Climate warming risks amplified by natural greenhouse gas emissions

Scientific projections indicate a significant risk of global temperatures exceeding the 1.5 degree Celsius threshold above pre-industrial levels between 2026 and 2030. This warming trend is driven by a combination of structural climate shifts and natural fluctuations, such as El Niño, which can exacerbate flooding and droughts.

Research highlights a critical phenomenon known as Warming Induced Emissions (WIE), or warming amplifying feedbacks. This process occurs when rising temperatures cause natural sources—including melting permafrost, wildfires, wetlands, and warming open waters—to release additional carbon dioxide and methane.

Studies published in Environmental Research Letters suggest that WIE could add between 0.2 and 0.4 degrees Celsius of warming by 2100, potentially amplifying post-2020 anthropogenic warming by 20% to 30%. Experts warn that current climate models and the IPCC may be underestimating total warming and overestimating remaining carbon budgets because they do not yet comprehensively incorporate these feedback loops.