When it comes to going green, some universities are taking on the world.

In its annual report, UI GreenMetric, a worldwide university ranking system, listed 215 of the world’s most sustainable and eco-friendly campuses of 2012. Schools were ranked on areas of setting and infrastructure, energy and climate change, waste, water, transportation and education.

#4: Northeastern University:

COUNTRY: United States
SCORE: 7,264.07
GREEN THUMBS UP: Given one of the highest grades for overall green achievement (A-) by the Green Report Card, this Boston college’s dining services include hormone and antibiotic-free food products and the campus has multiple sustainability committees.