The City of Markham’s will hold their 5th Annual Earth Hour Saturday, March 24 at the Cornell Community Centre & Library. There will be indoor activities from 5:00 to 8:30 p.m. including the Sustainability Fair, interactive activities for children, hands-on eco art and entertainment for the whole family to enjoy. Be sure to check out  STEM Kids Rock , who will be on-site to inspire kids to fall in love with science!

The event moves outside starting at 8:30 p.m. for “lights out” with a lantern walk, followed by refreshments.

Last year, Alectra Utilities reported that during Earth Hour 2017, the City of Markham had a 4.1 per cent reduction in electricity consumption, resulting in a total savings of 10.76 megawatts (MW) or the equivalent of powering approximately 324 average residential homes for a 24-hour period.

This year, the City of Markham will participate in Earth Hour by dimming the lights at several of our facilities. Residents and businesses are encouraged to follow suit between 8:30 and 9:30 p.m. for this global event.

Earth Hour was started by the World Wide Fund for Nature (WWF) as a symbolic event in 2007. Since then, it has grown to become the largest global grassroots movement for the environment, and continues to inspire individuals, communities, businesses and organizations in over 180 countries to take action on climate change.

To learn more about how the City is celebrating, visit