SCHYLER EDMUNDSON
Earth is Warming, So What?
By Schyler Edmundson, Spring 2025
Abstract: This essay confronts the growing sentiment that global warming is inconsequential by directly addressing the question, “So what?” It systematically refutes common counterarguments, such as the claim that Earth’s climate always changes, or that melting Arctic ice could be beneficial, by presenting current climate science, observed data trends, and projected future impacts. Drawing on recent literature, the piece explains how anthropogenic greenhouse gas emissions have accelerated warming beyond natural cycles, causing systemic disruptions including the loss of Arctic reflectivity, permafrost thaw, sea level rise, mass extinction risk, and large-scale human displacement. It also explores the snowball effect of feedback loops and the geopolitical implications of climate-induced migration and conflict. By examining both physical Earth systems and socio-political consequences, the essay establishes that climate change is not just an environmental concern but a planetary systems crisis with existential risks to human civilization.

Introduction: Is It Really That Big a Deal?
Climate change does not mean the planet will die. Earth will keep spinning. What it means is that human life, as we know it, will be tested in ways it has never faced before.
​
When 97 percent of climate scientists agree that global warming is caused by human activity [1], it is generally a safe bet to believe them. This is not a fringe opinion. It is a consensus grounded in decades of peer-reviewed evidence and real-world observation, supported by leading institutions like NASA, NOAA, the Intergovernmental Panel on Climate Change, and national science academies across the globe.
​
But even if you do not read scientific journals, the signs are all around us. Summers are getting hotter. Wildfire seasons are longer, more intense, and the smoke is affecting millions, even in cities far from the flames. Grocery bills are rising because droughts and floods are destroying crops. Cherry blossoms bloom earlier than they used to, and ski trips are cancelled more often because there simply is not enough snow. Hurricanes are stronger, roads are melting in extreme heat, and coastal cities are experiencing more frequent flooding. These are not future threats. They are already here.
​
Still, a new kind of skepticism has emerged. It does not say climate change is fake. It asks, quietly or sarcastically, "So what?" or "Is it really that bad?" Some say, "Science and technology will solve it," or "Humans will adapt just like we always have." Others believe the changes are minor or even beneficial, arguing that warming could make more land habitable.
​
This paper addresses that line of thinking head on. It examines the most common arguments used to dismiss or downplay climate change: that Earth has always gone through natural cycles, that a few degrees of warming is harmless, or that humanity can easily adapt. It then systematically refutes each with clear, evidence-based reasoning.
The reality is simple. Earth is warming, and human activity is the primary cause. But the consequences are not small adjustments. They are foundational shifts that threaten food systems, water access, ecosystems, economies, and geopolitical stability.
​
Imagine you are in a boat and a small leak begins. At first, it seems manageable. The water is only rising slowly. But ignore it long enough, and eventually the entire vessel becomes unstable. Climate change is that leak, except the boat is modern civilization. And we are running out of time to patch the hole.
​
1. Climate Change Is Not Just a Cycle It’s an Acceleration
One common misconception is that Earth’s climate has always shifted, and that what we are witnessing today is simply another natural fluctuation. While it is true that Earth has experienced glacial and interglacial cycles, the rate of current warming is unprecedented in history. Paleoclimate records show that past climate transitions occurred over thousands of years, not decades [2]. Today, global temperatures are rising at approximately 0.2°C per decade, a rate roughly 10 times faster than post-glacial warming events [3].
​
What’s more, the Intergovernmental Panel on Climate Change (IPCC) has stated with high confidence that 100% of the observed warming since 1950 is attributable to human activity, mainly through greenhouse gas emissions [4]. This rapid change is not part of a benign natural cycle; it is a destabilizing force driven by anthropogenic activity.
​
Put simply, the Earth is changing too fast because of us. Imagine stretching playdough: when pulled slowly, it adapts and extends. But pull it too quickly, and it snaps. Earth's climate system works similarly. Gradual changes allow ecosystems to adapt over time. But when warming occurs rapidly, the system can’t adjust, increasing the risk of widespread breakdowns in natural and human systems.
​
2. Earth’s Energy Imbalance: The Climate System Is Overheating
A critical measure of global warming is Earth’s energy imbalance, the difference between the solar energy the planet absorbs and the heat it radiates back into space. When more energy is retained than released, the planet heats up. Satellite data show that this imbalance more than doubled between 2005 and 2019 [5]. By 2023, Earth was absorbing 1.8 watts per square meter more than it emitted, far above earlier model predictions [6].
