mother and daughter in forest

2024 Earth Day Activities in
NMWDA Member Jurisdictions

Earth Day is an annual event celebrated on April 22nd to demonstrate support for environmental protection. Municipalities across our Member Jurisdictions are hosting a variety of Earth Day activities. The below list is a compilation of the Earth Day activities taking place throughout the month of April that are listed on municipality websites. These activities range from community clean-ups and workshops to sales of rain barrels and even some festivals! There are also hazardous household waste collection and shredding events. This list is not exhaustive, nor does the Authority endorse any activity on the list. Some events require registration ahead of the event, which is noted in the descriptions.

Anne Arundel County

Celebrate Earth Day at Odenton Library
Saturday, April 20 starting at 10am
1325 Annapolis Rd, Odenton, MD 21113

Community Clean Up
Saturday, April 20 from 10am to 12pm
Glen Burnie Town Center – 121 Crain Highway North, Glen Burnie, MD

Free parking in the Glen Curnie Garage at 7480 B&A Blvd

Join Councilwoman Pickard for an Earth Day Community Clean Up. Trash bags and plastic gloves will be provided, but feel free to bring your own reusable gardening gloves. If you plan to bring a group or have additional questions, please email

Friends of Quiet Waters Park Earth Day Event
Sunday, April 21 from 10am to 2pm
600 Quiet Waters Park Rd, Annapolis, MD 21403

Activities include speakers, an invasive species pull, compost demonstration, trash clean up, and the Classy Clutter Sale. Email Ranger Liz with questions:

Baltimore City

Earth Day Event: Pop-up & Vermicomposting Workshop
Monday, April 22 from 4:30pm to 7pm
The Urban Oasis at 2131 N. Dukeland St. 21216

Baltimore GROW Center will be hosting a Vermicomposting Workshop. Vermicomposting is a composting process that relies on earthworks and microorganisms. If you would like to attend the workshop, please sign up on the EventBrite page. For other April GROW Center events, go to the Baltimore GROW Center website.

Baltimore County

Baltimore County Rain Barrel and Composter On-Line Sale

Baltimore County is hosting online pre-order sale for compost bins and rain barrels to enable residents to celebrate Earth Day (April 22) through the sustainable practices of home composting and rainwater reuse.

Compost bins are available for $55 each and rain barrels are available for $65 each. Prices include tax. This sale is not limited to residents of Baltimore County.

Products can be ordered at Pre-orders are open until Friday, April 12.

All orders must be picked up on Saturday, April 20, from 9 a.m. to 2 p.m. at the Community College of Baltimore County (CCBC) -Essex Campus, 7201 Rossville Boulevard, Lot 7.
Please bring receipt of purchase.

Compost bins and rain barrels are shipped in one piece and will fit in most cars. Please plan accordingly for the products you purchase. Distribution will occur rain or shine. All orders are taken online only. There will be no purchases available at the distribution location.

Carroll County

Now through April 17, 2024
Carroll County Rain Barrel and Composter On-Line Sale is OPEN!

Carroll County residents can place orders online at  Rain barrels and compost bins that you order must be picked up on April 27, 2024, from 8 a.m. to 1 p.m. at the Carroll County Office Building, 225 N. Center Street, Westminster, Maryland.  Items will not be available for pick up after this date. The items cannot be purchased during the pickup event.

Carroll County Household Hazardous Waste and Shred Spring event
Saturday, April 20, 2024 8am-12pm
Carroll County Vehicle Maintenance Facility
1250 Old Meadow Branch Road, Westminster, MD (off Md. Rte. 97, north of Westminster, go past Meadow Branch Road to Old Meadow Branch Road).

Carroll County residents can drop off dangerous household items listed below from 8 a.m. until 12 noon and shred sensitive documents from 8 a.m. until noon, or until the truck is full, whichever comes first.

Frederick County

Elementary Explorers Grades K-5: Recycling
Tuesday, April 16 from 4:30-5:30pm
Frederick County Public Library, Brunswick Branch
915 N Maple Ave, Brunswick, MD 21716

This program will focus on recycling, why we recycle, where it goes, and how we can make other choices through the other “Rs” to help make sustainable waste programs in our community.
Click here for more information.

Plastics 101 Presentation
Thursday, April 18th, 1:30-3:00 PM
Burr Artz Public Library (Downtown Frederick Branch)
110 E Patrick St, Frederick, MD 21701

This program will explore plastics in our everyday lives, look at how they are made, how we dispose of them, and where we can make better choices around plastics. Click here for more information.

Middletown Greenfest
Saturday, April 20th from 10 AM-2:00 PM
Memorial Park Middletown
300 S Church St, Middletown, MD 21769

Join us as we celebrate Earth Day during the annual Green Fest.
We’ll talk about recycling, play games, and answer questions!

Harford County

Earth Day Celebration
Saturday, April 20th from 10:00 a.m. to 2:00 p.m.
Poplar Grove Park
3519 Conowingo Road, Street, MD 21154

Come join us for a family-friendly Earth Day Celebration.
For More Information: 410-638-3417

Howard County

Howard County Greenfest
Saturday, April 13, 10am-3pm
Howard Community College, SET Building
4950, Campus Dr, Columbia, MD 21044

GreenFest is Howard County’s largest celebration of Earth Day. The event aims to connect residents with the resources that local businesses, non-profits and government provide to help anyone be a good steward to the environment. There will be a native plant sale, document shredding services, rain barrel and compost bin giveaways, and more! To learn more, click here.

20-Minute Cleanup
Anytime, Anywhere Monday, April 22

Howard County Executive Calvin Ball is also encouraging individuals and businesses to take 20 minutes this Earth Day to step outside to pick up litter around their neighborhood, school or office complex as part of the County’s 15th annual 20 Minute Cleanup initiative.

Montgomery County

Montgomery County GreenFest
Saturday, April 27, 2024 from 11:00am to 4:00pm
BlackRock Center for the Arts
12901 Town Commons Drive, Germantown, MD 20874.
Click here for more details: