United Nations Photo

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Greta Thunberg (left), 16-year-old climate activist from Sweden, joins young climate activists in a FridaysForFuture protest in front of the UN Headquarters.

The United Nations commemorates Earth Hour by turning off the lights at UN Headquarters and other buildings around the world. Earth Hour is a global initiative commemorated annually on the last Saturday of March to focus attention on people-driven solutions to protect the planet and build a sustainable future.

A view of a dark Secretariat Building and the New York City skyline from across the East River.

Secretary-General António Guterres observes the haze due to smoke from Canadian wildfires from his office at UN Headquarters.

Unique ID UN7ALB50463

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Headline Energy - Sources of Power: Geothermal Energy

Caption Description A view of the volcanic mountain Miravalles in Costa Rica. The Institute Costarricense de Electricidad is constructing a geo-thermal plant at La Fortuna, near Miravalles, to harness geothermal energy to produce electricity.

Unique Identifier UN7771610

NICA ID 72815

Production Date 01/01/1981 4:00:31 PM

Country Costa Rica

Credit UN Photo/Milton Grant

File size 1.78 MB