Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Weekend snow to spread from Midwest to big Northeast cities. Get the forecast. Chevron right
The ongoing Arctic blast is likely to be the coldest one so far this winter. See the forecast. Chevron right

Columbus, OH

24°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Columbus

Ohio

24°
No results found.
Try searching for a city, zip code or point of interest.
settings
Columbus, OH Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

AccuWeather Early Hurricane Center Top Stories Trending Today Astronomy Heat Climate Health Recreation In Memoriam Case Studies Blogs & Webinars
2
Winter Storm Warning

News / AccuWeather Ready

Earth Hour: What is it and why is it important?

By Staff, AccuWeather

Published May 18, 2020 2:04 PM EST

Copied

Landmarks went dark as some of the world's most famous buildings mark the 11th annual Earth Hour to draw attention to climate change. The initiative began in Australia in 2007 as a gesture by the World Wildlife Fund against man-made carbon dioxide emissions which have been linked to global warming. This year, 7,000 cities across more than 180 countries switched off electric lights for one hour at 8:30 p.m. local time.

For one hour later this month, lights will go out all around the world. At that time, the world will be celebrating the 12th annual global Earth Hour.

earth lights

Photo by WikiImages

WikiImages

What is Earth Hour? 

Led by the World Wide Fund for Nature, Earth Hour is an annual coordinated effort to get homes, communities, and businesses around the world to turn off non-essential electric lights for one hour. The 2020 Earth Hour will be held on Saturday, March 28 from 8:30 pm to 9:30 pm local time. The goal of Earth Hour is to raise awareness about energy consumption and its impact on the environment. In 2007, the Australian branch of the World Wide Fund for Nature held the first Earth Hour on March 31 at 7:30 pm as a country-wide effort to increase environmental consciousness around Australia. Earth House was a tremendous success, so the World Wide Fund for Nature followed up on it by organizing the first global Earth Hour on March 29, 2008, from 8:00 pm to 9:00 pm.

earth

Photo by Gerd Altmann

Gerd Altmann

Who participates in Earth Hour? 

Since the first global Earth Hour in 2008, more than 7,000 localities, including 400 major cities, across nearly 190 countries and territories have come to participate in the grassroots movement each year. Major landmarks, such as the Eiffel Tower, Sydney Opera House, and the Empire State Building, and even many websites—including Google—have joined in Earth Hour. There are also numerous organizations and agencies that now support and promote Earth Hour, including UNESCO, the UN Environment Program, and the International Trade Union Confederation, as well as corporations such as IKEA, HSBC, Hilton Worldwide, and FIFA.

polluted earth

Photo by Marcinjozwiak 

marcinjozwiak

What is the impact of Earth Hour? 

According to a study by Zogby International, approximately 36 million Americans, or roughly 16 percent of the population, participate in Earth Hour. Across the globe, Earth Hour includes over 120 million people and results in a one-hour 4 percent reduction of energy consumption. The most important effects, however, are not in saving energy but in building awareness. The same study by Zogby found that people reported a four-percentage point increase in their level of concern about environmental problems immediately after Earth Hour. 

lights on earth

Photo by Skeeze 

skeeze

Why is Earth Hour important? 

As the World Wide Fund for Nature explains, Earth Houris not a carbon reduction exercise but a symbolic action. The objective is to encourage people, governments, and businesses to recognize their ecological footprint and start thinking about how to take responsibility for managing it in a more sustainable way. By participating in Earth Hour, people are making a commitment to fight  climate change and build a better future for our planet. Earth Hour helps to create a sense of solidarity between people across national borders by reminding us all that while stopping the progress of climate change is a global problem, it does have some local solutions—from turning off the lights when you leave a room, carpooling to work, or simply staying in tune with your local forecast to understand how climate change is affecting your area. In addition, the success of Earth Hour has led directly to a number of other crowd-funded environmental initiatives, such as the planting of half a million trees in Uganda to combat deforestation and passing of legislation to protect 3.4 million hectares of sea off the coast of Argentina. It has also renewed global interest in making Earth Day another centerpiece of collective action to combat climate change.

Earth Hour helps remind millions of people around the world of the importance of making environmentally conscious decisions in their daily lives, and it demonstrates how those millions of decisions can add up together to major change. It serves to encourage people to seek out the facts about climate change and its long-term catastrophic impact on our planet and our lives.

earth hour candle

Photo by Ooceey 

Ooceey

As we rapidly consume our planet’s finite amount of fossil fuels, we are also devastating our planet’s environment with pollution, global warming, and climate change. With such a major challenge before us, it can seem daunting and perhaps overwhelming. It is all too easy to lose sight of the fact that our everyday actions can make a difference—especially when we all work together. To see the breathtaking images of Earth Hour 2019, click here.

Related:

The unhealthy effects of acid rain
How recycling impacts the weather
Winter smog: Its causes and effects
Why air pollution is worse in winter
How to reduce plastic waste this winter
How to Dispose of Light Bulbs in an Eco-Friendly Way
Report a Typo
Comments that don't add to the conversation may be automatically or manually removed by Facebook or AccuWeather. Profanity, personal attacks, and spam will not be tolerated.
Comments
Hide Comments

Weather News

video

Coast Guard rescues four during historic flooding in Washington

Dec. 12, 2025
video

Looking ahead to next week

Dec. 12, 2025
video

Clippers bring snow from the Midwest to the Northeast

Dec. 11, 2025
Show more Show less Chevron down

Topics

AccuWeather Early

Hurricane Center

Top Stories

Trending Today

Astronomy

Heat

Climate

Health

Recreation

In Memoriam

Case Studies

Blogs & Webinars

Top Stories

Winter Weather

Weekend snow to make roads slippery from Midwest to Northeast

2 hours ago

Weather News

Historic flooding grips Washington, putting entire towns underwater

1 day ago

Winter Weather

Break from the deep freeze: Central and Eastern U.S. to warm next week

4 hours ago

Weather Forecasts

Northwest US flooding storms take a break, but Pineapple Express looms

3 hours ago

Astronomy

Geminid meteor shower peak to dazzle this weekend

1 day ago

More Stories

Featured Stories

Recreation

Death Valley's ancient lake has returned after record rainfall

2 days ago

Recreation

Hiker rescued after getting trapped in Arches National Park

1 day ago

Climate

Underwater ‘storms’ are eating away at the Doomsday Glacier

3 days ago

Astronomy

Black hole’s feeding frenzy triggers longest cosmic explosion on recor...

3 days ago

Winter Weather

What’s the best direction for your house to face?

3 days ago

AccuWeather AccuWeather Ready Earth Hour: What is it and why is it important?
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...