They traded the truth about God for a lie.
So they worshiped and served the things God created instead of the Creator Himself.... Romans 1:25 NLT
Read their article closely....you will see that the Modern Environmental Movement really is trying to replace God....
"The Case For Making Earth Day a Religious Holiday--So, on this 53rd Earth Day we thought it useful to pose what a real
Earth Day should represent and how it could form a central time for a
new approach to worship. To
begin with, let’s take a look at what established religions get right
and where we might take a cue.
Q: So, what would an earth-reverent belief system look like with Earth Day at its center?
Perhaps the first step might be, um,
unearthing the nature-centered 
origins of our existing religious
holidays. Christmas and Hanukkah fall around the time of the winter solstice; that
Easter and Passover are celebrated in tandem with the arrival of
spring; that Sukkot and Diwali mark harvest and summer’s last warmth,
and Eid follows the path of the moon. These holidays have origins in
gratitude. Gratitude for the sun returning. Gratitude for the harvest
that could avert the starvation winter might bring. Thanks for when it
did avert it. We could conceivably reframe these holidays as days of
thanks for what the natural world gives and reminders that our
responsibility for what remains is an ongoing covenant.
Next, we might look at what religions do to help us form community and mark life’s important benchmarks: birth, maturity, marriage, and death. What if we were to come to celebrate these benchmarks for 
what they are biologically? Birth, that ecstatic co-joining of atoms and molecules resulting in sentience might prompt a ritual of truthfully and factually recounting how inanimate becomes animate. Death, finally, might be recognized for what it is—a returning of atoms
and molecules to the cycle. In the cycle of life, the coming apart is
as miraculous a process as the joining. We still don’t really
know how nothing became something and formed a universe in which random
pulses of energy and matter coalesced into beings writing op eds.
Lastly, we might just need a book. What if a book like that existed 
for the Earth?
What if it were replete
with hymns to this world of the living? What if it contained the stories
of the prophets of natural earth knowledge—Darwin and Carson, Galileo
and Humboldt? What if we used that book not to scold our children into following
commandments but rather to light a path forward that encouraged
discovery and reverence, and gratitude for the relationships that are
this planetary spaceship’s life-support?"
TIME(4/21/23)