Editor's Note:
Today is the 52nd World Earth Day, an annual event held to raise awareness for environmental protection. The first event was held on April 22, 1970, and it now includes a wide range of events coordinated globally, involving 1 billion people in more than 193 countries and regions.
This year, the theme is “Restore Our Earth.” Unlike previous years, it also focuses on how we might actively repair ecosystems.
Heart-shaped trees stand in Hulun Buir, in China’s Inner Mongolia Autonomous Region on June 10, 2018. Photo: VCG 
A forest shapes the sky in the shape of a heart over the center of a small island in Phang Nga Bay, Phuket, Thailand on August 3, 2018. Photo: VCG 
A heart shaped cloud was captured in India on February 19, 2018. Photo: VCG 
The blue, fluorescent sea on show in Zhuhai, China’s Guangdong Province on February 7, 2021, caused by billions of unicellular algae or seagrass. Photo: VCG 
Photo shows a view of Antelope Valley, US on August 2016. Photo: VCG 
Murmurating starlings create the shape of a love heart in the sky at sunset at Ibsley, Hants, UK. Photo: VCG 
Two colorful mandarin ducks stand side by side creating a love heart with their heads and body shapes in Japan. Photo: VCG 
New iron tree leaves look like a heart in Nanjing, China's Jiangsu Province on September 15, 2018. Photo: VCG
