In a clear reaffirmation of climate science, top scientists have released growing evidence confirming that greenhouse gases pose a significant danger to our planet and human welfare. This scientific consensus, highlighted in a recent report from the National Academies of Sciences, Engineering, and Medicine, comes at a time when political forces are attempting to undermine decades of climate research.
The Scientific Consensus on Greenhouse Gases
The National Academies’ latest report, titled “Effects of Human-Caused Greenhouse Gas Emissions on U.S. Climate, Health, and Welfare,” confirms what climate scientists have been saying for decades: human activities are significantly altering Earth’s climate through greenhouse gas emissions.
According to the report, long-term observations “confirm unequivocally that greenhouse gas emissions are warming Earth’s surface and changing Earth’s climate.” The findings specifically support the scientific basis for the EPA’s endangerment finding, which identifies greenhouse gases as threats to public health and welfare.
This isn’t a new revelation. The scientific consensus on climate change is overwhelming, with studies consistently showing that 97-99% of actively publishing climate scientists agree that human activities are the primary driver of recent climate change. The Intergovernmental Panel on Climate Change (IPCC) has been instrumental in establishing this broad, evidence-based consensus, with their reports serving as the most comprehensive assessments of climate science available.
Understanding the Greenhouse Effect
The greenhouse effect is a natural process that is essential to life on Earth. As NASA explains, greenhouse gases in our atmosphere trap heat from the Sun, keeping our planet warm enough to sustain life. However, human activities have dramatically intensified this process.
The primary greenhouse gases include:
- Carbon dioxide (CO2) – from burning fossil fuels and deforestation
- Methane (CH4) – from agriculture, waste management, and energy production
- Nitrous oxide (N2O) – from agriculture and industrial activities
- Fluorinated gases – from industrial processes
According to NASA’s Global Climate Change website, human-made emissions in the atmosphere are trapping and slowing heat loss to space. This increased heat trapping is causing global temperatures to rise, with 2023 being the hottest year on record.
Political Implications and the Endangerment Finding
The timing of the National Academies’ report is particularly significant given ongoing political battles over climate regulations. In July 2025, the Trump administration moved to rescind the EPA’s 2009 Endangerment Finding, which determined that greenhouse gases endanger public health and welfare.
This finding, established during the Obama administration, has been the legal basis for numerous climate regulations, including emissions standards for vehicles and power plants. The Trump administration’s attempt to overturn this finding represents a direct challenge to the scientific consensus that the National Academies’ report reinforces.
As reported by multiple news outlets, the endangerment finding underpins virtually all U.S. climate regulations. Revoking it would effectively eliminate the legal basis for controlling greenhouse gas emissions from major sources, including coal and gas-fired power plants, vehicle exhaust, and methane from the oil and gas industry.
Why This Matters
The stakes couldn’t be higher. The IPCC has stated that limiting global warming to 1.5°C above pre-industrial levels requires global greenhouse gas emissions to peak before 2025 at the latest. With greenhouse gas emissions reaching 59 gigatonnes of carbon dioxide equivalent in 2019, according to the IPCC Sixth Assessment Report, we are running out of time to prevent catastrophic climate impacts.
These impacts are already being felt worldwide:
- More frequent and severe heatwaves
- Intensified storms and hurricanes
- Rising sea levels threatening coastal communities
- Changes in precipitation patterns affecting agriculture
- Loss of biodiversity and ecosystem disruption
Countering Climate Change Denial
The urgency expressed in both the Reddit post and the National Academies’ report reflects the scientific community’s growing concern about climate change denial. Despite overwhelming evidence, a small but vocal minority continues to challenge the scientific consensus on climate change.
The National Academies’ report serves as a powerful counter-narrative to this denial. By confirming “beyond dispute” that greenhouse gas dangers are real and measurable, the report strengthens the scientific foundation for climate action.
As the report notes, “the severity of expected change [is] increasing with every ton of greenhouse gas emitted.” This message underscores that each delay in taking action results in more severe consequences down the road.
The Path Forward
With the scientific evidence now more conclusive than ever, the question is no longer whether greenhouse gases pose a danger, but what society will do about it. The National Academies’ report makes clear that the science supports immediate action to reduce greenhouse gas emissions.
Options for addressing this challenge include:
- Transitioning to renewable energy sources
- Improving energy efficiency in buildings and transportation
- Implementing carbon pricing mechanisms
- Protecting and restoring forests and other carbon sinks
- Investing in climate adaptation measures
The contrast between the scientific consensus and political resistance highlights the need for public engagement on climate issues. Reports like the one from the National Academies play a crucial role in translating complex scientific findings into accessible information that can inform public policy and personal choices.
As we face increasing climate impacts and political challenges to science-based policy, reports from authoritative institutions like the National Academies become even more vital. They provide a crucial anchor of evidence-based information in an era when scientific facts are sometimes treated as optional.
The message from the scientific community is clear: greenhouse gases are, in fact, a danger to our planet and our future. The growing body of evidence makes this assertion not just scientifically sound, but increasingly urgent.
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