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

In spite of three decades of UN climate summits, nearly 50% of the carbon dioxide accumulated in the atmosphere after the dawn of industrialization has been released after the year 1990. Coincidentally, 1990 was the release of the initial scientific evaluation by the Intergovernmental Panel on Climate Change, which confirmed the threat of anthropogenic climate change. While researchers prepare the Seventh Assessment 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 avert dangerous global warming.

Unprecedented CO₂ Levels and Carbon-Based Fuel Dependency

Recent data show that atmospheric carbon dioxide levels reached a record high of 423.9 ppm 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 international carbon monitoring initiative, 90% of total global CO₂ emissions in last year came from burning fossil fuels, while the remaining 10% resulted from alterations in land use such as forest clearance and wildfires.

Although the rise in fossil CO₂ emissions in recent times was propelled by increased use of natural gas and petroleum—accounting for over half of global emissions—coal burning also reached a historic peak, constituting 41%. Despite the previous climate summit's evaluation calling for nations to move beyond fossil fuels, global strategies still aim to produce more than double the amount of fossil fuels in the year 2030 than aligns with keeping global warming to 1.5 degrees Celsius, with continued extraction of gas justified as a less polluting transition fuel.

The Illusion of Eco-Friendly Measures

Instead of concentrating on financial motivators to speed up the elimination of carbon fuels, climate policies are overly dependent on feel-good nature positive approaches that aim to cancel out CO2 output by planting trees rather than cutting factory discharges. While protecting, expanding, and restoring ecological absorbers like forests and wetlands is beneficial in itself, studies has shown that there is insufficient territory to achieve the global goal of carbon neutrality using ecological methods alone.

Approximately one billion hectares—an area bigger than the USA—is needed to fulfill net zero pledges. Over forty percent of this land would need to be converted from existing uses like food production to carbon capture initiatives by 2060 at an unprecedented rate.

Although this ideal restoration could be realized, forests take time to mature and are susceptible to fires, so they should not be viewed as a quick or lasting CO2 retention method, especially in a fast-changing environment. While extreme heat and aridity affect larger regions, these well-intentioned efforts could actually go up in smoke.

The Diminishing of Planetary Absorbers

Scientific evidence indicates that about half of the carbon dioxide released each year remains in the atmosphere, while the rest is taken up by seas and terrestrial systems. With global heating, these natural carbon sinks are losing efficiency at soaking up CO₂, meaning that more carbon builds up in the atmosphere, intensifying global warming. Transferring the reduction responsibility 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

Achieving carbon neutrality by mid-century requires CO2 extraction (CDR), which at present depends largely on terrestrial methods to soak up excess carbon from the atmosphere. Emitting companies can easily purchase offsets to compensate for their emissions and continue 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 increasing our climate liability to our global account, passing on future generations with an unpayable liability.

To curb the scale and duration of overshoot the Paris Agreement temperature goals, the world ultimately needs to surpass the balancing impact of carbon neutrality and begin to drawdown past carbon outputs to reach a carbon-negative state.

The Policy Misrepresentation of Carbon Neutrality

According to the latest numbers from the international carbon research group, plant-based carbon removal is presently absorbing the equal of about five percent of yearly CO2 from fuels, while technology-based CDR represents only about one-millionth of the CO2 emitted from carbon sources. More generous industry estimates place it at around 0.1% of worldwide CO2 output. At the risk of sounding like a heretic, the political distortion of carbon neutrality is an insidious loophole that takes focus away from the research-based necessity to eliminate the main source of our warming world—fossil fuels.

The Urgent Need for Concrete Action

Although this scientific reality should lead discussions at Cop30, history indicates that polite incrementalism and deference to politics will win out. Ambiguous promises of long-term goals will keep on postpone the urgent need for definite short-term measures. Unless policymakers are brave enough to implement carbon pricing to bring the era of fossil fuels to a definitive end, we are releasing increasing amounts of CO2 to the atmosphere, compounding the physical catastrophe currently happening all around us.

The challenge we face is straightforward: take real action to the evidence-based situation of our crisis or suffer the results of this deep ethical lapse for generations ahead.