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As global leaders assemble in the Brazilian Amazon for Cop30, it is vital to review our collective progress in reducing worldwide emissions of greenhouse gases.

In spite of 30 years of UN climate summits, nearly 50% of the CO2 built up in the atmosphere after the dawn of industrialization has been emitted since 1990. Incidentally, 1990 marked the release of the initial scientific evaluation by the Intergovernmental Panel on Climate Change, which confirmed the danger of anthropogenic climate change. While researchers prepare the upcoming IPCC report, they do so aware that their work remains overshadowed by political influences. Despite well-intentioned efforts, the planet is still dangerously off track to avert dangerous global warming.

Record-Breaking CO₂ Levels and Carbon-Based Fuel Dependency

Latest figures indicate that CO₂ concentrations hit a record high of 423.9 ppm in 2024, with the increase rate from 2023 to 2024 surging by the largest yearly increase since record-keeping started in the late 1950s. Based on the international carbon monitoring initiative, ninety percent of total global CO₂ emissions in 2024 came from the combustion of carbon-based energy sources, while the other tenth was due to alterations in land use such as forest clearance and wildfires.

Although the rise in fossil CO₂ emissions in 2024 was driven by increased use of natural gas and petroleum—accounting for over half of global emissions—coal burning also attained a historic peak, constituting 41%. Despite Cop28’s global stocktake calling for nations to transition away from fossil fuels, collective plans still aim to extract over twice the amount of hydrocarbons in 2030 than aligns with limiting planet heating to 1.5 degrees Celsius, with continued extraction of natural gas rationalized as a lower emission bridge fuel.

The Mirage of Eco-Friendly Measures

Rather than concentrating on financial motivators to speed up the elimination of carbon fuels, climate policies are heavily reliant on feelgood nature positive approaches that aim to neutralize CO2 output by planting trees rather than cutting industrial emissions. While protecting, expanding, and restoring natural carbon sinks like woodlands and wetlands is beneficial in itself, research has shown that there is not enough land to achieve the worldwide target of net zero emissions using nature-based solutions by themselves.

Approximately one billion hectares—an area larger than the United States of America—is required to meet carbon neutrality commitments. Over 40% of this land would need to be transformed from current applications like food production to carbon sequestration projects by the year 2060 at an never-before-seen pace.

Although this regenerative utopia could be achieved, forests take time to mature and are susceptible to fires, so they cannot be considered as a quick or permanent carbon storage solution, especially in a rapidly shifting environment. While severe temperatures and dryness engulf larger regions, these well-intentioned efforts could actually be destroyed by fire.

The Weakening of Natural Carbon Sinks

Scientific evidence indicates that about half of the total CO₂ emitted annually stays in the air, while the remainder is absorbed by oceans and land ecosystems. With global heating, these natural carbon sinks are losing efficiency at capturing CO₂, which means that additional CO2 builds up in the atmosphere, intensifying global warming. Transferring the reduction responsibility onto the land sector effectively excuses the oil and gas sector from the urgency to cut pollution in the near future.

The Carbon Debt and Future Generations

Achieving net zero by 2050 requires CO2 extraction (CDR), which at present depends largely on terrestrial methods to absorb excess carbon from the atmosphere. Emitting companies can simply purchase offsets to compensate for their discharges and continue with business as usual. At the same time, the planetary heat imbalance resulting from the combustion of hydrocarbons continues to further disrupt the Earth’s climate. Essentially, we are adding more carbon debt to our planetary credit card, passing on future generations with an unpayable liability.

To curb the scale and length of overshoot the global warming targets, the world ultimately needs to go well beyond the balancing impact of net zero and begin to drawdown past carbon outputs to reach net negative emissions.

The Political Distortion of Carbon Neutrality

According to the latest numbers from the international carbon research group, plant-based carbon removal is presently capturing the equal of about five percent of yearly CO2 from fuels, while technology-based CDR represents only about one-millionth of the carbon released from fossil fuels. More generous sector projections suggest around zero point one percent of total global emissions. Without meaning to be controversial, the political distortion of carbon neutrality is a deceptive gap that distracts from the research-based necessity to eradicate the primary cause of our warming world—carbon-based energy.

The Critical Requirement for Definite Steps

While this scientific reality 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 keep on postpone the pressing requirement for definite short-term measures. Until policymakers are brave enough to implement carbon pricing to terminate the age of hydrocarbons, we are releasing more and more carbon to the air, compounding the physical catastrophe now unfolding across the globe.

The dilemma we face is simple: take real action to the scientific reality of our predicament or endure the consequences of this deep ethical lapse for generations ahead.