​
Most of this excess heat is stored in the oceans, which act like a giant battery for the climate system. Warmer oceans fuel more intense storms, accelerate ice melt, and disrupt marine ecosystems. Over 90 percent of the trapped heat has gone into ocean waters, contributing to coral bleaching, marine heatwaves, and stronger hurricanes [7]. The 2023 Atlantic hurricane season was among the most active on record, driven in part by these rising sea temperatures [8]. Meanwhile, ice sheets in Greenland are melting at alarming rates, releasing hundreds of billions of tons of freshwater annually and contributing to our ocean imbalance [9].
​
In other words, Earth is running a fever. Like a human body, even a small but sustained temperature rise can overwhelm natural systems. If left unchecked, it risks triggering cascading failures across the entire climate system.
​​​
3. Arctic Melting Isn’t an Opportunity It’s a Catastrophe
Some argue that melting Arctic ice could open new shipping routes or reveal usable land. This view misses the Arctic’s crucial role in climate stability. The region is warming nearly four times faster than the global average [10], largely due to the ice albedo feedback: when reflective sea ice melts, darker ocean surfaces absorb more heat, accelerating further melting [11].
​
Even more concerning is permafrost thaw. Permafrost contains vast amounts of organic matter including frozen plants, peat, and ancient soils that have accumulated over millennia. These materials have remained locked in place because the ground stays below freezing. Thawing allows microbes to break them down, releasing carbon dioxide and methane. The Arctic permafrost stores approximately 1,500 billion tons of carbon, nearly twice the carbon currently in the atmosphere [12].
​
The loss of these frozen carbon stores could trigger a self-reinforcing warming cycle. Additionally, warming weakens the Arctic jet stream, altering weather patterns worldwide and causing longer droughts, extreme cold snaps, and erratic precipitation [13].
​
To put it simply, the Arctic is the planet’s thermostat. Melting it is like pulling the plug. Instead of maintaining balance, we risk overheating the entire system.
​
4. The Snowball Effect: Feedback Loops and Climate Tipping Points
Feedback loops are self-reinforcing processes that intensify climate change once set in motion. Think of them like rolling a snowball down a hill. Once it starts gaining speed and size, it becomes harder to stop. One example is the ice-albedo feedback: as reflective polar ice melts, darker ocean or land surfaces absorb more solar energy, leading to further warming and faster ice melt [11]. Another is permafrost thaw, which exposes previously frozen organic material. As microbes break it down, large amounts of methane and carbon dioxide are released, both potent greenhouse gases [12].
​
Warming oceans represent a third major loop. Normally, oceans act like a sponge, absorbing a large share of our carbon emissions. But as ocean temperatures rise, their ability to hold carbon drops, allowing more COâ‚‚ to remain in the atmosphere and accelerate warming. Similarly, higher temperatures dry out forests, increasing the likelihood of wildfires that release stored carbon and reduce future carbon absorption capacity.
​
These feedbacks aren’t isolated, they interact. For instance, Arctic ice loss warms the region, which in turn speeds up permafrost thaw and ocean warming. Together, they push the climate system closer to tipping points, which are critical thresholds beyond which changes become irreversible on human timescales [14].
​
Examples of these tipping points include the disintegration of the Greenland and West Antarctic Ice Sheets, the dieback of the Amazon rainforest, and the potential shutdown of the Atlantic Meridional Overturning Circulation (AMOC), a system that helps regulate global climate. If AMOC weakens significantly, it could alter rainfall patterns, intensify storms, and destabilize agricultural systems across multiple continents.
​
Crossing just one of these thresholds can trigger cascading effects, similar to removing a keystone from a bridge. The rest of the structure becomes unstable, and collapse is no longer a question of if, but when. Once these points are crossed, reversing course may be impossible for generations, locking us into centuries of higher temperatures, rising seas, and increasing environmental volatility.
​
The danger of feedback loops and tipping points is not just their impact, but their stealth. They often progress quietly until it’s too late. Like invisible cracks forming in a dam, they may not be noticed until the entire structure gives way.
​
5. Extinctions and Ecosystem Collapse
The global biodiversity crisis is deeply connected to climate change. According to the Intergovernmental Science Policy Platform on Biodiversity and Ecosystem Services, around one million animal and plant species are at risk of extinction, many within the next few decades [15].
