Friday 9 September 2016

Data Viz and Climate Change

With the passing of labor day another Summer is on the books and unfortunately the planet’s streak of record-breaking summers every year this century continues. July was the hottest month ever in recorded human history and it’s looks like 2016 will most likely go down as the hottest year on record.

With climate change’s increasingly adverse impact on the environment, data is a playing a key role in understanding and demonstrating the effect of climate change on our world. Climate change data visualization has come a long way from the famous “hockey stick” chart and now use a multitude of high-tech tools and mediums to help to communicate the gravity of this issue.

One work of temperature data visualization that went viral this summer is the following GIF which shows the change in temperature for each month for every year going back to 1850. What makes this display so impactful is that you witness the drastic change in temperature over the course of 166 years in a dozen seconds.

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The rings denoting 1.5 and 2.0 degrees celsius inform the audience the scale of the change and that those two seemingly small numbers would mean grave consequences for the Earth if we ever reached them.

The graphic was created by climate scientist Ed Hawkins of the the National Centre for Atmospheric Science at the University of Reading and roundly praised in media outlets such as Gizmodo and Mashable.



Last month, the New York Times published an eye-opening article about future temperatures in a climate change world. The Times created a series of maps (shown below) displayed how much of the country experiences 100F+ degree days at certain points in time.

It begins with the following map that shows the historical averages. Based on past data, we can see that only a fraction of the country is subject triple digits five days or more per year. It’s worth noting that everywhere east of the Mississippi river is shaded grey.


The following two maps demonstrate our grim and scorching future.


In about 45 years, we can expect that the majority of the country will experience at least five triple digits days per year, with huge swathes of the eastern half of the country now in the orange shade. In 2060, the cities of Phoenix, Las Vegas, and Pecos will all have more triple digits days than the number of days in summer.

And what should we expect for the year 2100.



In the year 2100, in almost every single square mile of America, 100 degree weather will be a common occurrence in the. Many major cities in America can expect at least a month or two months’ worth of triple digit weather.

These visualizations do an excellent job of hitting home the dystopic realities climate change holds for mankind. There’s a data viz lesson to be learned from the simple yet extremely effective aesthetic expressed in these graphics.

Learn more about this topic and others like it at this popular open visualization conference in Santa Clara.