There's a holiday for practically everything -- even pruning your collection of friends on social media. Sunday is National Unfriend Day, which was started in 2010 by late-night TV host Jimmy Kimmel. Shrinking your social circle has a number of benefits, according to Natalie Pennington, a communications professor at the University of Nevada, Las Vegas, whose dissertation, cited in a university release, focuses on the effects of unfriending and unfollowing through social media.

The holiday encourages users of Facebook and other social networking platforms to examine how close or superficial their online relationships are, and unfriend those who ignore a status update pleading for volunteers to help move.

Former Las Vegas resident and comedian Jimmy Kimmel has created a holiday to help you end superficial relationships online. National Unfriend Day is Nov. 17 and a UNLV professor agrees with Kimmel.

Simply look at the reaction environmental activist Greta Thunberg received after speaking at the Climate Action Summit at the United Nations (or really, when she does anything) and you’ll see how heated things can get when people talk about climate change.

You’ve got plenty of friends on social media until … there’s one less friend. In other words, you’ve been “unfriended.”

National Unfriend Day is Nov. 17 and a UNLV professor says that getting rid of toxic people on social media could help your mental health.

It’s the Girl Scout mantra: Make new friends but keep the old. However, according to UNLV communication studies professor and researcher Natalie Pennington, that may not be the best advice for your mental health.

A unique class at UNLV simulates crime scenes to give students real-world experience. The program is relatively new and aims to build confidence and introduce potential career choices.

More than a decade ago, ABC News pulled off an amazing feat: a 2007 special edition of “20/20” that called attention to the rapid deterioration of the global environment. Reporters were stationed on all seven continents. The news unit even managed to have the lights turned off on the Empire State Building and Times Square to symbolize the dire threat posed by the decline of the earth’s natural support systems. Anchor Diane Sawyer had to use a flashlight – on camera – to maneuver around the set.

Don’t feed the trolls. When you respond and engage with every mean or potentially mean comment about you online, it gives license and opportunity for those behaviors to repeat.

What is sexual harassment? How can employees address it when it is happening? What are the best practices in moving forward?

Studying Christianity provides important insights into how to talk productively about climate change with a variety of audiences. I interviewed Christians from many different denominations and found that they don’t all think alike when it comes to the environment. Some reject environmentalism, some embrace it, and others modify it to fit their beliefs.