthesis of findings from the three national case studies, United Kingdom, Australia, and the United Arab Emirates, mapped against the three pillars of the Green Telehealth Framework (GTF): Technological Efficiency, Operational Sustainability, and Policy Alignment.

The analysis highlights how each country demonstrates distinct yet complementary approaches:

Together, these insights validate the adaptability of the GTF model across diverse regulatory, technological, and infrastructural contexts.

In all three instances, sustainability and cost effectiveness were positively correlated, verifying the central hypothesis of the Green Telehealth Framework: that technological modernization is most effective when directed by principles of sustainability, which are shown in both operational performance and distributional ecological responsibility.

These comparative insights set the stage for Chapter 5, which further quantifies cost–benefit outcomes and explores the policy mechanisms enabling scalable implementation.

The three case studies verify that the Green Telehealth framework is both effectively experienced and potentially scalable to various regimes of governance and infrastructure metrics. All realized identifiable environmental and financial returns while upholding quality of service affording the GTF a universally transferable model of sustainability in the digital field of healthcare.

While sustainability in telehealth is largely regarded as a moral or regulatory requirement, the evidence increasingly reflects that there are also readily identifiable quantifiable financial and strategic benefits, with the introduction of green ICT infrastructures and circular procurement models leading to considerable savings while appreciably improving resilience ( Dymyt & Wincewicz-Bosy, 2024 ).

This chapter will consider the economic, environmental and policy implications of the implementation of the Green Telehealth Framework (GTF) with comparative evidence sourced from the United Kingdom, Australia and the United Arab Emirates.

The three case studies covered show that electricity optimized digital infrastructures allow a savings of 25% - 35% in electricity costs over three years of operation ( Li et al., 2025 ).

The lifecycle management of the IoMT devices’ refurbishment and reuse allows additional savings of 15% - 20% in procurement costs ( Rancea et al., 2024 ).

Additionally, the hybridization of cloud to edge infrastructures leads to low levels of data transmission costs and optimal efficient use of data bandwidth that saves an additional 10%-15% of total operational costs ( Zhai et al., 2024 ).

Collectively, the manifestation of all these benefits shows that quantifiable returns on environmental sustainability and financial prudence are mutually reinforcing rather than exclusive competing.

Implementing sustainable telehealth solutions can lead to an overall reduction of between 40% and 70%, in ICT’s total emissions (compared with conventional healthcare solutions provided in-house), particularly if these telehealth implementations are powered by renewable energy ( Patel et al., 2023 ).

A comparative summary of annual cost savings, energy savings and avoided CO₂ emissions from three national implementations of the Green Telehealth Framework (GTF).

The information presented in Table 3 indicates that by employing sustainability techniques this not only results in energy performance gains being achieved but also benefits from a costing perspective that are seen as permanent, as indicated by the established correlations between costing benefits as summarized here.

Beyond measurable financial and environmental results, Green Telehealth delivers social and ethical dividends:

1) Equitable Access: Lower costs facilitate expansion into underserved regions.

2) Workforce Productivity: Streamlined workflows and data efficiency reduce clinician fatigue.

3) Public Trust: Transparent sustainability reporting enhances patient confidence and system credibility ( Mennella et al., 2024 ).

In this sense, Green Telehealth strengthens both the ethical and operational pillars of healthcare sustainability.

The long-term, system-wide economic and environmental benefits from Green Telehealth can be realized through solid policy framing. The Green Telehealth Framework (GTF) indicates that these cost-benefit successes can only be achieved if the necessary political frameworks exist to ensure that the economic incentives operate hand-in-hand with the sustainability obligations. The following are the political tools, identified in Table 4 , that are critical enablers towards the full scaling of sustainable telehealth practices at a global level.

The financial breakeven for sustainable telehealth typically occurs within 2.5

years. For policies which are targeted towards reducing the initial capital barrier to entry or facilitating the narrowing of the time-frame possible for the take-up of this telehealth sustainability process to be achieved, i.e., tax concessions, grants, loan subsidies, there exist possibilities for further narrowing of the time which it takes to reach the breakeven point allowing returns to have net positive yield much more rapidly.

For example:

These instruments collectively transform sustainability from a voluntary effort into a structured economic strategy, ensuring that environmental responsibility is tied directly to financial viability.

Reinforcement of linking the policy tools with the economic benefits has been developed fully, reinforcing the main argument in this paper:

“Sustainability in telehealth is self-reinforcing once the right policy environment is in place; financial and environmental gains compound over time.”

Thus, Table 3 and Table 4 present a dual narrative: policy intervention accelerates economic payoff, while economic efficiency validates policy sustainability goals.

Key challenges remain:

Addressing these requires intersectoral collaboration and consistent regulatory oversight.

A long-term return on investment for green telehealth will follow a delayed benefit curve where initial infrastructure costs will be balanced by cumulative savings within 2 to 3 years.

The relationship between sustainability investment and cumulative benefit over time is shown in Figure 5 which shows the point where operational savings become

greater than the initial infrastructure costs.

A conceptual line graph shows how initial sustainability investment expenses (initial cost curve) relate to complete operational and environmental cost reductions (savings curve) during five years. The intersection reaches the breakeven point during years 2 to 3 when green telehealth becomes profitable and starts generating positive results in terms of cost savings and energy efficiency.

The research demonstrates that sustainability generates financial advantages for organizations that extend their planning horizon to a medium-term perspective.

The embedding of the Green Telehealth Framework in national digital health strategies ensures that there is synergy with larger sustainability frameworks such as the Paris Agreement, UN SDGs and Net-Zero 2050 targets. Public-private partnerships help speed up the adoption of the green telehealth model through combined efforts to develop new technologies and share infrastructure costs.

