Earth Day began in 1970, when 20 million people across the United States—that's one in ten—rallied for increased protection of the environment.
....McCarthy is in a new battle to protect Americans from modern environmental threats such as global climate change, which she called "one of the most significant, if not the most significant, public health issue of our time."
NationalGeographic
1) So a billion honor the "mother" earth with earth day celebrations?
2) How many will honor the "Father" God this Sabbath by honoring His holy 7th day? Probably not a billion... So they worshiped and served the things God created instead of the Creator himself, Romans 1:25 NLT