​
This mass loss of life is not just a tragedy for the natural world. It has serious consequences for human well-being. Take pollinators as an example. Bees, butterflies, and other insects play a crucial role in the reproduction of plants that make up much of our food supply. About 75 percent of global food crops, including fruits, vegetables, and nuts, rely on pollination to some extent [16]. When pollinators disappear, so does our ability to grow these crops. It is like trying to run a bakery without flour, the most essential ingredient is missing.
​
The degradation of coral reefs, deforestation, and the extinction of keystone species, those that play a critical role in the health of entire ecosystems, weakens the stability of natural systems. This breakdown creates ripple effects that stretch far beyond ecology. Economies that depend on stable ecosystems for agriculture, fisheries, pharmaceuticals, and tourism are already experiencing disruptions.
​
Imagine ecosystems as the scaffolding that holds up a tall building. Each species is a piece of that scaffolding. Remove one or two, and the structure might hold. Remove too many, and the whole thing begins to collapse. What we are witnessing now is the weakening of those supports on a global scale.
​
If the trend continues, we risk not just the loss of biodiversity, but the unraveling of the natural systems that support modern civilization. This includes food security, clean water, disease control, and stable economies. Biodiversity is not a luxury. It is a foundation of life as we know it.
​
6. Coastal Cities at Risk: The Human Cost of Rising Seas
Sea level rise is one of the most visible and dangerous consequences of global warming. By 2050, more than 800 million people could be living in coastal areas that are highly vulnerable to flooding, storm surges, and permanent submersion [17]. Major urban centers like New York, Shanghai, London, and Mumbai are at growing risk, placing lives, livelihoods, and national economies in jeopardy.
​
It is easy to dismiss this threat by suggesting that building homes near the ocean was a poor decision. But this view oversimplifies the reality. Coastal areas have long been hubs of human settlement due to their access to trade, transportation, fertile land, and natural resources. These regions are not just picturesque locations. They are economic engines. In the United States, nearly 40 percent of the population lives in coastal counties [18]. These zones are home to ports, businesses, and industries that drive national and global commerce. Ignoring their importance is like blaming people for building cities near rivers without acknowledging that those rivers powered the growth of civilizations.
​
The financial systems supporting these regions are beginning to strain. Insurance companies, faced with mounting claims from extreme weather and flood damage, are pulling out of high risk coastal markets. In California and Florida, some of the largest insurers have stopped issuing new policies in vulnerable zones altogether [19]. For homeowners, this means unaffordable premiums or the complete inability to secure insurance at all. For governments, it signals a growing liability, as public systems are forced to absorb the fallout.
​
Think of coastal infrastructure as a sandcastle. When the tide is calm, it stands strong. But as the sea creeps in, each wave chips away at its foundation. Without intervention, the rising water eventually swallows the entire structure. In human terms, this means lost homes, displaced communities, and economic collapse in places we cannot afford to lose. Addressing sea level rise is not about preserving beachfront property. It is about protecting the social and economic foundations of the modern world.
​
7. Climate Change as a Threat Multiplier: Conflict and Migration
Climate change is not just an environmental issue. It acts as a threat multiplier. This means it makes existing social, economic, and political problems even worse. It does not create these problems out of thin air, but it adds stress to systems that are already under pressure.
​
Most concerning is the fact that the people who are hit hardest are often those who have contributed the least to global emissions. Communities in the Global South, Indigenous nations, and low income populations in urban centers are often the most vulnerable. They have fewer resources to adapt, yet they face some of the most severe impacts.
One example is the Syrian civil war. A long and intense drought, made worse by climate change, devastated crops and livelihoods in rural areas. This forced people to move into crowded cities, which increased tensions and played a role in sparking the conflict [20]. Similar patterns are playing out today in the Sahel region of Africa. There, expanding deserts are reducing the amount of usable land. As farmers and herders compete for shrinking resources, the risk of violence and instability rises.
​
The World Bank estimates that more than 200 million people could be forced to move because of climate related impacts by the year 2050 [21]. This includes rising sea levels swallowing coastlines, prolonged droughts making farmland unusable, and water shortages becoming more frequent.
​
Think of society as a tightly stretched net. Climate change adds weight to that net in multiple places at once. If the weight becomes too great in just one area, it can cause the entire system to tear apart. Migration pressures could overwhelm borders, disrupt economies, and create new humanitarian crises. These shifts have the potential to reshape global politics, redefine national security, and test the strength of international cooperation.
​
Climate change is not happening in a vacuum. It is happening on top of all the other challenges we already face. That is what makes it so dangerous.