The Green Telehealth Framework shows environmental value through policy assessment and demonstrates both financial stability and political workability. Telehealth can serve as a model for health sector innovation through policy instruments that create sustainability frameworks and function as tools to carry out climate change actions.

The successful deployment of sustainable telehealth systems needs appropriate policy instruments to carry out their implementation. The measures decrease investment risks while making investors more responsible and encouraging new solutions that help reach Net-Zero targets. The strategic use of these instruments results in shorter breakeven periods which generate enduring value for healthcare organizations and economic and environmental sectors.

Historically, digital transformation and sustainability were treated as separate domains—one focused on efficiency, the other on ethics. The GTF demonstrates that these can be unified into a single operational paradigm, where every digital advancement contributes to environmental goals ( Rancea et al., 2024 ).

Energy-aware computing, low-carbon networks, and eco-designed devices prove that environmental and economic performance can converge under properly aligned policy and technology ecosystems.

Hospitals and telehealth agencies can adopt the GTF as a strategic tool for assessing sustainability readiness. Embedding carbon tracking and energy KPIs within digital performance dashboards promotes transparency and accountability.

Governments can reinforce GTF adoption through mandatory sustainability reporting, green ICT incentives, and renewable procurement policies.

Such measures align healthcare objectives with national environmental strategies ( Singh & Rodriguez, 2023 ).

Manufacturers and software vendors can design low-power AI algorithms, modular hardware, and biodegradable medical sensors, contributing to lifecycle sustainability and compliance readiness ( Pereno et al., 2015 ).

The GTF contributes to academic discourse in four ways:

1) Integrates Green ICT, Circular Economy, and Governance theory into a unified framework.

2) Provides measurable performance indicators linking environmental and clinical outcomes.

3) Demonstrates cross-sector scalability through international case validation.

4) Establishes sustainability as a theoretical extension of telehealth quality.

Despite its strengths, several limitations exist:

The next phase of research should:

1) Develop standardized carbon metrics for telehealth.

2) Explore AI-based predictive sustainability models.

3) Study behavioral influences on digital energy use among clinicians and patients.

4) Test GTF implementation in resource-limited regions.

5) Create open-source tools for lifecycle impact assessments.

These studies will help refine GTF’s robustness and global adaptability.

The future of telehealth lies in sustainable digital ecosystems.

By integrating environmental KPIs into healthcare governance, sustainability becomes a core performance criterion. Emerging technologies including AI, 5G, and renewable edge computing will accelerate this transition.

Over the next decade, sustainability will evolve from an optional feature to a core accreditation requirement in global telemedicine standards.

The Green Telehealth Framework bridges a critical gap in global healthcare transformation: how to digitize without damaging the environment.

By linking sustainability to technology and policy, it ensures that healthcare’s digital revolution advances hand-in-hand with planetary well-being.

The Green Telehealth Framework (GTF) provides a sustainable telehealth solution that addresses digital health delivery sustainability problems while enhancing operational efficiency and financial stability. The study found that sustainability of telehealth systems is a practical task founded not only on sustainability theory, digital transformation concepts, and evidence gained from three national implementation studies (United Kingdom, Australia, United Arab Emirates), but a contributing advantage as well ( Capodici et al., 2025 ).

The GTF combines features of technological efficiency, operational sustainability and policy engagement within a cohesive framework of health care systems to allow carbon responsible innovation. The GTF structure validates its effectiveness through real-world evidence which demonstrates its readiness for worldwide deployment and operational readiness.

1) Sustainability and Efficiency Converge:

Green ICT solutions such as renewable data centers and edge computing reduce energy consumption by up to 30% while improving performance ( Zhai et al., 2024 ).

2) Policy Integration Accelerates Progress:

Mandated sustainability reporting and procurement incentives drive faster adoption and measurable results.

3) Economic Feasibility:

The cost-benefit analyses revealed operational savings of 20% - 30% after two years, proving that sustainability is financially viable.

4) Behavioral and Cultural Shifts Matter:

As detailed in Section 3.4 (Operational Sustainability), user behavior and organizational culture are critical enablers of sustainable telehealth. Future research should focus on measurement and standardized behavioral KPIs, rather than establishing their primary role.

5) Global Relevance:

The framework is adaptable to varying resource levels, providing a scalable foundation for global health systems seeking Net-Zero transformation.

The Green Telehealth Framework advances knowledge by:

While comprehensive, the research relied primarily on documented national reports rather than primary energy audits.

Future studies should incorporate quantitative carbon-accounting methodologies and cross-institutional datasets to strengthen empirical validation. Additionally, rapid advances in AI, 6G, and IoMT devices will require periodic refinement of sustainability metrics.

As healthcare increasingly digitizes, the ecological implications of telehealth will shape policy and design choices worldwide.

The next decade will see sustainability indicators become mandatory in accreditation, funding, and reporting frameworks. Emerging innovations including AI-driven carbon management, biodegradable sensors, and renewable-powered edge systems will anchor the future of eco-smart healthcare ( Australian Government, 2024 ).

In this context, the GTF offers a living framework that is adaptable to new technologies and governance models, ensuring that healthcare’s digital revolution contributes positively to planetary well-being.

The Green Telehealth Framework demonstrates that sustainability and digital innovation are not competing priorities but mutually reinforcing imperatives.

By embedding environmental accountability within healthcare technology, operations, and governance, telehealth can evolve into a cornerstone of climate-resilient healthcare.

In essence, the future of healthcare must be both digital and sustainable and Green Telehealth provides the roadmap to get there.