For the first time, government scientists concluded that hydraulic fracturing, the process of shooting massive quantities of water and chemicals into rock to release natural gas, contaminates drinking water. The study concerns an incident in Pavillion, Wyoming, and culminates three years of research of the local aquifer.

Treasure Islands tells us that tax havens are much larger and much more destructive than most might realize, yet at the same time enjoy much more unofficial and formal support from governments in advanced economies than many of us want to believe.

Today features primary elections in Washington state and Wyoming. The races to watch tonight will be both parties’ primaries for governor in Wyoming, the Senate primary in Washington state, and the primary in Washington’s 3rd Congressional district. Read this preview for more information at the races.

Today is primary day in Washington and Wyoming. Both states’ races include important statewide elections.