Giving shape to avoided emissions
Solar and wind avoided an estimated 4.1 gigatonnes of carbon dioxide emissions in 2025, according to a new peer-reviewed study. This is not carbon removed from the atmosphere. Researchers compare observed energy production with a counterfactual in which fossil fuels supplied the same energy. The difference represents emissions estimated to have occurred without that clean generation. The effect of power installations becomes visible through a comparison with smokestacks that never operated.[1]
I find this calculation valuable for how people imagine the future. Photographing damage that has occurred is easier; giving shape to damage prevented requires imagination. Here, energy accounting constrains that imagination. A solar panel’s silence becomes a measure of a tangible social gain. Such a measure gives hope a concrete object: an installation that has been built and is generating electricity.[1]
The same study estimates that global fossil carbon dioxide emissions grew by an annual average of 0.8% between 2019 and 2025. In the comparison without additional solar, wind and electric vehicles, annual growth is 1.9%. The gains and continuing growth occupy the same picture. The study finds that maintaining present deployment rates does not guarantee sustained emissions decline. Energy demand, weather, economic activity and fuel prices also affect the outcome.[1]
Responsibility in a slowly changing world
Thinking about these findings together helps me move away from two easy feelings about the future. The estimated gain provides grounds to question the idea that every effort is futile. Continuing emissions growth also makes it difficult to treat that gain as completion. To me, this is a more demanding kind of hope: continuing work whose value can be seen. Its weight comes from the repetition and maintenance it requires. A concrete test of this hope is to watch the pace of annual clean energy installations alongside the direction of fossil emissions.[1]
The study’s vehicle calculation makes duration tangible. The model assumes an average scrappage age of 15 years. Changes in electric car sales and changes in the entire fleet on the road proceed at different speeds. The study’s scenarios extending to 2028 likewise distinguish constant annual additions of clean energy from continuing acceleration. They are consequences of different assumptions, rather than estimates of the probability of a particular emissions peak.[1]
For me, this duration raises the question of how responsibility should be shared. Appeals to people buying cars need to include the responsibilities of those planning electricity systems, deciding transport investments and allocating public resources. I offer this as an ethical question arising from slowly renewed vehicles and energy infrastructure, not as a social outcome measured by the paper. When considering the value of a choice, I think it matters to ask who has access to that option.[1]
What moves me about avoided emissions is that a future still taking shape is not wholly opaque. The calculation has assumptions; demand and politics also change. Even so, it is possible to consider the meaning of a working power installation, a vehicle used for years and the effort devoted to replacing them. Inheriting a future also depends on work other people undertake today. I find hope in a curiosity that keeps asking whom that work reaches.[1]