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Earth Hour

Earth Hour

What is Earth Hour?

Earth Hour, is a world-wide celebration where millions of people around the world turn off their lights for one hour to tackle the dual challenges facing the planet – climate change and loss of nature. Earth Hour started off as a lights-off event in Sydney, Australia, in 2007. It has grown to engage 192 countries and territories to raise awareness for energy consumption and effects on the environment. By turning off non-essential electricity, participants join a global movement to raise awareness and take action for a healthy planet. For more information, please visit Earth Hour Reports.

How to take part?

During Earth Hour, TDSB schools and offices are asked to go as electricity-free as possible for ONE HOUR on March 21st at 2pm. Wherever possible, our schools and offices will turn off all interior lighting (except necessary emergency lights), any non-essential electronics and powerbars.

In 2011, the TDSB experienced its highest reduction in energy usage (29.9%.) at schools and offices. This year energy reduction will be tracked at each TDSB school, with the top 25 Elementary and Secondary schools getting a shout out! Let’s make this year our biggest energy reduction ever!

Educators and Students:

Earth Hour presents a great opportunity to raise awareness about environmental issues and run campaigns focused on energy conservation and climate change. Its sharp focus allows you to undertake as little or as much awareness and action building as your school is ready for. The TDSB Earth Hour poster/checklist can serve as an organizing tool for classroom or school-wide endeavours:

Community:

This Earth Hour on March 22nd, millions around the world will be turning off the lights and speaking up why nature matters. Families and community members can participate from 8:30 to 9:30 pm. Consider registering your actions or event at the Global Earth Hour website.

Connect with us

Share your #TDSBEarthHour actions with @EcoSchoolsTDSB. Tell us if your school is already going beyond Earth Hour itself! Do students take an active role in organizing the campaign? Inspire and challenge other schools across the city.

2025 Results!

Please raise a glass to Indian Road Crescent PS and Dr. Norman Bethune CI (third year running!) for reducing their electricity use the most!

Our TDSB Energy and Climate Action team have the tools to track energy use at each of our schools. They compare the Earth Hour usage to one hour earlier, and come up with the percent saved. Overall, Elementary schools are pulling off much better results than Secondary - let's see if we can turn that around for next year! We hope all schools continue throughout the year to reduce energy consumption whenever possible.

March 31: Our apologies, the data was corrupted last week, so this is the revised list of actual results.

  Elementary % Saved Secondary % Saved
1 INDIAN ROAD CRESCENT JR PS 71.6% DR. NORMAN BETHUNE CI 25.0%
2 WEST GLEN JS 54.5% FOREST HILL CI 21.6%
3 KAREN KAIN SCHOOL OF THE ARTS 43.0% WOBURN CI 13.1%
4 CHARLOTTETOWN JR PS 41.6% THISTLETOWN CI 11.6%
5 MILLWOOD JS 39.9% FRANK OKE SS 10.3%
6 LORD LANSDOWNE PS 38.3% BURNHAMTHORPE CI 10.0%
7 HARRISON PS 37.3% GEORGE S HENRY ACADEMY 9.5%
8 NORMAN INGRAM PS 37.2% JOHN POLANYI CI / BATHURST HEIGHTS LC 8.8%
9 FAYWOOD ARTS CS 36.1% LAKESHORE CI 8.4%
10 ANSON S TAYLOR JR PS 36.0% MARC GARNEAU CI 7.5%
11 VALLEYFIELD JS 35.9% NORTH ALBION CI 7.0%
12 BEVERLY GLEN JR. PS 35.5% SIR OLIVER MOWAT CI 6.6%
13 SENECA HILL PS 35.2% HEYDON PARK SS 5.9%
14 ELMLEA JUNIOR SCHOOL 34.5% MARTINGROVE CI 5.8%
15 SECORD ES 33.9% JARVIS CI 5.7%
16 MORRISH PS 33.7% RICHVIEW CI 5.4%
17 EATONVILLE JS 30.3% GEORGES VANIER SS and WOODBINE JHS 4.9%
18 HUMBERCREST PS 30.2% WESTVIEW CENTENNIAL SS 4.6%
19 HIGHLAND JHS 29.6% WEST HILL CI 4.5%
20 LANOR JMS 28.0% A.Y. JACKSON SECONDARY SCHOOL 4.3%
21 WILLIAM G DAVIS JR PS 26.8% YORK MILLS CI 4.0%
22 FOREST MANOR PS 26.7% YORKDALE SS 3.8%
23 CHURCHILL PS 26.7% SIR WILFRID LAURIER CI 3.8%
24 BLANTYRE PS 26.1% SILVERTHORN CI 3.4%
25 PERCY WILLIAMS JR PS 25.7% NORTHVIEW HEIGHTS SS 2.9%