Last month, HuffPost Teen shared amazing, inspiring and moving stories from the 25 most powerful and influential young people in the world. These incredible teens and 20-somethings are living proof that young people can and do change the world -- and their stories may inspire you to make an impact of your own.

Selected by Youth Service America (YSA), these young game-changers have all turned their passions for service into large-scale action, and in doing so, they're becoming true global leaders. From building soccer fields for kids in developing countries to saving sea turtles, their actions have made a real difference in their own communities and beyond. Check out their amazing stories in the slideshow below.

Do you know an incredible young person who's changing the world? Tell us in the comments below or tweet @HuffPostTeen!

Loading Slideshow...
  • Olivia Bouler

    One inspiring environmental activist uses her creative side to spread messages about saving our planet. Twelve-year-old <a href=" " target="_hplink">Olivia Bouler</a> has raised over $200,000 for environmental causes through her children's book, <em>Olivia's Birds: Saving the Gulf</em>, as well as her displayed artwork at the Ned Smith Center for Nature and Art.

  • Grace Li

    <a href="" target="_hplink">Grace Li</a>, Co-founder and CEO of We Care Act, dedicates much of her time to helping youth around the world recover from disasters. From collecting books for earthquake victims in China to running collection drives after Hurricane Ike, Grace has helped over 14,000 kids recover from natural disasters.

  • Jeremiah Kimbugwe

    Twenty four-year-old <a href="" target="_hplink">Jeremiah Kimbugwe</a> is using his degree in social work to bring about healthy changes in the country of Uganda. Working with the organization Sovhen Uganda, Jeremiah oversees a sanitary napkin-making project as a solution to other dangerous and unsanitary methods that some young women currently use.

  • Kyle Weiss

    As the founder of FUNDaFIELD, <a href="" target="_hplink">Kyle Weiss</a> works to better the lives of children and teens in developing countries. The 19-year-old's organization gives youth a chance to play soccer as a therapeutic method for curing trauma and inspiring positive growth.

  • Cassandra Lin

    Impressive teen <a href="" target="_hplink">Cassandra Lin</a> is the founder of Rhode Island-based Project TGIF: Turn Grease Into Fuel, which converts collected grease into biodiesel so that it can be supplied to families for emergency heating assistance. The 14-year-old sprang into action after reading an article in the local paper that pointed out that many people in community could not afford to heat their homes in the winter.

  • Luis Cruz

    Passionate about creating solutions for people with disabilities, 19-year-old <a href="" target="_hplink">Luis Cruz</a> came up with Eyeboard, a type of eye-controlled software. After meeting a fellow student who was paraplegic, Luis began to research inexpensive ways to implement technology in the lives of disabled people, eventually inventing a $300 prototype.

  • Abdel Alzorgan

    After working with his dad on a farm in Tafila, Jordan, <a href="" target="_hplink">Abdel Alzorgan</a> was inspired to find new and innovative ways to conserve water. Since entering his first INTEL International Science and Engineering Fair in 2006, the 22-year-old has participated in many competitions and organizations to bring awareness and information back to the youth in his home country.

  • Zander Srodes

    Twenty one-year-old environmentalist <a href="" target="_hplink">Zander Srodes</a> has been proactive about sea turtle conservation for over ten years, and founded the Turtle Talks marine science seminar program to spread his passion to youth all over the country. He has written three children's books on the subject, including Turtle Talks Activity Book, which sold over 3,000 copies worldwide and has been translated into six languages.

  • Madelyn McGlynn

    After learning that malaria kills one child every 30 seconds, <a href="" target="_hplink">Madelyn McGlynn</a> and her four sisters went straight to action and started the organization NETwork Against Malaria. Over 21 chapters of NETwork have been started across the country, and an estimated 34,500 lives in Uganda have been saved as a result of the girls raising awareness.

  • Camilo Jimenez

    Twenty two-year-old <a href="" target="_hplink">Camilo Jimenez</a> was inspired to make a difference for his native Latin America, where only 18 percent of daily waste is recycled. His company, ECOPUNTOS, allows people to earn points, which can be used towards prizes, in exchange for recycled material.

