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As global leaders convene in Brazil for the 30th UN Climate Change Conference, it is essential to assess our collective progress in cutting worldwide emissions of greenhouse gases.

Despite three decades of UN climate summits, approximately half of the CO2 built up in the atmosphere after the dawn of industrialization has been released since 1990. Coincidentally, 1990 was the publication of the initial scientific evaluation by the Intergovernmental Panel on Climate Change, which verified the threat of anthropogenic climate change. While researchers work on the Seventh Assessment Report, they do so aware that scientific findings remains overshadowed by political influences. Despite well-intentioned efforts, the world is remains far from the path to prevent catastrophic climate change.

Record-Breaking CO₂ Levels and Fossil Fuel Dependency

Recent data indicate that CO₂ concentrations hit a new peak of 423.9 ppm in the year 2024, with the increase rate from the previous year surging by the biggest annual rise since record-keeping started in 1957. 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 other tenth was due to land-use changes such as deforestation and forest fires.

While the increase in fossil CO₂ emissions in recent times was driven by increased use of natural gas and petroleum—representing more than 50% of global emissions—coal burning also attained a historic peak, making up forty-one percent. Despite Cop28’s global stocktake urging nations to move beyond carbon fuels, global strategies still aim to extract over twice the quantity of hydrocarbons in 2030 than is consistent with limiting global warming to 1.5 degrees Celsius, with continued extraction of natural gas justified as a less polluting bridge fuel.

The Mirage of Nature-Based Solutions

Instead of concentrating on economic incentives to speed up the phase-out of fossil fuels, climate policies are heavily reliant on feelgood nature positive approaches that aim to cancel out carbon emissions by planting trees instead of cutting factory discharges. Although protecting, enlarging, and restoring natural carbon sinks like forests and marshes is inherently good, studies has shown that there is insufficient territory to achieve the global goal of carbon neutrality using ecological methods by themselves.

Approximately one billion hectares—a territory bigger than the USA—is needed to meet net zero pledges. More than 40% of this area would need to be converted from current applications like food production to carbon capture initiatives by the year 2060 at an unprecedented rate.

Even if this regenerative utopia could be achieved, woodlands require years to grow and can burn down, so they cannot be considered as a fast or permanent CO2 retention method, especially in a rapidly shifting environment. As extreme heat and aridity engulf larger regions, these well-intentioned efforts could actually be destroyed by fire.

The Weakening of Planetary Absorbers

Research data tells us that about 50% of the carbon dioxide released annually stays in the air, while the rest is taken up by oceans and land ecosystems. With global heating, these environmental absorbers are becoming less effective at capturing CO₂, which means that more carbon accumulates in the air, intensifying global warming. Transferring the mitigation burden onto the land sector simply relieves the fossil fuel industry from the pressure to reduce emissions in the near future.

The Carbon Debt and Coming Populations

Achieving carbon neutrality by mid-century demands carbon dioxide removal (CDR), which currently relies almost exclusively on terrestrial methods to absorb excess carbon from the air. Emitting companies can simply buy carbon credits to counterbalance their discharges and proceed with normal operations. Meanwhile, 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 global account, leaving future generations with an unpayable liability.

To curb the magnitude and length of overshoot the Paris Agreement temperature goals, the world ultimately needs to surpass the neutralising effect of carbon neutrality and start to remove cumulative historical emissions to reach a carbon-negative state.

The Political Distortion of Carbon Neutrality

According to the latest numbers from the Global Carbon Project, vegetation-based CDR is presently capturing the equal of about 5% of annual fossil carbon dioxide emissions, while technology-based CDR represents only about a tiny fraction of the carbon released from carbon sources. More generous sector projections suggest around zero point one percent of worldwide CO2 output. Without meaning to be controversial, the policy twisting of carbon neutrality is an insidious loophole that takes focus away from the scientific imperative to eradicate the main source of our warming world—carbon-based energy.

The Critical Requirement for Definite Steps

While this research-backed truth should dominate discussions at Cop30, history indicates that gradual, cautious steps and deference to politics will win out. Vague statements of long-term goals will continue to postpone the urgent need for concrete immediate action. Until policymakers have the courage 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 physical catastrophe currently happening across the globe.

The dilemma we face is simple: genuinely respond to the evidence-based situation of our crisis or endure the consequences of this profound moral failure for generations ahead.