Climate Change: The One Number That Settles the Argument

Start with this: according to NASA, Earth's global surface temperature in 2025 was 2.14 °F (1.19 °C) above the 1951–1980 average. That's not a model. That's a measurement. And 2024 was the hottest year on record since 1880. You don't need a PhD to see the trend. You need to stop treating this as a debate and start treating it as a diagnosis.

I'm going to be blunt: if you're still asking whether climate change is real, you're asking the wrong question. The right question is what you're going to do about it. Here are the questions people actually ask, answered without the hedging.

Isn't the climate always changing? Why is this different?

Yes, the climate has changed naturally—ice ages, volcanic winters, solar cycles. But those changes unfold over thousands of years, not decades. The current warming is happening at a pace that tracks precisely with the rise in greenhouse gases from burning fossil fuels (EPA). Carbon dioxide enters the atmosphere through burning coal, natural gas, and oil, and it's removed when plants absorb it. We've tipped the balance. The speed is the fingerprint.

How can you predict climate if you can't predict weather next week?

This is the most common misconception, so let's kill it. Weather reflects short-term conditions—minute-to-minute, season-to-season. Climate is the average of weather over time and space. As NOAA puts it, "climate is what you expect, weather is what you get." You can't predict the exact day of a heat wave months out, but you can predict that July will be hotter than January. That's climatology: the analysis of slower-acting influences like ocean circulation and solar radiation (Britannica).

What's the single biggest driver of sea level rise?

Two things, and they're both caused by warming. First, thermal expansion—water expands as it heats. Second, melting land-based ice. The ocean absorbs more than 90 percent of the extra heat trapped by human emissions (NOAA). That heat is going somewhere. In 2014, global sea level was 2.6 inches above the 1993 average, and it's rising about one-eighth of an inch per year. That doesn't sound like much until you realize almost 40 percent of the U.S. population lives in coastal areas where flooding and erosion are already a problem.

Are hurricanes getting worse because of climate change?

The data on frequency isn't showing a clear trend—an average Atlantic season has 14 named storms, 7 hurricanes, and 3 major hurricanes (NOAA). But intensity is a different story. Warmer ocean water fuels stronger storms. The science here is still developing, but the risk is real. Don't wait for a definitive answer to prepare. If you live on the coast, know your evacuation zone.

What about the ozone hole? Did we fix that?

Yes, largely. The ozone layer sits about 15 to 40 kilometers up and protects life from UV radiation (EPA). We banned CFCs, and the hole is shrinking. But that's a different problem from climate change. Ozone depletion was about chemicals like CFCs; climate change is about greenhouse gases. Don't confuse the two. The ozone success story proves we can solve global environmental problems when we act.

Isn't carbon dioxide just a trace gas? How can it matter?

Trace doesn't mean trivial. CO2 is measured in parts per million, but it's incredibly effective at trapping heat. And we're not just adding CO2—we're adding methane from livestock and landfills, and fluorinated gases that trap thousands of times more heat per molecule than CO2 (EPA). Small concentrations, big effect. That's chemistry.

What can I actually do that matters?

Individual actions help, but they're not enough. You need to push for systemic change. Here's where to start:

• Vote for candidates who take climate science seriously.
• Support policies that price carbon or invest in renewables.
• Cut your own emissions where you can—fly less, drive less, eat less meat.

Quick tip: The most impactful thing you can do is talk about it. Silence lets misinformation win.

The bottom line: climate change is here, it's us, and it's serious. But we have the tools to fix it. The only question is whether we'll use them in time. Stop debating the diagnosis and start demanding the treatment.

Sources

• NASA / Global Temperature - https://climate.nasa.gov/vital-signs/global-temperature/
• NOAA NOS / Weather vs Climate - https://oceanservice.noaa.gov/facts/weather_climate.html
• EPA / Overview of Greenhouse Gases - https://www.epa.gov/ghgemissions/overview-greenhouse-gases
• NOAA NOS / Sea level is rising - https://oceanservice.noaa.gov/facts/sealevel.html
• NOAA NHC / Tropical Cyclone Climatology - https://www.nhc.noaa.gov/climo/
• EPA / Ozone layer science - https://www.epa.gov/ozone-layer-protection/basic-ozone-layer-science