The Net Zero Concept: A Deceptive Escape Route Distracting from the Essential Scientific Need to Phase Out Fossil Fuels
As global leaders convene in the Brazilian Amazon for the 30th UN Climate Change Conference, it is vital to evaluate how we are faring together in reducing global greenhouse gas emissions.
Despite 30 years of United Nations climate conferences, nearly 50% of the CO2 built up in the atmosphere after the dawn of industrialization has been emitted since 1990. Incidentally, 1990 marked the publication of the First Assessment Report by the IPCC, which verified the danger of human-caused global warming. While researchers prepare the Seventh Assessment Report, they do so knowing that their work remains eclipsed by political influences. Regardless of well-intentioned efforts, the planet is remains far from the path to avert catastrophic climate change.
Record-Breaking CO2 Levels and Carbon-Based Fuel Dependency
Recent data indicate that CO2 concentrations hit a record high of 423.9 parts per million in 2024, with the increase rate from 2023 to 2024 jumping by the biggest annual rise since modern measurements began in 1957. Based on the Global Carbon Project, 90% of total global CO2 emissions in last year came from the combustion of carbon-based energy sources, while the other tenth was due to alterations in land use such as deforestation and forest fires.
While the increase in fossil CO2 emissions in 2024 was driven by higher use of natural gas and petroleum—accounting for more than 50% of global emissions—the use of coal also reached a historic peak, making up forty-one percent. In spite of Cop28’s global stocktake calling for nations to transition away from carbon fuels, global strategies still intend to extract over twice the quantity of hydrocarbons in the year 2030 than is consistent with keeping planet heating to 1.5 degrees Celsius, with ongoing drilling of natural gas justified as a less polluting bridge fuel.
The Illusion of Nature-Based Solutions
Rather than concentrating on financial motivators to accelerate the phase-out of fossil fuels, climate policies are heavily reliant on feelgood nature positive approaches that aim to neutralize CO2 output by afforestation rather than cutting industrial emissions. Although conserving, enlarging, and rehabilitating ecological absorbers like forests and wetlands is beneficial in itself, research has demonstrated that there is not enough land to reach the global goal of net zero emissions using nature-based solutions by themselves.
Roughly one billion hectares—an area bigger than the USA—is needed to fulfill carbon neutrality commitments. Over forty percent of this area would need to be transformed from existing uses like agriculture to carbon sequestration projects by 2060 at an unprecedented rate.
Although this ideal restoration could be achieved, forests take time to mature and can burn down, so they cannot be considered as a fast or lasting CO2 retention method, especially in a fast-changing climate. As severe temperatures and dryness engulf more of the planet, these sincere attempts could literally be destroyed by fire.
The Weakening of Planetary Absorbers
Research data indicates that about half of the total CO2 emitted annually remains in the atmosphere, while the remainder is absorbed by oceans and terrestrial systems. With global heating, these natural carbon sinks are losing efficiency at soaking up CO2, meaning that additional CO2 accumulates in the atmosphere, further exacerbating global warming. Shifting the mitigation burden onto the land sector simply relieves the oil and gas sector from the pressure to cut pollution any time soon.
The Climate Liability and Coming Populations
Achieving net zero by 2050 requires carbon dioxide removal (CDR), which at present relies almost exclusively on terrestrial methods to absorb surplus CO2 from the air. Polluters can simply buy carbon credits to compensate for their emissions and continue with normal operations. Meanwhile, the planetary heat imbalance resulting from the burning of fossil fuels keeps on further disrupt the global climate system. In effect, we are increasing our climate liability to our planetary credit card, passing on future generations with an unpayable liability.
To limit the magnitude and duration of overshoot the Paris Agreement temperature goals, the world eventually needs to surpass the neutralising effect of net zero and begin to remove past carbon outputs to reach a carbon-negative state.
The Political Distortion of Net Zero
Based on the most recent data from the international carbon research group, plant-based carbon removal is currently capturing the equivalent of about 5% of annual fossil carbon dioxide emissions, while technology-based CDR accounts for only about a tiny fraction of the CO2 emitted from fossil fuels. More generous industry estimates suggest around 0.1% of total global emissions. At the risk of sounding like a heretic, the policy twisting of net zero is an insidious loophole that distracts from the scientific imperative to eliminate the main source of our overheating planet—carbon-based energy.
The Urgent Need for Definite Steps
While this research-backed truth should dominate discussions at the climate summit, history suggests that gradual, cautious steps and political kowtowing will win out. Vague statements of future ambition will continue to postpone the pressing requirement for concrete immediate action. Until leaders are brave enough to put a price on carbon to bring the era of fossil fuels to a definitive end, we are adding more and more carbon to the atmosphere, worsening the environmental disaster currently happening across the globe.
The dilemma we face is simple: take real action to the scientific reality of our crisis or suffer the consequences of this deep ethical lapse for centuries to come.
