Wenn es auf der Erde finster wird
© Reuters/ALLISON JOYCEThe Brooklyn Bridge is seen with its lights turned off in participation with Earth Hour in New York March 31, 2012. Lights started going off around the world on Saturday in a show of support for renewable energy. REUTERS/Allison Joyce (UNITED STATES - Tags: ENVIRONMENT SOCIETY CITYSPACE)
Energie sparen: Bei der weltgrößten Klimaschutz-Aktion werden am 23. März für eine Stunde die Lichter der berühmtesten Sehenswürdigkeiten ausgehen.
© Reuters/ALLISON JOYCE
The Brooklyn Bridge is seen with its lights turned
© APA/MARTA PEREZ
SPAIN EARTH HOUR 2012
© Reuters/ANDREW BURTON
Combination photo shows Empire State Building with
© Reuters/AMR ABDALLAH DALSH
A combination of pictures shows the great Giza pyr
© APA/SVEN HOPPE
GERMANY EARTH HOUR 2012
© Reuters/ALI JAREKJI
Volunteers hold candles and a globe during Earth H
© Reuters/HO
A 32-metre balloon in the shape of a light bulb fl
© Reuters/TIM WIMBORNE
Combo photo shows power lines crossing in front of
© APA/TATYANA ZENKOVICH
BELARUS EARTH HOUR 2012
© Reuters/Eliseo Fernandez
Chilean volunteers hold up candles during Earth Ho
© APA/KOEN VAN WEEL
THE NETHERLANDS EARTH HOUR
© Reuters/DWI OBLO
A combination picture shows Prambanan temple befor
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