Climate change now represents a global systemic crisis affecting the environment, society, and the economy. Nearly half of the world’s population has already experienced prolonged periods of extreme heat, and exceeding 2 °C of global warming could render some regions virtually uninhabitable by the end of the century. Events such as droughts, heatwaves, and floods undermine livelihoods, infrastructure, and production systems, disproportionately impacting the most vulnerable communities and increasing the risk of extreme poverty for more than 100 million people by 2030.
In this context, the energy transition plays a central role. According to the IPCC (2023), between 70% and 85% of global electricity could come from renewable sources by 2050, delivering benefits in terms of emissions reduction, energy security, and socio-economic resilience. Renewable energy thus emerges as a strategic lever to address the climate crisis by integrating environmental sustainability, economic stability, and social cohesion.
Impacts of Climate Change on the Economy and Infrastructure
Climate change is already producing systemic effects on the global economy and critical infrastructure. The IPCC 2023 Synthesis Report highlights how the increasing frequency and intensity of extreme events are undermining food security, labor market stability, and operating conditions across many regions of the world. Today, between 3.3 and 3.6 billion people live in contexts of high climate vulnerability, with direct impacts on production, resources, and the continuity of economic systems.
Declining agricultural productivity, growing water scarcity, and supply chain instability are not isolated phenomena but factors that amplify pre-existing structural vulnerabilities. At the macroeconomic level, damage to infrastructure and supply chains generates cascading effects on growth, employment, and competitiveness, with costs set to rise further in the absence of effective mitigation and adaptation strategies.
In this context, the energy system plays a pivotal role. Beyond being one of the main sources of emissions, it is also a critical infrastructure increasingly exposed to climate impacts. Extreme events place growing stress on power grids, generation assets, and distribution systems, turning environmental risks into operational and industrial crises. Strengthening the reliability, flexibility, and resilience of energy systems therefore becomes a prerequisite for economic stability and a key element of adaptation strategies and industrial competitiveness.
Environmental Thresholds and Limits to Industrial Action
TThe year 2024 marked a symbolic turning point: global average temperatures exceeded the +1.5 °C threshold above pre-industrial levels for the first time—a limit identified by the IPCC as critical to avoiding widespread and potentially irreversible impacts. The difference between 1.5 °C and 2 °C is not linear: each additional tenth of a degree exponentially increases the frequency and intensity of extreme events, reduces the resilience of natural systems, and significantly raises adaptation costs for economies and infrastructure.
According to the IPCC 2023, around one-third of animal and plant species are already exposed to critical climatic conditions, with the risk of local extinctions increasing rapidly beyond the +2 °C threshold. This threatens essential ecosystem services—such as pollination, climate regulation, and fisheries—that form an indirect but fundamental foundation for the stability of production value chains.
Agriculture is also significantly affected: key crops such as maize, rice, and wheat may experience yield declines of up to 20–30% in tropical and subtropical regions beyond +2 °C, increasing dependence on irrigation and energy-intensive technologies. In parallel, marine ecosystems are under severe pressure: the migration of fish species toward cooler waters reduces catch availability in many areas, with direct consequences for local economies.
These dynamics are not merely environmental or social challenges; they directly affect the timing and feasibility of industrial interventions. Climate impacts and infrastructure timelines rarely align: while climate effects can materialize rapidly and non-linearly, transforming production and energy systems requires years, if not decades. Delaying action progressively reduces industrial room for maneuver, increasing economic costs and the complexity of the transition. In this sense, the 1.5 °C threshold is not only an environmental limit, but a true industrial tipping point, beyond which the energy and infrastructure transition becomes more costly, less flexible, and harder to govern.
Renewables: An Economic and Environmental Opportunity Requiring Governance and Integration
Despite growing scientific awareness of climate urgency, global greenhouse gas emissions continue to rise. In 2024, energy-related CO₂ emissions reached approximately 38 gigatonnes, highlighting how the global energy system remains misaligned with international mitigation targets. The most ambitious scenarios indicate the need to reduce global emissions from over 55 GtCO₂eq in 2019 to around 14 GtCO₂eq by 2050—a transformation unprecedented in both scale and speed.
The energy sector plays a central role, accounting for roughly one-third of global emissions. The key to mitigation lies in the large-scale deployment of renewable energy, particularly solar and wind, which today represent the fastest and most scalable solutions for emissions reduction. Over the past decade, photovoltaic costs have fallen by more than 85%, while onshore wind costs have declined by around 55%, making these technologies competitive with fossil fuels even without direct public subsidies.
The benefits of the energy transition extend beyond emissions reduction: they improve air quality, create skilled employment, and strengthen the resilience of local economic systems. An effective transition requires coherent policies, infrastructure investment, adequate grids, and governance capable of managing increasingly complex and distributed systems.
