Heffernan, Nanette, <br/><br/>
Earth hour / 
Nanette Heffernan ; illustrated by Bao Luu. 
 - pages cm 
<br/><br/> "From famous monuments to family homes, it's lights out for everyone around the world who participates in Earth Hour--the annual event that honors energy conservation and addresses climate change by encouraging everyone to turn off their lights for one hour on a specific date each March."-- 
<br/><br/><label>ISBN: </label>9781580899420 (reinforced for library use) 
<br/><br/><label>LCCN: </label>2018052240 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy conservation--Juvenile literature.<br/>Climatic changes--Social aspects--Juvenile literature.<br/>Special events--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>TJ163.35  / .H44 2020 
<br/><br/><label>Dewey Class. No.: </label>333.791/6