Celebrate Earth Day!

In honor the 40th anniversary of Earth Day, a number of events are set for the week of April 22 on the National Mall in Washington, D.C.

Earth Day is April 22.

Earth Day is April 22.

iStockphoto.com/Karen Keczmerski

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April 22 is the 40th anniversary of Earth Day, and it also is EPA's 40th anniversary year, so the agency planned a number of special events and activities. Start by checking out EPA’s newly redesigned Earth Day website with lots of cool things to do to participate in and celebrate Earth Day. Get involved: commit, take action, share!

To commemorate the 40th anniversary of Earth Day and the EPA, the agency is hosting a celebration event Saturday, April 24, from 10 a.m. to 6 p.m., and Sunday from 10 a.m. to 5 p.m., on the National Mall in Washington, D.C. The event features a variety of interactive, family-friendly exhibits that highlight the work of the EPA, reflect on the past four decades of environmental accomplishments and look forward to the next 40 years of promoting healthier families and cleaner communities. More information is available on the Earth Day website.

If you can’t come to D.C., there are events all over the country. The website lists a number of events. For instance, Shawnee Mission East High School, in Overland Park, Kansas, is hosting Earth Fair 9 from 9 a.m. to 4 p.m., on Saturday, April 7, with information on a variety of environmental topics. More than 1,200 people are expected to attend.

The Boise (Idaho) Parks and Recreation Community Forestry Unit and other volunteers will help plant trees in the city for ReLeaf Boise. A workshop for participants is set for April 22 with planting to occur the morning of April 24.

Cloudland Canyon State Park in Rising Fawn, Georgia, hosts a Spring Wildflower Fest and an Outdoor Adventure Weekend, April 17 and 18, to celebrate Earth Day.

The EPA has a number of other activities, including It’s My Environment, a participatory video project. The deadline is April 15, and you can learn more at the website. The agency’s Pick 5 goes international, and you can join with others around the world to commit to small steps that fit your lifestyle, but are powerful actions for the environment. Visit the Pick 5 page on the EPA website.

In addition to the EPA’s efforts, NASA plans an Earth Day Tweetup on the National Mall in Washington, D.C., with @NASA Twitter followers and NASA scientists at 1 p.m. EDT April 18.

The event is part of a weeklong series of exhibits and activities on the National Mall marking the 40th anniversary of Earth Day. The Tweetup will provide NASA Twitter followers with the opportunity to talk with NASA Earth and climate scientists, producers of NASA's Earth imagery and the staff behind the agency's tweets.

NASA has randomly selected 100 individuals from a pool of online registrants. For more information and to sign up, visit the website. To follow NASA programs on Twitter, visit the Twitter website. To access NASA's social media activities, visit the NASA website.