Senate Democrats slammed Republicans on climate change Wednesday, summing up the party's plan to combat the environmental challenge with a ¯\_(ツ)_/¯.

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Sen. Sheldon Whitehouse Sheldon WhitehouseLWCF modernization: Restoring the promise Restaurant owner defends calamari as 'bipartisan' after Democratic convention appearance Warren calls on McConnell to bring Senate back to address Postal Service MORE (D-R.I.) spoke from the Senate floor with a sign that read "#WhatsTheGOPsClimatePlan ¯\_(ツ)_/¯”

Sen. Ed Markey Edward (Ed) John MarkeySchumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Democrats see fundraising spike following Ginsburg death Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy MORE also spoke from the Senate floor with a sign that included a sad-faced shruggie. The Massachusetts Democrat suggested that Republicans didn't have a plan to combat climate change, adding that "shruggie says 'I'm not happy. I'm sad.' "

It's not the first time Democrats have used the internet emoticon to help them sum up their critiques of Republican policies. Earlier this year, Sen. Chris Murphy Christopher (Chris) Scott MurphyDemocratic senator calls for 'more flexible' medical supply chain to counter pandemics The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon GOP chairman to release interim report on Biden probe 'in about a week' MORE (D-Conn.) used the symbol during a speech suggesting that Republicans didn't have a plan if the Supreme Court struck down subsidies under the Affordable Care Act.

Murphy's speech might have been the first time the symbol, which gained popularity online after Kanye West interrupted Taylor Swift’s MTV awards show acceptance speech, was used on the Senate floor.

Whitehouse and Markey spoke on the Senate floor Wednesday, along with Minority Leader Harry Reid Harry Mason ReidDemocrats fear Russia interference could spoil bid to retake Senate Graham signals support for confirming a Supreme Court nominee this year Trump signals he will move to replace Ginsburg 'without delay' MORE (D-Nev.) and Sens. Barbara Boxer Barbara Levy BoxerThe Hill's Morning Report - Presented by Facebook - Biden, Harris launch Trump offensive in first joint appearance Bottom line Polls show big bounce to Biden ahead of Super Tuesday MORE (D-Calif.) and Brian Schatz (D-Hawaii), to pressure their Republican colleagues to turn over a plan to combat climate change.

Whitehouse, a vocal critic of Republicans on the issue, tied their opposition to the Koch brothers.

"There is a thread that links all of this and it is money. The Koch brothers are putting hundreds of millions of dollars into this election," he said, referring to GOP donors Charles and David Koch. "One of their organizations, one, said it was going to spend $889 million in this election and that anybody who crossed them on climate change would be at, and I quote, 'a severe disadvantage.' Nice little campaign you got here."

Reid added that Republicans have a "Koch challenge."

“The closest they came was trying to be funny on the floor when it snowed and brought a snowball into the Senate chamber, said couldn't be climate change, we got some snow today," the Democratic leader said, referring to Sen. James Inhofe James (Jim) Mountain InhofeChamber of Commerce endorses McSally for reelection Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Top admiral: 'No condition' where US should conduct nuclear test 'at this time' MORE (R-Okla.), who threw a snowball on the Senate floor earlier this year.