Cities projected to be under water by 2100

Using Climate Central sea-level rise estimates, The Guardian plots and maps the potential consequences of a 3.2-degree rise in temperature by 2100.

One of the biggest resulting threats to cities around the world is sea-level rise, caused by the expansion of water at higher temperatures and melting ice sheets on the north and south poles.

Scientists at the non-profit organisation Climate Central estimate that 275 million people worldwide live in areas that will eventually be flooded at 3C of global warming.

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Interview with Sesame Street’s Count von Count

Focusing on immigrant characters in television shows, The Guardian US’s data editor Mona Cholabi interviewed Sesame Street’s Count von Count. It only lasts a few minutes but will put a smile on your face.

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Swing states are a relatively new thing

Flipping states

Here’s a fun one from the Guardian. They go over the change in political landscape, leading in with a map that shows states flip around like cards each election cycle.

Relying on the same handful of states to decide the outcome of presidential elections is a fairly recent phenomenon. Just three decades ago, when politics weren’t yet so polarized, all 50 states were up for grabs, swinging between parties from one election to the next.

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Heptathlon rankings with parallel coordinates

Nafissatou Thiam heptahlon

The Guardian covered the rankings for the women’s heptathlon, specifically how Nafissatou Thiam from Belgium pulled off a surprise gold.

The main chart is a variant of a parallel coordinates plot. However, the chart type, which is usually read left to right, is rotated for vertical reading, and instead of straight connecting lines, a path of right angles is used instead. Nice. [Thanks, Matthew]

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Katie Ledecky domination charted

Katie Ledecky dominance

One of the best parts of the Olympics is watching an athlete from your country dominate the competition. Katie Ledecky is one of those athletes this year. Carlo Zapponi and Apple Chan Fardel for the Guardian provide a recap of Ledecky’s world record performance in the 400-meter freestyle. Typically these races are close, but last night Ledecky might as well have been in the pool by herself.

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National drug overdose epidemic

Drug overdose epidemic

Nadja Popovich for the Guardian delves into America’s drug overdose epidemic, starting with an animated map that shows changes from 1999 to 2014.

On initial look, the map looks like your standard county map, but there’s a small wrinkle in the design that makes the geographic spread over time much easier to see. The switch in the top right corner, to toggle between 1999 and 2014, looks like any other. But instead of just a quick flip between 1999 and 2014, the map shifts with annual data, so you can see a smooth transition instead of an abrupt contrast.

Other options, like small multiples or a scroll bar might have worked as an overview, but this route brings focus and eliminates much of the guesswork.

Very nice.

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The Guardian analyzes 70m comments, unearthing online abuse

Guardian comments

Online comments are an odd entity that can get out of hand quickly, and it only takes one or two sour comments to sully an entire thread. To shed some light on the dark side of online commenting, the Guardian commissioned research for their own archive of 70 million comments.

Although the majority of our regular opinion writers are white men, we found that those who experienced the highest levels of abuse and dismissive trolling were not. The 10 regular writers who got the most abuse were eight women (four white and four non-white) and two black men. Two of the women and one of the men were gay. And of the eight women in the “top 10”, one was Muslim and one Jewish.

This is why I closed comments a couple of years ago. I wasn’t get any abuse, but at some point it was like every comment was either really negative, self-promotion, or just straight-up spam. I don’t even want to imagine what comments look like for mainstream sites.

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International impact of China’s economic slowdown

Economic slowdown

China's economic slowdown means a major decline in imports from other countries, which leads to significant effects in these areas. The Guardian takes a look. The vertical axis represents lost export income as a percentage of GDP, the size of the outer red circle represents GDP, and the inner white circle represents exports to China. Dollar units are in billions of dollars. Billions.

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Numbers quiz tests how well you know your country

In their annual survey that tests public perception against reality, Ipsos Mori asked people about their own country's numbers. What's the obesity rate in your country? What percentage of people in your country are immigrants? The Guardian setup the quiz so that you can see how your own perceptions compare against both reality and others' in your country.

Stat quiz

After each question, you get the actual (estimated) value, and you can compare all countries in a second view. Some countries overall are better than others, which you see at the quiz end. Fun.

I'm curious what the distributions look like and what the margin of error is. Are the countries that rank low uninformed, such that survey answers are all over the place, or is the perception universally off, such that answers tightly cluster around the average?

Essentially: uninformed versus misinformed.

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Ascent in the Tour de France

Tour de France wideview

I was flipping through the channels the other night and happened on the Tour de France. It's cycling, in case you're unfamiliar, and it's not the most interesting sport to watch. But when you get a sense of what these athletes are actually doing — how fast they ride, how high they climb — it's a whole lot more impressive.

The Guardian put together a wide view of one of the major climbs, up Alpe d'Huez, to help you see. My legs are tired just thinking about it.

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