Weather and Climate

“One cold afternoon does not erase a warming trend, just as one bad hand does not decide a tournament.”

01 / PLAINLY

What it means, plainly

Weather is the atmosphere's short-term state; climate describes distributions and patterns over long periods.

02 / CONTEXT

A little more

Climate includes averages, variability, and extremes of temperature, rain, wind, and other variables for a defined region and period. One event can fit several climates; detecting change requires long records, comparisons, and careful attribution.

03 / WHY IT MATTERS

Why it matters

It prevents one day from becoming evidence about decades and separates questions about immediate forecasts from long-term risks.

04 / EXAMPLE

A familiar example

A cold wave can occur on a warming planet; the relevant questions concern changes in its frequency, intensity, and statistical context.

05 / LIMIT

What it does not mean

Climate is not merely an average that excludes extremes, and variable weather does not disprove climatic trends.

06 / NOTICE

Notice it in your day

Compare today's temperature with the daily range and then with a decades-long climate normal. Describe which question each comparison answers.

FINAL NOTE

The idea worth keeping

Before drawing a conclusion, state the variable, place, period, and reference comparison.

QUESTIONS / 02

Questions people still have

Can a cold day occur during global warming?

Yes. Warming shifts long-term distributions without eliminating all local weather variability.

Is climate only an average temperature?

No. It includes distributions, seasons, variability, extremes, and many atmospheric and oceanic variables.