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As global leaders convene in Brazil for Cop30, it is crucial to evaluate how we are faring together in reducing worldwide emissions of greenhouse gases.

Despite 30 years of United Nations climate conferences, approximately half of the carbon dioxide accumulated in the atmosphere since the Industrial Revolution has been emitted since 1990. Incidentally, 1990 was the publication of the initial scientific evaluation by the IPCC, which verified the threat of anthropogenic climate change. While researchers work on the upcoming IPCC report, they do so knowing that their work remains overshadowed by political agendas. Despite sincere attempts, the world is still dangerously off track to avert dangerous global warming.

Unprecedented CO₂ Levels and Carbon-Based Fuel Dependency

Latest figures indicate that atmospheric carbon dioxide levels hit a record high of 423.9 parts per million in 2024, with the growth rate from the previous year jumping by the largest yearly increase since modern measurements began in 1957. According to the international carbon monitoring initiative, 90% of total global CO₂ emissions in last year originated from burning fossil fuels, while the remaining 10% resulted from land-use changes such as forest clearance and forest fires.

While 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—the use of coal also reached a record high, making up 41%. Despite the previous climate summit's evaluation calling for nations to move beyond carbon fuels, collective plans still intend to extract over twice the amount of fossil fuels in the year 2030 than is consistent with keeping planet heating to 1.5C, with ongoing drilling of natural gas rationalized as a lower emission transition fuel.

The Mirage of Nature-Based Solutions

Instead of focusing on financial motivators to accelerate the phase-out of carbon fuels, environmental strategies are overly dependent on feel-good eco-positive solutions that aim to cancel out CO2 output by planting trees instead of reducing industrial emissions. While conserving, expanding, and rehabilitating natural carbon sinks like woodlands and wetlands is inherently good, studies has shown that there is not enough land to achieve the global goal of carbon neutrality using nature-based solutions by themselves.

Roughly one billion hectares—a territory bigger than the USA—is needed to fulfill carbon neutrality commitments. 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.

Even if this ideal restoration could be achieved, woodlands take time to mature and are susceptible to fires, so they should not be viewed as a quick or lasting carbon storage solution, especially in a fast-changing environment. While extreme heat and aridity engulf more of the planet, these sincere attempts could literally go up in smoke.

The Weakening of Planetary Absorbers

Research data tells us that about half of the carbon dioxide released annually stays in the air, while the rest is taken up by seas and land ecosystems. With global heating, these environmental absorbers are becoming less effective at capturing CO₂, which means that more carbon builds up in the atmosphere, further exacerbating climate change. Transferring the reduction responsibility onto the agricultural and forest sectors simply relieves the fossil fuel industry from the urgency to cut pollution in the near future.

The Carbon Debt and Coming Populations

Achieving net zero by 2050 requires carbon dioxide removal (CDR), which at present depends largely on terrestrial methods to soak up excess carbon from the air. Emitting companies can easily buy carbon credits to compensate for their discharges and proceed with business as usual. Meanwhile, the planetary heat imbalance caused by the burning of fossil fuels continues to further disrupt the Earth’s climate. In effect, we are increasing our climate liability to our global account, leaving our descendants with an unpayable liability.

To curb the magnitude and duration of exceeding the global warming targets, the world eventually needs to surpass the neutralising effect of net zero and start to remove cumulative historical emissions to reach net negative emissions.

The Political Distortion of Net Zero

Based on the latest numbers from the Global Carbon Project, vegetation-based CDR is presently absorbing the equivalent of about five percent of annual fossil carbon dioxide emissions, while engineered carbon extraction accounts for only about one-millionth of the CO2 emitted from carbon sources. Optimistic sector projections suggest around zero point one percent of worldwide CO2 output. At the risk of sounding like a heretic, the policy twisting of carbon neutrality is an insidious loophole that takes focus away from the scientific imperative to eliminate the primary cause of our overheating planet—fossil fuels.

The Critical Requirement for Concrete Action

Although this research-backed truth should dominate discussions at Cop30, history indicates that gradual, cautious steps and political kowtowing will win out. Vague statements of long-term goals will keep on postpone the pressing requirement for definite short-term measures. Until leaders are brave enough to put a price on carbon to terminate the age of hydrocarbons, we are releasing more and more carbon to the atmosphere, worsening the physical catastrophe now unfolding all around us.

The dilemma we face is straightforward: take real action to the scientific reality of our crisis or suffer the results of this profound moral failure for generations ahead.