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.
Chart 1 of 2 · Health
How does heart disease compare with cancer as a cause of death in the US?
The interactive chart needs JavaScript. The numbers are on the chart's page.
In 1950 there were about 3 heart disease deaths for every cancer death in the US. By 2018 there were 1.1, because the heart disease death rate fell much faster than the cancer rate; around 2012 the two came within a few percent of each other. Heart disease had the higher rate in every year from 1900 to 2018. The ratio compares age-adjusted death rates from one CDC dataset, which stops at 2018.
Questions to discuss
- In one sentence of your own, what does this chart show?
- Find the biggest change or difference in the chart. What might explain it?
- Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?
Source: CDC National Center for Health Statistics, Age-adjusted death rates for selected major causes of death (Public domain (U.S. government work)) · Data as of Dec 31, 2018
Open the chart and its numbersChart 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
- Compare the United States, China and India. Which emits the most per person, and is that the one that emits the most in total?
- Why might some small countries have the highest figures on the chart?
- Which seems fairer for comparing countries' share of the blame for climate change, total emissions or emissions per person? Why?
Source: World Bank, World Development Indicators: Carbon dioxide (CO2) emissions excluding LULUCF per capita (t CO2e/capita) (CC BY 4.0 (credit the World Bank)) · Data as of Dec 31, 2024
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