For decades, the global conversation surrounding the climate crisis has centered on a singular, massive transition: changing how we produce power. From the proliferation of wind farms to the expansion of solar arrays, the primary focus of international policy has been the “supply side”—replacing carbon-heavy fossil fuels with clean energy sources to steer the planet toward a sustainable future.
However, a growing body of research suggests that focusing solely on the source of our energy is an incomplete strategy. To actually achieve net-zero emissions by 2050, experts argue that the world must pivot its attention toward energy demand goals for climate resilience. The premise is simple but profound: it is not enough to create energy clean; we must as well fundamentally change how much energy we employ and how we use it.
This shift in perspective moves the goalposts from “primary inputs”—the raw energy harnessed from nature—to “final energy.” Final energy refers to the electricity and fuels actually delivered to the end-user to provide essential services, such as mobility and thermal comfort in our homes. By targeting the demand side, policymakers can unlock a powerful, underutilized lever of climate action that could accelerate the transition to a carbon-neutral world.
The urgency of this shift is underscored by the realization that current climate goals may be insufficient to meet 2050 targets if demand continues to grow unchecked. As a physician, I view this not just as an environmental necessity, but as a public health imperative. Energy resilience—ensuring that populations have reliable, efficient access to heating and cooling—is directly linked to the prevention of temperature-related illnesses and the overall stability of urban health systems.
The Supply-Demand Gap: Why Clean Energy Isn’t Enough
To understand why energy demand goals are critical, one must first understand the distinction between energy supply and energy demand. Most current climate strategies are designed to “decarbonize the grid.” This means that if a city uses 1,000 megawatts of power, the goal is to ensure those 1,000 megawatts come from wind or solar rather than coal or gas.
The problem arises when the total demand for energy continues to climb. If efficiency is ignored and consumption increases, the scale of infrastructure required to provide 100% clean energy becomes exponentially more difficult and expensive to build. Relying solely on supply ignores the systemic waste inherent in many of our current industrial and residential processes.
By integrating demand-side goals, the objective changes. Instead of simply asking “How do we power this city with clean energy?”, the question becomes “How can this city function with significantly less energy, and how can that remaining energy be used more effectively?” This approach reduces the burden on the energy grid and increases the resilience of the entire system against climate-induced shocks.
The ‘Triple-Triple’ Agenda for 2035
A recent proposal led by researchers from the International Institute for Applied Systems Analysis (IIASA) and Iscte – University Institute of Lisbon outlines a rigorous framework to address this imbalance. The researchers propose a “triple-triple” agenda, which calls for tripling progress across three specific pillars of energy demand by 2035.
1. Tripling Energy Efficiency
Energy efficiency is often described as the “first fuel” because the cheapest and cleanest energy is the energy that is never used. Tripling progress in efficiency involves upgrading building insulation, optimizing industrial processes, and implementing smarter appliance standards. In a public health context, efficiency is a tool for equity; it reduces the energy cost burden on low-income households, ensuring they can maintain safe indoor temperatures without facing financial ruin.
2. Tripling Electrification
Electrification is the process of replacing combustion-based systems—such as gas furnaces or internal combustion engines—with electric alternatives. While this seems to increase the demand for electricity, it drastically increases the overall efficiency of the energy system. Electric heat pumps and electric vehicles are far more efficient at converting energy into useful work (heat or motion) than their fossil-fuel counterparts. By tripling the pace of electrification, societies can more effectively leverage the clean energy supply already being built.
3. Curbing Extreme Energy Consumption
The final pillar of the “triple-triple” agenda focuses on the outliers of energy use. A slight percentage of the global population and specific industrial sectors account for a disproportionate share of energy demand. By implementing targeted actions to curb extreme energy consumption, policymakers can achieve significant emission reductions without compromising the basic needs or quality of life for the general population.
The Impact on Global Climate Resilience
When we speak of “resilience,” we are talking about the ability of a system to absorb a shock and continue functioning. In the context of climate change, this means maintaining essential services—like hospitals, water treatment plants, and emergency shelters—during extreme weather events.
A system based on high energy demand is inherently fragile. If a city requires massive amounts of energy to keep its buildings habitable during a heatwave, any failure in the supply chain can lead to catastrophic health outcomes. Conversely, a city that has prioritized energy efficiency and reduced its overall demand is far more resilient. When the baseline energy requirement is lower, it is easier to maintain critical services using decentralized, renewable sources like local microgrids.
the transition to these demand goals helps mitigate the “rebound effect,” where gains in efficiency are offset by increased usage. By setting hard goals for demand reduction, international climate policy can ensure that technological improvements actually lead to lower total emissions rather than simply cheaper consumption.
Integrating Demand into International Policy
For the “triple-triple” agenda to succeed, it must be integrated into the core of international climate agreements. Currently, many national pledges (NDCs) focus heavily on the percentage of renewables in the energy mix. The researchers argue that these must be complemented by specific, measurable targets for final energy demand.
Integrating these goals by 2035 would provide a necessary roadmap for governments to align their building codes, transport policies, and industrial regulations. This alignment is essential for reaching the net-zero emissions target by 2050, as supply-side transitions alone may not be fast enough to keep global warming within safe limits.
| Feature | Supply-Side Focus (Traditional) | Demand-Side Focus (Proposed) |
|---|---|---|
| Primary Goal | Decarbonize the source of energy | Reduce and optimize total energy use |
| Key Action | Build wind, solar, and nuclear plants | Efficiency, electrification, and consumption caps |
| System Impact | Replaces “dirty” energy with “clean” energy | Lowers the total load on the energy grid |
| Resilience | Dependent on grid stability and capacity | Increases stability by lowering baseline needs |
What Happens Next?
The path forward requires a fundamental shift in how governments view energy. The proposal to triple progress in efficiency, electrification, and consumption curbing is not merely a technical suggestion but a strategic necessity. As the world prepares for upcoming climate summits and the revision of national energy strategies, the integration of these demand goals will be a critical benchmark for success.
The next major checkpoint for these discussions will be the continued integration of these frameworks into international policy updates leading toward the 2035 target. Whether through new building mandates or updated industrial standards, the transition from “how we produce” to “how we use” will define the next decade of climate action.
Do you believe your local government is doing enough to prioritize energy efficiency over simply adding more power sources? Share your thoughts in the comments below or share this article to start a conversation about energy resilience in your community.