State of polar bear populations

Posted to Maps  |  Tags: ,  |  Nathan Yau

There are an estimated 20,000 to 25,000 polar bears in the world, and the population is expected to decline by 30 percent over the next three generations. Periscopic, in collaboration with the Polar Bear Specialist Group, highlighted the changing populations in this interactive.

The data can be viewed by subpopulation, by nation, and by ecoregions. In the first two views, you can click on geographic regions to see more details about the area, which includes a text overview and time series for more troubling numbers on polar bears killed by humans and pollution. Finally, when you click on a time series or the pollutant levels, you can see the data at a higher granularity.

So there are a few ways to examine the data and different angles to explore. You'll want spend some time with this one.

1 Comment

Favorites

Real Chart Rules to Follow

There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.

Where Bars Outnumber Grocery Stores

A closer look at the age old question of where there are more bars than grocery stores, and vice versa.

Where People Run in Major Cities

There are many exercise apps that allow you to keep track of your running, riding, and other activities. Record speed, …

The Best Data Visualization Projects of 2011

I almost didn’t make a best-of list this year, but as I clicked through the year’s post, it was hard …