Graph of the Day: Distribution of Radioactive Contamination at the Fukushima Daiichi nuclear plant, May 2011

This figure shows the percentage of the land area of the lower 48 states where a much greater than normal portion of total annual precipitation has come from extreme single-day precipitation events. The bars represent individual years, while the line...

Most are rural, many are tiny, and a few are huge and urban. The median household income for these 50 counties also varies widely. By Kali Geldis, MainStreet19 April 2012 Poverty on the rise The number of Americans living in...

By German Lopez30 January 2016 (Vox) – Humanity has conquered the world. It's hard to appreciate what that means, but the video above, by WorldPopulationHistory.org, shows just how incredible the growth and expansion of humanity has been over the past...