  • Daniel Kent

    <a href="" target="_hplink">Daniel Kent</a>, President and Executive Director of Net Literacy, became passionate about teaching Internet skills to others back in middle school, when he was a volunteer at his public library. Daniel's company now donates $1.4 million in services annually, which includes refurbishing computers and teaching digital literacy skills to students and parents.

  • Mohammad Barry

    A 20-year-old activist from South Africa, <a href="" target="_hplink">Mohammad Barry</a> has strived to give a voice to HIV-positive young people in sub-Saharan Africa. He is also working to encourage all young people to join in the fight against AIDS.

  • Marita Cheng

    When 23-year-old <a href="" target="_hplink">Marita Cheng</a> realized how few female students were in the engineering classes at her university, she decided that she had to make a change. So she founded the Robogals Rural and Regional Programme and the Robogals Science Challenge to encourage young girls to take an interest in engineering, robotics and the sciences.

  • Valens Ntamushobora

    Through 300-member cooperatives and a focus on poor rural women and girls, 24-year-old <a href="" target="_hplink">Valens Ntamushobora</a>'s Lusa Program initiative provides access to land and assistance in sustainable low-cost agriculture practices with the goal of providing gainful employment to women and girls in Rwanda.

  • Maren Johnson

    As Student Ambassador for the Global Soap Project, 17-year-old <a href="" target="_hplink">Maren Johnson</a> collects lightly used bars of soap from hotels and sends them to areas in need throughout the world.

  • Brittany Bergquist

    <a href="" target="_hplink">Brittany Berqquist</a> first started making a difference when she assisted one soldier with his cell phone bill. Now, 21-year-old's act of care has developed into a 501c3 non-profit organization, Cell Phones for Soldiers, that is designed to assist service members from every branch of the military.

  • Jonny Cohen

    Through his project GreenShields, 16-year-old <a href="" target="_hplink">Jonny Cohen</a> has been able to use science to help the environment. Because of GreenShields, he hopes schools can save gas and pollute a little less with more green-friendly buses.

  • DeAndre Roberts

    Twenty-year-old <a href="" target="_hplink">DeAndre Roberts</a> works as a gay rights activist in California. He inspired to help youth work together for progressive change.

  • Christopher Yao

    Firmly following the belief that youth can make a difference, 15-year-old <a href="" target="_hplink">Christopher Yao</a> founded Kids Change the World, an organization that empowers and enables young people to start their own fundraisers and charitable programs.

  • Kendall Ciesmier

    Born with a rare liver disease, 19-year-old <a href="" target="_hplink">Kendall Ciesemier</a> knew the meaning of the word 'struggle' from an early age, and now she helps others who are struggling through her organization Kids Caring 4 Kids.

  • Ghalib Khalil

    After extreme floods ravaged his home country, 17-year-old <a href="" target="_hplink">Ghalib Khalil</a> decided to take action by creating the Rescue Pakistan Youth Foundation. His efforts are helping to slowly rebuild families and communities that have been devastated by the flooding.

  • Anoka Primrose Abeyrathne

    Twenty one-year-old eco-entrepreneur <a href="" target="_hplink">Anoka Primrose Abeyrathne</a> is dedicated to conserving the Mangrove habitats in her home country of Sri Lanka bringing about sustainable livelihood development for the community of Bolgoda Lake.

  • Dylan Mahalingam

    Sixteen-year-old activist and entrepreneur<a href="" target="_hplink">Dylan Mahalingham</a> founded Lil'MDGs, a group that leverages the power of the Internet to educate, inspire and empower youth. He has mobilized children 34 countries to raise $780,000 for tsunami relief and more than $10 million for hurricane relief.

  • Tamer Shaaban

    Blogger, filmmaker and human rights activist Tamer Shaaban created films showing the Egyptian people's frustrations with the Egyptian regime when the 2011 revolution was sparked. His first film received over two million views and was blocked in Egypt, Saudi Arabia, U.A.E., and Jordan.

  • Alec Urbach

    Sixteen-year-old filmmaker and education activist <a href="" target="_hplink">Alec Urbach</a> is using film to revolutionize elementary education in developing nations. He created a cartoon-animated curriculum that isn't language-dependent for illiterate children.