Chart assignment

Charts to read and discuss

Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.

  1. How many banks are there in the U.S.?
  2. How much carbon dioxide does each country emit per person?

Chart 1 of 2 · Banks

How many banks are there in the U.S.?

The interactive chart needs JavaScript. The numbers are on the chart's page.

There were 3,806 FDIC-insured commercial banks at the end of 2025, down from 14,496 in 1984, the most since the FDIC began in 1934. The number held near 13,000 to 14,500 for fifty years, while many states limited banks to one office or one state; once those limits were lifted in the 1980s and 1990s, banks merged and fewer new ones opened. The count leaves out savings institutions (thrifts), which the FDIC counts only since 1984; there were 521 of them at the end of 2025.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: FDIC BankFind Suite, historical bank data (Public domain (U.S. government work; FDIC)) · Data as of Dec 31, 2025

Open the chart and its numbers

Chart 2 of 2 · World

How much carbon dioxide does each country emit per person?

The interactive chart needs JavaScript. The numbers are on the chart's page.

In 2024, people in the United States emitted 13.6 tonnes of carbon dioxide each, in China 9.3 and in India 2.2, against 4.7 worldwide. The highest figure was 82.8 tonnes in Palau, then Qatar (47.3) and Bahrain (23.9). Search 203 countries and territories. The figures count carbon dioxide from burning fuel, industry and other sources, but not from changes in land use such as cutting forests; in a small country, a few power plants, refineries or fuel sales spread over few people can make the figure very high.

How to read this chart

Each bar is the carbon dioxide a country put into the air in a year, divided by its population, in tonnes per person. The dashed line is the world. A country can emit a lot in total but little per person if it has many people, and a tiny country with a refinery or power plant can top the list.

Questions to discuss

  1. Compare the United States, China and India. Which emits the most per person, and is that the one that emits the most in total?
  2. Why might some small countries have the highest figures on the chart?
  3. Which seems fairer for comparing countries' share of the blame for climate change, total emissions or emissions per person? Why?

Teachers: make your own chart assignment, or change this one. Free, no account needed.