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While world leaders gather in Brazil for the 30th UN Climate Change Conference, it is vital to evaluate how we are faring together in reducing worldwide emissions of greenhouse gases.

Despite three decades of UN climate summits, approximately half of the carbon dioxide accumulated in the atmosphere since the Industrial Revolution has been emitted after the year 1990. Incidentally, 1990 marked the publication of the initial scientific evaluation by the Intergovernmental Panel on Climate Change, which confirmed the danger of anthropogenic climate change. As scientists work on the upcoming IPCC report, they do so knowing that scientific findings remains overshadowed by political influences. Regardless of sincere attempts, the world is remains far from the path to prevent catastrophic climate change.

Unprecedented CO₂ Levels and Carbon-Based Fuel Dependency

Latest figures show that CO₂ concentrations reached a new peak of 423.9 parts per million in the year 2024, with the growth rate from 2023 to 2024 jumping by the biggest annual rise since modern measurements began in the late 1950s. According to the Global Carbon Project, ninety percent of total global CO₂ emissions in 2024 originated from the combustion of carbon-based energy sources, while the other tenth was due to land-use changes such as forest clearance and wildfires.

Although the increase in carbon emissions from fuels in recent times was driven by higher use of gas and oil—accounting for more than 50% of worldwide discharges—the use of coal also reached a record high, making up forty-one percent. In spite of Cop28’s global stocktake calling for nations to move beyond carbon fuels, global strategies still intend to produce more than double the quantity of hydrocarbons in the year 2030 than aligns with keeping global warming to 1.5C, with ongoing drilling of gas rationalized as a lower emission bridge fuel.

The Mirage of Nature-Based Solutions

Rather than focusing on economic incentives to speed up the phase-out of carbon fuels, climate policies are heavily reliant on feelgood nature positive solutions that aim to cancel out carbon emissions by afforestation rather than reducing industrial emissions. While conserving, enlarging, and rehabilitating ecological absorbers like woodlands and marshes is beneficial in itself, studies has demonstrated that there is not enough land to reach the worldwide target of net zero emissions using ecological methods alone.

Roughly 1 billion hectares—a territory larger than the USA—is needed to fulfill carbon neutrality commitments. Over 40% of this area would need to be converted from existing uses like food production to carbon capture initiatives by 2060 at an never-before-seen pace.

Even if this regenerative utopia could be realized, forests take time to mature and are susceptible to fires, so they should not be viewed as a fast or lasting carbon storage solution, particularly in a fast-changing environment. While extreme heat and dryness affect more of the planet, these well-intentioned efforts could actually go up in smoke.

The Weakening of Natural Carbon Sinks

Research data tells us that about 50% of the total CO₂ emitted annually stays in the air, while the remainder is taken up by oceans and terrestrial systems. With global heating, these natural carbon sinks are losing efficiency at soaking up CO₂, which means that more carbon builds up in the atmosphere, intensifying global warming. Transferring the mitigation burden onto the agricultural and forest sectors effectively excuses the oil and gas sector from the pressure to cut pollution any time soon.

The Carbon Debt and Coming Populations

Reaching carbon neutrality by mid-century demands carbon dioxide removal (CDR), which currently depends largely on land-based measures to absorb surplus CO2 from the air. Emitting companies can easily purchase offsets to counterbalance their emissions and proceed with normal operations. At the same time, the energy imbalance resulting from the combustion of hydrocarbons continues to further destabilise the Earth’s climate. In effect, we are increasing our climate liability to our planetary credit card, passing on our descendants with an insurmountable burden.

To curb the magnitude and duration of overshoot the Paris Agreement temperature goals, the world eventually needs to go well beyond the neutralising effect of net zero and begin to remove past carbon outputs to achieve a carbon-negative state.

The Policy Misrepresentation of Carbon Neutrality

Based on the most recent data from the international carbon research group, vegetation-based CDR is currently absorbing the equivalent of about 5% of annual fossil carbon dioxide emissions, while engineered carbon extraction accounts for only about one-millionth of the carbon released from carbon sources. Optimistic sector projections place it at around 0.1% of total global emissions. At the risk of sounding like a heretic, the political distortion of carbon neutrality is an insidious loophole that distracts from the scientific imperative to eliminate the main source of our overheating planet—fossil fuels.

The Urgent Need for Concrete Action

While this scientific reality should lead talks at the climate summit, history suggests that gradual, cautious steps and political kowtowing will prevail. Ambiguous promises of long-term goals will keep on delay the urgent need for definite short-term measures. Unless leaders are brave enough to implement carbon pricing to bring the era of fossil fuels to a definitive end, we are releasing more and more carbon to the atmosphere, compounding the environmental disaster currently happening all around us.

The dilemma we face is simple: take real action to the evidence-based situation of our crisis or suffer the results of this deep ethical lapse for centuries to come.