Occasionally, there appears a data visualization so simple, so elegant, so descriptive that it takes one’s breath away.
That describes climate stripes.
How it Works:
Climate stripes are a way of looking at climate change that use no words and no numbers — just a series of vertical colored bars that show the progressive heating of our planet in a single, striking image.
Professor Ed Hawkins of the University of Reading in the U.K. created this visual tool in 2018. The data for most countries come from the Berkeley Earth temperature dataset; the data for the others come from their national meteorological agency — for the U.S. that is NOAA, the National Oceanic and Atmospheric Administration.
The graphic looks like a colorful barcode. Each stripe represents the average temperature for a single year, compared with the average temperature of a longer period; more than a century of data is presented. Blue shades represent cooler than average temperatures; red shades are hotter. The deep red shades on the right hand side indicate the rapid warming of recent decades.
There’s a tool on the web that allows the user to create climate stripes for over 200 locations globally. Here’s the one for Maryland using data from 1895 to 2022, with years indicated:
An alternate way to present these same temperature data is with a graph. Still simple and still striking:
NOAA has developed a tool that produces climate stripes for each U.S. county.
Using those county data, here’s a climate stripes image that compares our Eastern Shore counties with each other, with Maryland, with the U.S., and with the whole earth.
There is a tradition that on each summer and winter solstice, people “show their stripes” and post images using stripes on social media accounts with the #showyourstripes hashtag. Just two weeks ago, Prof. Hastings posted this image — a reproduction of this year’s global stripes projected onto the white cliffs of Dover in the U.K.:
These graphics are specifically designed to be as simple as possible, and to start conversations about our warming world and the risks of climate change. The images are governed by a Creative Commons 4.0 use license, so we all can use them as long as we give credit to Prof. Hawkins and include a link back to the website.
This summer, as the U.S. is experiencing hazardous air quality due to wildfires, widespread drought conditions, and extreme heat due to stagnant heat domes — all effects of climate change — is a perfect time to share these images on social media. We can’t do enough to remind people of the risks of climate change.
How You Can Help:
Post climate stripes on social media. Now. No need to wait for the winter solstice.
Copy this sample facebook posting or write your own. Copy any of the images in this article to post or make your own at https://showyourstripes.info/:
Jan Plotczyk spent 25 years as a survey and education statistician with the federal government, at the Census Bureau and the National Center for Education Statistics. She retired to Rock Hall.
Title image: Pond at Pickering Creek Audubon Center, Talbot Co. Photo: Jan Plotczyk