1. Xiuhtezcatl Martinez has spoken at the United Nations several times, and he gained popularity after delivering a 2015 speech at the United Nations General Assembly in English, Spanish, and Nahuatl.

1. Xiuhtezcatl Martinez has spoken at the United Nations several times, and he gained popularity after delivering a 2015 speech at the United Nations General Assembly in English, Spanish, and Nahuatl.
Xiuhtezcatl Martinez was born in Colorado, but moved to Mexico in his infancy.
Xiuhtezcatl Martinez lived with his family in Boulder, Colorado through 2019 moving later to Portland, Oregon.
Xiuhtezcatl Martinez has two younger siblings, sister Tonantzin and brother Itzcuauhtli.
That same year, he competed with young musicians from around the world who submitted self-produced music "to inspire the negotiations" at the United Nations Framework Convention on Climate Change with their music; Xiuhtezcatl Martinez's selection "Speak for the Trees" was chosen as the Jury Award Winner.
Xiuhtezcatl Martinez grew up as a vegetarian never having eaten any meat and is a vegan.
Xiuhtezcatl Martinez served as the Youth Director through 2019, transitioning to co-Youth Director alongside Marlow Baines, who assumed the youth leadership role in 2020.
Xiuhtezcatl Martinez was the lead plaintiff in Martinez v Colorado Oil and Gas Conservation Commission case.
In December 2018, Xiuhtezcatl Martinez spoke with Sanders at a town hall event called "Solving the Climate Crisis".
Xiuhtezcatl Martinez was awarded the US Volunteer Service Award by President Barack Obama in 2013.