The 20th edition of earth hour has begun, with landmarks and businesses switching off lights to draw attention to climate risks. In New Zealand the Sky Tower in Auckland and the national parliament in Wellington were among the first monuments to go dark at 8: 30 p. m. local time as the event moved around the globe. Organizers frame the hour-long blackout as a visible prompt to keep climate action on public and political agendas.
Why this matters now
The event’s scale this year underscores two concurrent messages: public symbolism at global landmarks and growing corporate participation. The World Wide Fund for Nature (WWF), which organizes the campaign, said more than 3 million hours were pledged across 118 countries and territories last year, and it positions the hour as a tool to bring climate action “back into the public spotlight. ” With monuments such as the Sydney Opera House, Germany’s Brandenburg Gate and New York’s Empire State Building slated to go dark, organizers aim for a ceremonial reminder that the climate challenge persists amid other global pressures.
Earth Hour: monuments and corporate commitments
Beyond monuments, this year’s rollout highlights targeted corporate actions, notably in South Korea. Lotte World Tower and affiliated operators will dim or switch off lighting; Lotte Group said roughly 50 tenants and operators at Lotte World Tower and Mall will participate, with Signiel Seoul joining for the first time. Lotte World Tower has participated since 2018, and the mixed-use complex also produces 37, 000 megawatt-hours of renewable energy through solar panels, representing about 15 percent of its total energy consumption.
Hospitality players are making concerted moves: Paradise Hotel Busan plans an “Unplugged Paradise Earth Hour” guest-room lights-off campaign and will stage a performance by EartH, a three-member handpan trio, on the building’s first floor during the hour. Conrad Seoul will turn off exterior and logo lighting and dim shared spaces, while using digital screens to encourage guest engagement. Retail and convenience operations are scaling actions as well: GS Retail will switch off lights at corporate towers and 5, 000 GS25 convenience stores nationwide, with GS25 stores turning off signs for five minutes. The company notes that participating stores have grown fivefold since it first joined the campaign.
Deeper implications and ripple effects
The combination of landmark silhouettes and concentrated corporate measures aims to convert symbolic action into renewed public attention. Organizers argue that symbolic visibility helps reposition climate concerns at the top of political agendas; WWF Germany’s head of climate, Viviane Raddatz, framed the problem starkly: “Currently, the climate crisis is repeatedly pushed into the background in light of the many global challenges. However, it doesn’t disappear. On the contrary, it exacerbates many of these crises. ” She added, “With Earth Hour, we are bringing climate action back into the public spotlight. We are making it visible. People care about this issue and it belongs at the very top of the political agenda. “
Practically, the actions documented this year—large-scale pledges, commercial lighting reductions and renewable production figures at major mixed-use sites—offer measurable touchpoints for advocates and policymakers to evaluate voluntary corporate contributions alongside civic participation. For businesses, the hour can serve as a low-cost, high-visibility test of operational changes and customer engagement strategies tied to environmental messaging.
Regional and global consequences
Regionally, the coordinated participation of Korean conglomerates and hospitality groups signals a maturing private-sector role in symbolic climate diplomacy. Internationally, the synchronized dimming of iconic structures from New Zealand to New York creates moments of shared visibility that campaign organizers hope will translate into sustained attention. The WWF’s tally of pledged hours across more than a hundred territories frames the event as both a global ritual and a barometer of civic mobilization around environmental risk.
Will a single hour of darkness be enough to shift long-term priorities and policy momentum, or is it a recurring reminder that only sustained action will move the needle—how will this year’s earth hour change the conversation going forward?
