Celebrate the 40th Anniversary of Earth Day (April 22, 2010) at these local events (Metro Phoenix and Prescott):

1) Earth Day at Encanto Park; Thursday, April 22nd from 9am to 1pm. Participate in educational clinics on tree selection, planning and care. Following the clinics, 50 trees will be planted. Admission is free. Encanto Park, 2605 N. 15th Avenue, Phoenix. For more info, call (602) 261-8991.

2) City of Phoenix Earth Day celebration; Thursday, April 22nd from 11am to 1:30pm. Learn about recycling and sustainability. Free admission. Cesar Chavez Plaza, 201 W. Washington Street (downtown Phoenix). For more information, visit www.earthdayphoenix.org.

3) SRPMIC Earth Day 2010; Saturday, April 24th from 9am to 2pm. Activities will include community clean-up, native tree planting and an environmental fair. Lehi Community Center, 1231 E. Oak Street, Mesa. For more info, call (480) 362-7500.

4) Health & Wellness Picnic; Saturday, April 24th from 10am to 3pm. Tempe City Center, 1460 E. Southern, Tempe. For more info, e-mail info@azholisticchamber.com

5) Earth Day Everyday Festival; Sunday, April 25th from 11am to 9pm, Mile High Middle School Athletic Field, 300 S. Granite, Prescott AZ 86303. Learn about green technology and programs. Fun, food and entertainment. For more info, call Kate Tittle at (928) 925-2001.