The Net Zero Concept: A Deceptive Escape Route Diverting Attention from the Essential Scientific Need to Eliminate Fossil Fuels

As global leaders assemble in the Brazilian Amazon for the 30th UN Climate Change Conference, it is essential to review our collective progress in lowering global greenhouse gas emissions.

Despite 30 years of UN climate summits, approximately half of the CO2 built up in the atmosphere since the Industrial Revolution has been released since 1990. Incidentally, 1990 was the publication of the First Assessment Report by the IPCC, which confirmed the threat of anthropogenic climate change. As scientists prepare the upcoming IPCC report, they do so aware that their work remains overshadowed by political influences. Regardless of well-intentioned efforts, the planet is still far from the path to prevent catastrophic climate change.

Record-Breaking CO₂ Levels and Fossil Fuel Dependency

Recent data show that CO₂ concentrations reached a new peak of 423.9 ppm in the year 2024, with the increase rate from the previous year jumping by the biggest annual rise since modern measurements began in the late 1950s. Based on the Global Carbon Project, ninety percent of total global CO₂ emissions in last year originated from the combustion of carbon-based energy sources, while the remaining 10% resulted from land-use changes such as forest clearance and wildfires.

While the increase in fossil CO₂ emissions in recent times was propelled by higher use of natural gas and petroleum—representing over half of worldwide discharges—coal burning also reached a record high, constituting forty-one percent. In spite of Cop28’s global stocktake urging nations to transition away from carbon fuels, global strategies still intend to produce more than double the amount of hydrocarbons in 2030 than is consistent with keeping planet heating to 1.5C, with continued extraction of natural gas justified as a lower emission bridge fuel.

The Illusion of Nature-Based Solutions

Rather than focusing on financial motivators to speed up the elimination of carbon fuels, environmental strategies are overly dependent on feelgood eco-positive solutions that aim to neutralize carbon emissions by planting trees rather than reducing factory discharges. While protecting, expanding, and restoring natural carbon sinks like woodlands and wetlands is beneficial in itself, research has shown that there is insufficient territory to reach the global goal of net zero emissions using nature-based solutions by themselves.

Roughly one billion hectares—an area larger than the USA—is needed to meet net zero pledges. Over 40% of this area would need to be converted from existing uses like food production to carbon capture initiatives by the year 2060 at an never-before-seen pace.

Although this regenerative utopia could be achieved, woodlands take time to mature and are susceptible to fires, so they should not be viewed as a fast or lasting CO2 retention method, particularly in a rapidly shifting environment. As severe temperatures and dryness affect more of the planet, these well-intentioned efforts could actually be destroyed by fire.

The Diminishing of Planetary Absorbers

Scientific evidence tells us that about half of the total CO₂ emitted annually remains in the atmosphere, while the remainder is absorbed by seas and terrestrial systems. As the planet warms, these environmental absorbers are losing efficiency at soaking up CO₂, meaning that additional CO2 builds up in the atmosphere, further exacerbating global warming. Shifting the reduction responsibility onto the agricultural and forest sectors effectively excuses the fossil fuel industry from the urgency to cut pollution in the near future.

The Climate Liability and Coming Populations

Reaching carbon neutrality by mid-century requires CO2 extraction (CDR), which at present depends largely on terrestrial methods to soak up surplus CO2 from the atmosphere. Emitting companies can simply purchase offsets to counterbalance their emissions and proceed with business as usual. Meanwhile, the planetary heat imbalance resulting from the burning of fossil fuels continues to further destabilise the global climate system. In effect, we are adding more carbon debt to our global account, passing on future generations with an insurmountable burden.

To curb the scale and length of overshoot the Paris Agreement temperature goals, the planet ultimately needs to go well beyond the balancing impact of net zero and begin to remove past carbon outputs to reach net negative emissions.

The Policy Misrepresentation of Carbon Neutrality

Based on the most recent data from the Global Carbon Project, plant-based carbon removal is presently absorbing the equivalent of about 5% of yearly CO2 from fuels, while technology-based CDR represents only about a tiny fraction of the CO2 emitted from fossil fuels. Optimistic industry estimates suggest around 0.1% of total global emissions. Without meaning to be controversial, the policy twisting of net zero is an insidious loophole that distracts from the scientific imperative to eliminate the main source of our warming world—carbon-based energy.

The Urgent Need for Concrete Action

While this research-backed truth should lead talks at Cop30, history suggests that polite incrementalism and deference to politics will win out. Vague statements of future ambition will keep on delay the urgent need for definite short-term measures. Unless leaders have the courage to put a price on carbon to terminate the age of hydrocarbons, we are adding increasing amounts of CO2 to the air, worsening the physical catastrophe currently happening all around us.

The challenge we face is simple: take real action to the scientific reality of our crisis or endure the consequences of this profound moral failure for generations ahead.