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As global leaders convene in Brazil for the 30th UN Climate Change Conference, it is vital to evaluate how we are faring together in lowering worldwide emissions of greenhouse gases.

Despite 30 years of United Nations climate conferences, nearly 50% of the CO2 built up in the atmosphere after the dawn of industrialization has been released after the year 1990. Coincidentally, 1990 was the publication of the First Assessment Report by the IPCC, which verified the danger of anthropogenic climate change. As scientists work on the Seventh Assessment Report, they do so knowing that their work remains eclipsed by political influences. Despite sincere attempts, the world is still far from the path to prevent dangerous global warming.

Record-Breaking CO₂ Levels and Fossil Fuel Dependency

Latest figures show that CO₂ concentrations reached a record high of 423.9 parts per million in the year 2024, with the increase rate from 2023 to 2024 jumping by the biggest annual rise since modern measurements began in the late 1950s. Based on the Global Carbon Project, ninety percent of worldwide carbon dioxide output in 2024 originated from burning fossil fuels, while the remaining 10% was due to alterations in land use such as deforestation and wildfires.

Although the rise in carbon emissions from fuels in 2024 was propelled by increased use of gas and oil—representing more than 50% of global emissions—coal burning also reached a record high, making up forty-one percent. Despite the previous climate summit's evaluation calling for nations to move beyond carbon fuels, collective plans still intend to produce more than double the amount of hydrocarbons in 2030 than is consistent with keeping global warming to 1.5 degrees Celsius, with ongoing drilling of gas rationalized as a less polluting transition fuel.

The Illusion of Nature-Based Solutions

Instead of concentrating on economic incentives to accelerate the elimination of fossil fuels, climate policies are overly dependent on feelgood eco-positive approaches that seek to cancel out CO2 output by afforestation instead of reducing factory discharges. While conserving, enlarging, and rehabilitating natural carbon sinks like woodlands and marshes is beneficial in itself, research has shown that there is not enough land to achieve the global goal of carbon neutrality using nature-based solutions alone.

Roughly one billion hectares—a territory larger than the United States of America—is needed to meet carbon neutrality commitments. More than 40% of this area would need to be transformed from current applications like agriculture to carbon sequestration projects by the year 2060 at an unprecedented rate.

Even if this ideal restoration could be realized, woodlands require years to grow and can burn down, so they should not be viewed as a fast or permanent CO2 retention method, especially in a rapidly shifting environment. As extreme heat and dryness engulf larger regions, these well-intentioned efforts could literally be destroyed by fire.

The Diminishing of Natural Carbon Sinks

Scientific evidence tells us that about 50% of the total CO₂ emitted annually stays in the air, while the rest is absorbed by oceans and land ecosystems. With global heating, these environmental absorbers are losing efficiency at soaking up CO₂, which means that more carbon builds up in the air, intensifying global warming. Shifting the reduction responsibility onto the agricultural and forest sectors effectively excuses the oil and gas sector from the pressure to reduce emissions in the near future.

The Carbon Debt and Coming Populations

Achieving carbon neutrality by mid-century requires CO2 extraction (CDR), which currently relies almost exclusively on land-based measures to soak up surplus CO2 from the air. Polluters can easily buy carbon credits to compensate for their emissions and continue with normal operations. At the same time, the planetary heat imbalance resulting from the burning of fossil fuels keeps on further destabilise the Earth’s climate. Essentially, we are increasing our climate liability to our global account, leaving our descendants with an unpayable liability.

To curb the scale and length of exceeding the global warming targets, the planet ultimately needs to surpass the neutralising effect of carbon neutrality and start to remove past carbon outputs 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 currently absorbing the equal of about 5% of annual fossil carbon dioxide emissions, while engineered carbon extraction represents only about one-millionth of the CO2 emitted from carbon sources. More generous industry estimates place it at around zero point one percent of total global emissions. Without meaning to be controversial, the political distortion of net zero is an insidious loophole that distracts from the scientific imperative to eliminate the main source of our overheating planet—fossil fuels.

The Critical Requirement for Definite Steps

Although this research-backed truth should dominate discussions at Cop30, past events suggests that gradual, cautious steps and political kowtowing will win out. Ambiguous promises of long-term goals will keep on delay the pressing requirement for definite short-term measures. Unless policymakers are brave enough to implement carbon pricing to terminate the age of hydrocarbons, we are releasing more and more carbon to the atmosphere, compounding the environmental disaster now unfolding all around us.

The challenge we face is simple: take real action to the evidence-based situation of our predicament or endure the results of this profound moral failure for generations ahead.