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As global leaders gather in Brazil for Cop30, it is crucial to assess how we are faring together in reducing global greenhouse gas emissions.

Despite three decades of United Nations climate conferences, approximately half of the carbon dioxide accumulated in the atmosphere after the dawn of industrialization has been released after the year 1990. Coincidentally, 1990 was the publication of the First Assessment Report by the IPCC, which verified the danger of human-caused global warming. As scientists work on the upcoming IPCC report, they do so aware that scientific findings remains overshadowed by political influences. Despite well-intentioned efforts, the world is remains dangerously off track to prevent catastrophic climate change.

Unprecedented CO₂ Levels and Fossil Fuel Dependency

Latest figures indicate that atmospheric carbon dioxide levels reached a record high of 423.9 parts per million in the year 2024, with the increase rate from the previous year jumping by the largest yearly increase since modern measurements began in the late 1950s. According to the Global Carbon Project, ninety percent of worldwide carbon dioxide output in last year came 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 carbon emissions from fuels in 2024 was propelled by increased use of gas and oil—representing over half of global emissions—the use of coal also reached a historic peak, constituting forty-one percent. In spite of Cop28’s global stocktake calling for nations to move beyond carbon fuels, global strategies still aim to extract over twice the amount of hydrocarbons in the year 2030 than aligns with keeping global warming to 1.5C, with continued extraction of natural gas rationalized as a less polluting transition fuel.

The Mirage of Nature-Based Solutions

Rather than concentrating on financial motivators to speed up the phase-out of fossil fuels, environmental strategies are heavily reliant on feel-good nature positive approaches that aim to cancel out carbon emissions by planting trees instead of reducing industrial emissions. While protecting, enlarging, and restoring natural carbon sinks like woodlands and wetlands is beneficial in itself, research has demonstrated that there is not enough land to achieve the worldwide target of carbon neutrality using ecological methods alone.

Roughly 1 billion hectares—an area bigger than the United States of America—is needed to meet net zero pledges. More than forty percent of this area would need to be transformed from current applications like agriculture to carbon sequestration projects by 2060 at an unprecedented rate.

Although this ideal restoration could be achieved, woodlands require years to grow and can burn down, so they cannot be considered as a quick or permanent carbon storage solution, particularly in a rapidly shifting environment. While severe temperatures and aridity engulf more of the planet, these sincere attempts could literally be destroyed by fire.

The Weakening of Planetary Absorbers

Research data tells us that about half of the carbon dioxide released annually stays in the air, while the remainder is absorbed by seas and land ecosystems. As the planet warms, these natural carbon sinks are becoming less effective at capturing CO₂, which means that more carbon builds up in the air, further exacerbating global warming. Transferring the mitigation burden onto the land sector effectively excuses the fossil fuel industry from the pressure to reduce emissions in the near future.

The Climate Liability and Coming Populations

Reaching carbon neutrality by mid-century demands carbon dioxide removal (CDR), which currently depends largely on land-based measures to soak up surplus CO2 from the air. Polluters can simply purchase offsets to counterbalance their discharges and continue with normal operations. Meanwhile, the planetary heat imbalance resulting from the burning of fossil fuels keeps on 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 unpayable liability.

To curb the magnitude and length of overshoot the global warming targets, the planet eventually needs to go well beyond the balancing impact of carbon neutrality and begin to drawdown past carbon outputs to reach net negative emissions.

The Policy Misrepresentation of Net Zero

Based on the latest numbers from the Global Carbon Project, plant-based carbon removal is presently absorbing the equivalent of about 5% of annual fossil carbon dioxide emissions, while engineered carbon extraction represents only about one-millionth of the CO2 emitted from fossil fuels. More generous industry estimates suggest around zero point one percent of total global emissions. At the risk of sounding like a heretic, the political distortion of carbon neutrality is a deceptive gap that takes focus away from the research-based necessity to eradicate the main source of our overheating planet—fossil fuels.

The Critical Requirement for Definite Steps

While this research-backed truth should lead discussions at the climate summit, past events suggests that gradual, cautious steps and deference to politics will prevail. Vague statements of future ambition will keep on postpone the pressing requirement for definite short-term measures. Unless policymakers have the courage to put a price on carbon to bring the era of fossil fuels to a definitive end, we are releasing increasing amounts of CO2 to the air, worsening the physical catastrophe now unfolding across the globe.

The challenge we confront is simple: genuinely respond to the evidence-based situation of our crisis or suffer the results of this profound moral failure for generations ahead.