A city installed 30 new streetlights in high-crime neighborhoods to improve nighttime safety

A high school added a new course on environmental science to its curriculumA tech company partnered with a local school to provide coding classes for students

A community garden started a composting program that reduces its waste by 40%A coffee shop sourced its beans from a fair-trade farm to support ethical farming practicesA university hosted a conference on climate change that brought together 500 experts from around the world

A taxi company offered discounts to senior citizens and students to increase ridershipA bakery used locally sourced ingredients to create a new line of pastries that highlight regional flavors

A city started a program to plant flowers in public spaces to improve the appearance of downtown

A scientist discovered a new way to convert plastic waste into fuelThe city council approved the construction of a new water treatment plant

A major clothing brand launched a campaign to promote body positivityScientists developed a faster and more accurate test for a virus

The school district provided training for teachers on mental health supportResearchers found that spending time in parks reduces stress in city residents

(责任编辑：叶蕴仪)