#30DayMapChallenge: 30 days building maps (3) - Earth is spherical

The #30DayMapChallenge was initiated by Topi Tjukanov on Twitter. This is open to anyone who would like to show a map, whatever the software is. In this blog post, I will show maps made with R. I add constraints to myself for fun. This week, I will create maps that remind map makers that Earth is …

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