While fast-food workers last year went on strike in several cities, this year's rally on Dec. 5 appears to be among one of the largest -- spanning more than 100 U.S. cities. Workers want the federal minimum wage raised to as high as $15 per hour from $7.25, arguing that's not enough to live on and raise a family. Critics counter that doubling the minimum wage would cost jobs, forcing employers to cut back on the number of workers.

Here’s an excerpt from a statement released by Fast Food Forward, a New York-based nonprofit involved in organizing the strikes:

“One year after the first strike hit the $200 billion fast-food industry and months after workers walked out in 60 cities, workers in 100 cities are expected to walk off their jobs Thursday. These strikes are part of a growing fast-food worker movement that started when 200 workers in New York City went on strike last November."

In addition to fast-food workers, clergy, elected officials and community supporters have joined in the protests. New York City alone is estimated to be home to about 57,000 fast-food workers who earn an average of $8.89 per hour, Reuters reports.

It remains to be seen how effective the picketing will be in helping to push up wages in the fast-food industry, but one thing is for certain -- workers' participation in the protests is significantly large -- with several photos appearing on newswires and social media sites such as Twitter (NYSE:TWTR), with the hashtag “#FastFoodStrikes.”

Many of the protests have occurred right in front of major chains including McDonald’s Corp. (NYSE:MCD), Burger King (NYSE:BKW) and Yum Brands Inc.'s (NYSE:YUM) KFC subsidiary.

Fast Food Worker Strike 2 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 3 A customer reads a newspaper inside as fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 4 A customer reads a newspaper inside as fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 5 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 6 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 7 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 8 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 9 Fast-food workers attend a protest outside a McDonald's in New York City. Photo: Reuters Fast Food Worker Strike 10 New York Police Department officers stand guard at the entrance of a McDonald's restaurant while fast-food workers rally for higher wages. Photo: Reuters