March
2026 / 03 / 28
International Day
Earth Hour
Earth Hour is a global environmental public welfare activity initiated by the World Wide Fund for Nature (WWF). It aims to inspire people's sense of responsibility for protecting the Earth and encourage reflection on environmental issues such as climate change by cing on individuals, communities, businesses, and governments to turn off non-essential lights and power-consuming products for one hour from 8:30 PM to 9:30 PM local time on the last Saturday of March each year. The event began in Sydney, Australia, in 2007 and has since grown into one of the world's largest grassroots environmental movements, covering over 190 countries and regions. Its core significance lies in transcending this one-hour symbolic action to advocate for the public to adopt sustainable lifestyles in daily life and collectively contribute to the sustainable development of the planet. Common celebration methods include: individuals and families turning off lights, communities organizing unplugged concerts or stargazing events, landmark buildings dimming their lights, and online social media interactions.
Businesses can leverage this opportunity for public relations communication to showcase their social responsibility and environmental commitment. Specific activities may include: turning off non-essential office lighting and outdoor billboards during the event; launching online chenges or topic interactions related to environmental themes to encourage participation from employees and the public; releasing the company's long-term sustainability report or environmental goals; collaborating with environmental organizations to host public welfare events or make donations; and using this occasion to promote their own green products or energy-saving technologies, deeply integrating brand values with environmental protection principles.
Businesses can leverage this opportunity for public relations communication to showcase their social responsibility and environmental commitment. Specific activities may include: turning off non-essential office lighting and outdoor billboards during the event; launching online chenges or topic interactions related to environmental themes to encourage participation from employees and the public; releasing the company's long-term sustainability report or environmental goals; collaborating with environmental organizations to host public welfare events or make donations; and using this occasion to promote their own green products or energy-saving technologies, deeply integrating brand values with environmental protection principles.
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