Large-scale renewable integration implies a profound transformation in how energy is produced, managed, and consumed. Solar and wind can fully express their potential only within integrated energy systems capable of coordinating generation, networks, storage, and demand management. Without digitalisation, operational flexibility, and advanced coordination mechanisms, increasing renewable capacity risks translating into reliability constraints and systemic inefficiencies.
The energy transition therefore, emerges as a system design challenge, where governance, integration, and control become as critical as the technologies themselves. This systemic dimension enables the alignment of decarbonisation, energy security, and long-term industrial resilience.
Time, Costs, and Scalability: Why Renewables Lead the Energy Transition
To reduce emissions within timeframes compatible with critical climate thresholds, priority must be given to technologies that can deliver a tangible impact within the next decade. In this scenario, solar and wind stand out as the most effective solutions due to their combination of rapid deployment, scalability, and economic sustainability.
Their central role stems from their ability to achieve significant emissions reductions by 2030 at competitive costs. Unlike many other technologies, they can be deployed quickly, scaled modularly, and adapted to a wide range of geographic and industrial contexts, enabling large-scale diffusion consistent with the urgency of the climate crisis.
Comparison with other renewable sources reinforces this conclusion. Hydropower remains important in specific energy systems but faces limited expansion potential due to environmental, geographic, and social constraints. Biomass electricity can contribute to decarbonisation, but its climate balance depends heavily on production methods and land use, with potential risks for food security and biodiversity. Geothermal and marine energy remain promising but are still limited to specific regions and difficult to scale in the short term.
Comparisons with low-emission non-renewable technologies further highlight key differences. Nuclear power delivers low operational emissions but requires long construction timelines, high upfront investment, and faces challenges related to social acceptance and waste management. As a result, its contribution to short- and medium-term emissions reduction is limited compared to solutions that can be deployed within a few years. Similarly, technologies such as carbon capture and storage or synthetic fuels still face high costs, technological uncertainty, and largely complementary roles.
What distinguishes solar and wind, therefore, is not only their low emissions but the combination of technological maturity, rapid deployment, and economic accessibility. These characteristics enable significant emissions reductions within the next decade—an essential condition for avoiding the most critical climate thresholds. Moreover, more distributed energy production enhances energy security, reduces dependence on fossil fuel imports, and supports more equitable access to energy.
In this context, renewables—particularly solar and wind—are not merely one option among many, but the backbone of contemporary climate mitigation. Other technologies may play supporting or complementary roles, but they are unlikely to replace renewables’ unique ability to combine climate effectiveness, urgency-compatible timelines, and economic and social sustainability.
Beyond Renewables: The Key Role of Efficiency
Energy efficiency, alongside renewable energy, is a fundamental condition for a truly sustainable energy transition. By acting directly on demand, efficiency reduces emissions, costs, and operational risks with immediate effects, without waiting for new generation infrastructure to be built. The maturity of available technologies and their rapid deployment potential make it possible to improve the energy performance of buildings, industrial processes, and transport systems, reducing consumption while maintaining service levels and generating measurable economic value.
Efficiency implies a structural reduction in energy needs through design, planning, and organisation of production systems. From this perspective, efficiency is not a one-off intervention but a systemic approach that makes renewable integration sustainable over time, reducing pressure on grids, limiting the need for new generation and storage capacity, and strengthening resilience, competitiveness, and economic sustainability.
The energy transition and energy efficiency therefore constitute a true industrial transformation. This is not simply about replacing fossil fuels with renewables, but about rethinking energy system architectures, investment models, and the skills required to govern them. In this context, energy evolves from a basic production input into a strategic lever for competitiveness, infrastructure resilience, and long-term industrial sustainability.
Equity, Resilience, and Systemic Responsibility
The impacts of climate change are not evenly distributed: populations and countries with fewer economic and infrastructural resources are currently the most exposed to extreme events, despite having contributed marginally to global emissions. This asymmetry highlights how the climate crisis is also a question of economic and social system resilience, not solely an environmental issue.
Limited capacity to invest in resilient infrastructure, reliable energy networks, and adaptation tools increases vulnerability to climate shocks, amplifying economic losses and instability. In this context, access to more sustainable, distributed, and resilient energy systems becomes a key factor not only for decarbonisation but also for reducing inequalities and ensuring long-term stability.
The ability to design and govern integrated energy systems is therefore decisive. The transition is not only about which technologies are adopted, but about how production, consumption, flexibility, and markets are orchestrated efficiently. It is within this systemic dimension that the opportunity lies to transform climate urgency into a concrete and lasting industrial opportunity.
