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As global leaders assemble in the Brazilian Amazon for Cop30, it is crucial to assess how we are faring together in reducing worldwide emissions of greenhouse gases.

In spite of 30 years of UN climate summits, approximately half of the CO2 built up in the atmosphere after the dawn of industrialization has been released after the year 1990. Coincidentally, 1990 marked the release 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 eclipsed by political agendas. Despite well-intentioned efforts, the planet is still far from the path to prevent catastrophic climate change.

Record-Breaking CO₂ Levels and Fossil Fuel Dependency

Latest figures indicate that atmospheric carbon dioxide levels hit a new peak of 423.9 ppm in the year 2024, with the growth rate from 2023 to 2024 jumping by the biggest annual rise since record-keeping started in the late 1950s. Based on the Global Carbon Project, 90% of total global CO₂ emissions in 2024 came from burning fossil fuels, while the other tenth was due to alterations in land use such as deforestation and wildfires.

While the increase in fossil CO₂ emissions in recent times was propelled by increased use of natural gas and petroleum—accounting for over half of worldwide discharges—coal burning also reached a record high, constituting 41%. Despite the previous climate summit's evaluation urging nations to transition away from carbon fuels, collective plans still aim to extract over twice the quantity of hydrocarbons in 2030 than aligns with limiting planet heating to 1.5 degrees Celsius, with ongoing drilling of natural gas rationalized as a lower emission transition fuel.

The Mirage of Nature-Based Solutions

Instead of concentrating on financial motivators to accelerate the elimination of fossil fuels, climate policies are overly dependent on feel-good eco-positive approaches that aim to neutralize CO2 output by planting trees rather than reducing industrial emissions. While conserving, expanding, and restoring natural carbon sinks like woodlands and marshes is beneficial in itself, studies has demonstrated that there is not enough land to reach the worldwide target of net zero emissions using ecological methods by themselves.

Approximately one billion hectares—an area larger than the USA—is needed to meet carbon neutrality commitments. Over forty percent of this area would need to be transformed from existing uses like agriculture to carbon capture initiatives by 2060 at an unprecedented rate.

Even if this regenerative utopia could be realized, forests require years to grow and can burn down, so they should not be viewed as a fast or permanent carbon storage solution, particularly in a rapidly shifting climate. As severe temperatures and dryness engulf more of the planet, these sincere attempts could literally be destroyed by fire.

The Weakening of Natural Carbon Sinks

Research data tells us that about 50% of the total CO₂ emitted each year stays in the air, while the rest is absorbed by oceans and terrestrial systems. As the planet warms, these natural carbon sinks are becoming less effective at capturing CO₂, meaning that more carbon accumulates in the atmosphere, further exacerbating global warming. Shifting the mitigation burden onto the land sector simply relieves the oil and gas sector from the urgency to reduce emissions any time soon.

The Carbon Debt and Coming Populations

Achieving net zero by 2050 demands CO2 extraction (CDR), which at present depends largely on land-based measures to absorb surplus CO2 from the air. Polluters can easily buy carbon credits to compensate for their discharges and proceed with normal operations. Meanwhile, the planetary heat imbalance caused by the combustion of hydrocarbons keeps on further destabilise the global climate system. In effect, we are adding more carbon debt to our global account, leaving future generations with an unpayable liability.

To limit the scale and length of exceeding the Paris Agreement temperature goals, the planet eventually needs to surpass the neutralising effect of net zero and start to remove past carbon outputs to reach a carbon-negative state.

The Political Distortion of Net Zero

Based on the latest numbers from the Global Carbon Project, vegetation-based CDR is presently absorbing the equal of about 5% of annual fossil carbon dioxide emissions, while engineered carbon extraction accounts for only about one-millionth of the CO2 emitted from carbon sources. More generous sector projections suggest around zero point one percent of worldwide CO2 output. At the risk of sounding like a heretic, the political distortion of net zero is a deceptive gap that distracts from the research-based necessity to eradicate the main source of our overheating planet—carbon-based energy.

The Critical Requirement for Definite Steps

Although this scientific reality should lead talks at the climate summit, past events indicates that gradual, cautious steps and deference to politics will prevail. Ambiguous promises of future ambition will keep on delay the pressing requirement for definite short-term measures. Unless policymakers are brave enough to put a price on carbon to terminate the age of hydrocarbons, we are releasing more and more carbon to the air, compounding the physical catastrophe now unfolding all around us.

The dilemma we face is simple: genuinely respond to the scientific reality of our crisis or endure the consequences of this deep ethical lapse for centuries to come.