🔗 Share this article

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

In spite of 30 years of United Nations climate conferences, approximately half of the CO2 built up in the atmosphere after the dawn of industrialization has been emitted since 1990. Coincidentally, 1990 was the publication of the initial scientific evaluation by the IPCC, which confirmed the threat of human-caused global warming. While researchers work on the Seventh Assessment Report, they do so knowing that scientific findings remains overshadowed by political influences. Despite well-intentioned efforts, the world is remains dangerously off track to prevent catastrophic climate change.

Record-Breaking CO₂ Levels and Carbon-Based Fuel Dependency

Recent data indicate that atmospheric carbon dioxide levels reached a record high of 423.9 parts per million in 2024, with the growth rate from 2023 to 2024 jumping by the largest yearly increase since record-keeping started in 1957. Based on the international carbon monitoring initiative, 90% of total global CO₂ emissions in 2024 came from the combustion of carbon-based energy sources, while the remaining 10% resulted from alterations in land use such as forest clearance and wildfires.

Although the increase in carbon emissions from fuels in recent times was driven by increased use of gas and oil—accounting for more than 50% of global emissions—coal burning also reached a record high, making up forty-one percent. In spite of Cop28’s global stocktake calling for nations to transition away from carbon fuels, global strategies still aim to extract over twice the amount of hydrocarbons in 2030 than is consistent with limiting planet heating to 1.5C, with continued extraction of natural gas rationalized as a less polluting bridge fuel.

The Mirage of Eco-Friendly Measures

Instead of focusing on economic incentives to accelerate the phase-out of fossil fuels, climate policies are overly dependent on feel-good eco-positive solutions that aim to neutralize carbon emissions by afforestation instead of reducing industrial emissions. Although protecting, expanding, and restoring ecological absorbers like woodlands and wetlands is beneficial in itself, research has demonstrated that there is not enough land to achieve the worldwide target of net zero emissions using nature-based solutions alone.

Approximately 1 billion hectares—an area larger than the United States of America—is needed to fulfill net zero pledges. Over forty percent of this land would need to be transformed from existing uses like food production to carbon sequestration projects by the year 2060 at an unprecedented rate.

Even if this regenerative utopia could be realized, woodlands take time to mature and are susceptible to fires, so they cannot be considered as a quick or lasting carbon storage solution, especially in a fast-changing environment. While severe temperatures and dryness affect larger regions, these sincere attempts could actually go up in smoke.

The Diminishing of Natural Carbon Sinks

Scientific evidence tells us that about half of the total CO₂ emitted each year remains in the atmosphere, while the remainder is taken up by oceans and terrestrial systems. With global heating, these natural carbon sinks are losing efficiency at soaking up CO₂, meaning that more carbon accumulates in the air, intensifying climate change. Transferring the reduction responsibility onto the agricultural and forest sectors simply relieves the oil and gas sector from the pressure to reduce emissions any time soon.

The Carbon Debt and Coming Populations

Achieving net zero by 2050 requires CO2 extraction (CDR), which currently depends largely on terrestrial methods to absorb surplus CO2 from the atmosphere. Polluters can simply purchase offsets to compensate for their emissions and proceed with normal operations. Meanwhile, the planetary heat imbalance resulting from the burning of fossil fuels continues to further destabilise the global climate system. Essentially, we are adding more carbon debt to our global account, leaving our descendants with an insurmountable burden.

To curb the magnitude and duration of exceeding the global warming targets, the planet ultimately needs to surpass the balancing impact of net zero and start to drawdown past carbon outputs to achieve a carbon-negative state.

The Policy Misrepresentation of Net Zero

According to the latest numbers from the Global Carbon Project, plant-based carbon removal is currently absorbing the equal of about five percent of yearly CO2 from fuels, while technology-based CDR represents only about a tiny fraction of the carbon released from fossil fuels. Optimistic industry estimates suggest around zero point one percent of total global emissions. 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 main source of our warming world—fossil fuels.

The Urgent Need for Concrete Action

Although this scientific reality should dominate talks at Cop30, history indicates that gradual, cautious steps and political kowtowing will prevail. Vague statements of long-term goals will continue to delay the pressing requirement for definite short-term measures. Until leaders have the courage to implement carbon pricing to terminate the age of hydrocarbons, we are adding increasing amounts of CO2 to the air, compounding the physical catastrophe now unfolding all around us.

The dilemma we confront is simple: take real action to the scientific reality of our crisis or suffer the consequences of this deep ethical lapse for centuries to come.