Nov 6, 2017

Great Salt Lake shrinking may be due to humans' thirst, not climate change

Water levels at the Great Salt Lake have dropped dramatically in the last 170 years

The Great Salt Lake is half the size it was in 1847. Scientists previously thought the lake was shrinking due to a shifting climate, but a study published last week in Nature Geoscience says it's getting smaller because humans are using water before it can reach the lake, writes Sarah Derouin for Science Magazine.

Why it matters: The Great Salt Lake is an important refuge for migratory birds and rare aquatic species. As the metropolitan area around the Great Salt Lake grows, the impact on water supply will need to be considered. Study author Wayne Wurtsbaugh tells Derouin water inflows into the lake will need to increase by at least 24% for it to stay healthy. Other salt lakes are shrinking, as well, likely for related reasons.

What they did: The researchers re-created 170 years of climate data using climate records, tree ring data, and stream level records. Precipitation changed little over time but the amount of water flowing into the lake declined greatly.

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Trump says he will campaign against Lisa Murkowski after her support for Mattis

Trump with Barr and Meadows outside St. John's Episcopal church in Washington, D.C. on June 1. Photo: Brendan Smialowski/AFP via Getty Images

President Trump tweeted on Thursday that he would endorse "any candidate" with a pulse who runs against Sen. Lisa Murkowski (R-Alaska).

Driving the news: Murkowski said on Thursday that she supported former defense secretary James Mattis' condemnation of Trump over his response to protests in the wake of George Floyd's killing. She described Mattis' statement as "true, honest, necessary and overdue," Politico's Andrew Desiderio reports.

8 hours ago - World

The president vs. the Pentagon

Trump visits Mattis and the Pentagon in 2018. Photo: Brendan Smialowski/AFP via Getty

Over the course of just a few hours, President Trump was rebuffed by the Secretary of Defense over his call for troops in the streets and accused by James Mattis, his former Pentagon chief, of trampling the Constitution for political gain.

Why it matters: Current and former leaders of the U.S. military are drawing a line over Trump's demand for a militarized response to the protests and unrest that have swept the country over the killing of George Floyd by police.

New York Times says Tom Cotton op-ed did not meet standards

Photo: Avalon/Universal Images Group via Getty Images)

A New York Times spokesperson said in a statement Thursday that the paper will be changing its editorial board processes after a Wednesday op-ed by Sen. Tom Cotton (R-Ark.), which called for President Trump to "send in the troops" in order to quell violent protests, failed to meet its standards.

Why it matters: The shift comes after Times employees began a coordinated movement on social media on Wednesday and Thursday that argued that publishing the op-ed put black staff in danger. Cotton wrote that Trump should invoke the Insurrection Act in order to deploy the U.S. military against rioters that have overwhelmed police forces in cities across the country.