​
Conclusion: The Real “So What”
Climate change does not mean the planet will die. It means human life as we know it may cease to exist. Earth will persist, but the ecosystems, coastlines, and climates that supported the rise of agriculture, cities, and civilization are being fundamentally reshaped.
​
The question is not whether the Earth can survive a few more degrees of warming. It is whether human society, our food systems, our water sources, and our built environments can. From sea level rise to pollinator collapse, the cascading effects of warming ripple through every aspect of modern life. The same climate disruption that is flooding island nations and fueling wildfires in Canada is also influencing insurance markets in California, migration patterns in Africa, and the price of food on every continent.
​
What makes this moment especially perilous is not only the scale of the crisis, but the speed at which it’s accelerating and our political and economic systems’ lagging response. The longer we postpone decisive climate action, the more we commit ourselves to feedback loops and irreversible damages.
​
To say “so what” in the face of this is to ignore or not understand the overwhelming scientific evidence, the lived experiences of millions already affected, and the mounting cost of delay. It is not only morally indefensible but strategically shortsighted.
​
There is still a window, however narrow, in which to act. That window demands an honest reckoning with what’s at stake and a refusal to allow willful ignorance or comfortable fatalism to set the terms of the debate.​ Because climate change is not just about polar bears or future generations. It’s about who we are now, what we value, and what kind of civilization we are willing to fight for.​
​
Works Cited
[1] Cook, J., et al. (2016). Consensus on consensus: a synthesis of consensus estimates on human-caused global warming. Environmental Research Letters, 11(4), 048002.
[2] Alley, R. B. (2000). The Younger Dryas cold interval as viewed from central Greenland. Quaternary Science Reviews, 19(1-5), 213-226.
[3] IPCC. (2021). Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report.
[4] IPCC. (2013). Summary for Policymakers. In: Climate Change 2013: The Physical Science Basis.
[5] Loeb, N. G., et al. (2021). Satellite and ocean data reveal marked increase in Earth’s heating rate. Geophysical Research Letters, 48(13).
[6] NASA. (2023). Earth’s Energy Imbalance Continues to Grow. Retrieved from https://climate.nasa.gov
[7] Cheng, L., et al. (2021). Upper Ocean Temperatures Hit Record High in 2020. Advances in Atmospheric Sciences, 38(5), 690-695.
[8] NOAA. (2023). 2023 Atlantic Hurricane Season. Retrieved from https://www.noaa.gov
[9] NASA GRACE Mission. Greenland Ice Loss. Retrieved from https://climate.nasa.gov
[10] Rantanen, M., et al. (2022). The Arctic has warmed nearly four times faster than the globe since 1979. Communications Earth & Environment, 3(1).
[11] Pistone, K., Eisenman, I., & Ramanathan, V. (2014). Observational determination of albedo decrease caused by vanishing Arctic sea ice. PNAS, 111(9), 3322–3326.
[12] Schuur, E. A. G., et al. (2015). Climate change and the permafrost carbon feedback. Nature, 520(7546), 171–179.
[13] Cohen, J., et al. (2020). Divergent consensuses on Arctic amplification influence Northern Hemisphere winter weather. Nature Climate Change, 10, 20–29.
[14] Lenton, T. M., et al. (2019). Climate tipping points—too risky to bet against. Nature, 575(7784), 592–595.
[15] IPBES. (2019). Global Assessment Report on Biodiversity and Ecosystem Services. Retrieved from https://ipbes.net
[16] Klein, A. M., et al. (2007). Importance of pollinators in changing landscapes for world crops. Proceedings of the Royal Society B, 274(1608), 303-313.
[17] Kulp, S. A., & Strauss, B. H. (2019). New elevation data triple estimates of global vulnerability to sea-level rise and coastal flooding. Nature Communications, 10(1), 4844.
[18] NOAA Office for Coastal Management. (2022). Population Trends Along the Coastal United States: 1970–2020. Retrieved from https://coast.noaa.gov
[19] Insurance Information Institute. (2023). Climate Risk and Insurance Trends. Retrieved from https://www.iii.org
[20] Kelley, C. P., et al. (2015). Climate change in the Fertile Crescent and implications of the recent Syrian drought. PNAS, 112(11), 3241–3246.
[21] Clement, V., et al. (2021). Groundswell Part 2: Acting on Internal Climate Migration. The World Bank. Retrieved from https://www.worldbank.org