Over the past 50 years, the 39 remaining glaciers in Glacier National Park area have shrunk by an average of 39% — and as much as 85% , according to a study released by the U.S. Geological Survey. The map below shows how six of the park's iconic ice masses changed between 1966 and 2015.

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Data: Northern Rocky Mountain Science Center; Map: Lazaro Gamio / Axios

Why it matters: The park says there won't be any active glaciers in 15 years if the current trend continues. Melting of the 7000-year-old glaciers could affect run-off into rivers and streams and, in turn, wildlife, as well as tourism.

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Ilhan Omar wins Minnesota primary

Photo: Stephen Maturen/Getty Images

Rep. Ilhan Omar (D-Minn.) won the Democratic primary against lawyer Antone Melton-Meaux on Tuesday evening, AP reports.

Why it matters: The race is one that's played out across the U.S. as progressives continue to sweep party nominations. Omar's win officially means all four progressive members of "The Squad" have won their primary elections.

Updated 2 hours ago - Politics & Policy

25 face felony charges after downtown Chicago hit by looters

Police officers inspect a damaged Best Buy in Chicago that was looted and vandalized. Photo: Scott Olson/Getty Images

Local police officers are seeking felony charges in 25 cases following the arrest of 100 people in the wake of widespread looting and property damage in Chicago on Monday, per the Washington Post.

Driving the news: Law enforcement said the event involving hundreds of people was a coordinated response after an officer shot a suspect Sunday evening, according to CBS Chicago.

Marjorie Taylor Greene wins Georgia's 14th district runoff

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Gun-rights activist Marjorie Taylor Greene defeated physician John Cowan in a runoff election for the Republican nomination in Georgia's deep-red 14th Congressional District on Tuesday, AP reports.

Why it matters: Greene, a vocal QAnon conspiracy theorist who has been condemned by GOP leaders for making multiple offensive remarks about Black people, Jews and Muslims in Facebook videos, is likely to win a seat in the House come November.