Attention men: The next time someone gives you crap about your beard, just look them straight in the eye and say you're doing it for Mother Earth. 

In support of World Environment Day (June 5), Budweiser has launched a new campaign titled "Grow One. Save A Million" that encourages men to conserve water by allowing their facial hair to go wild. According to the company, the average male uses a staggering five gallons of water while shaving. The hope is that through humor and awareness, guys will lay off the blades and help save 1 million gallons of water — much to the chagrin of girlfriends and wives everywhere. 

And what man best personifies the bearded icon the brand was looking for? None other than Nick Offerman from NBC's hit series "Parks and Recreation" — known just as well for his hairy face as he is for his character's hilarious swagger. 

"The only thing manlier than growing a big, burly beard is ripping a big, burly beard off of a charging grizzly with your bare hands,” Offerman says in a release. “That, and saving the planet. Since no grizzly has had the balls to charge me since I went through puberty, I’ve decided to focus on saving the planet by joining with Budweiser to promote the ‘Grow One. Save a Million’ campaign.

"Men, if you want to look manly and feel good about conserving water, join me and take the pledge on Budweiser’s Facebook page," he added. "And grizzlies, charge me. Just do it. I’m waiting, you babies.”

Last year, more than 1,200 employees from Budweiser brewer Anheuser-Busch skipped shaving for one week prior to World Environment Day, helping to save about 42,000 gallons of water. This year, they're hoping to double that effort — while once again donating $150,000 to River Network to help support the organization's watershed conservation projects in each of the company's 12 U.S. brewery cities.

"Water is a key ingredient in the brewing of Budweiser and all our beers, which is why water conservation is a priority both inside and outside our breweries," said Kathy Casso, vice president of Corporate Social Responsibility at Anheuser-Busch. "In the past three years alone, our 12 U.S. breweries have reduced water use by 34 percent. Additionally, our employees and their families take action by volunteering to participate in local river cleanup projects in communities across the country."

What do you think? Will you be dropping the razor and embracing the fuzz — or, like me, is this just business as usual? $10 says that Gillette is planning a "Drink less beer. Save Water" campaign for next year in retaliation.

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Nick Offerman's green beard crusade
"Parks and Recreation" star promotes new Budweiser campaign encouraging men to conserve water by growing their facial hair.