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Hollywood celebrities took to social media on Wednesday, April 22 to commemorate the Earth Day. Among those who urged their fans to do something positive for Mother Earth were Leonardo DiCaprio, Ellen DeGeneres and Miley Cyrus.

Leonardo shared on Instagram two photos of earth, one of which accompanied with a quote from Henry David Thoreau which read, "What is the use of a house if you haven't got a tolerable planet to put it on?" The "Titanic" actor captioned it, "#EarthDay2015 #regram RG @sierraclub: Happy Earth Day!"

#EarthDay2015 #regram RG @sierraclub: Happy Earth Day!

A photo posted by Leonardo DiCaprio (@leonardodicaprio) on Apr 22, 2015 at 11:19am PDT

#regram RG @nasa: Happy Earth Day! This composite image of southern Africa and the surrounding oceans was captured by six orbits of the NASA/NOAA Suomi National Polar-orbiting Partnership spacecraft on April 9, 2015, by the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. Tropical Cyclone Joalane can be seen over the Indian Ocean. Celebrate our home planet with us by sharing pictures and video of your favorite place on Earth. Just be sure to include the hashtag NoPlaceLikeHome no matter what social media platform you're posting on. Image Credit: Ocean Biology Processing Group at NASA's Goddard Space Flight Center #nasa #earthday #earthday2015 #space #earth #earthrightnow #science

A photo posted by Leonardo DiCaprio (@leonardodicaprio) on Apr 22, 2015 at 11:43am PDT

Ellen posted on Twitter, "It's #EarthDay! Take a minute to appreciate the world around you. Pet a squirrel. Scatter sunflower seeds around your home. Wash a tree." Miley, meanwhile, shared a photo of her sleeping with her two dogs along with a lengty caption, urging her fans to never stop celebrating Earth Day.

#noplacelikehome @nasa #earthday Earth day should be celebrated like all these other holidays...Not with everyone giving and getting presents but singing songs REJOICING, being with FAMILY, being filled with GRATITUDE for what we've been given by the world! Nature is selfless... She just keeps giving... But she will eventually run out (CA) for our kids and their kids if we don't return her graciousness... Earth day should never stop being celebrated... Because every time we look at the sky.... Walk bare foot in the grass, stick our toes in the ocean or jay lay in a bed of puppies just remember... There is no place like home... Aka planet Earth.... #sotakecareofit #wecantadaptoanotherenvironmentsotakecareofthisone

A photo posted by Miley Cyrus (@mileycyrus) on Apr 22, 2015 at 10:22am PDT

Other celebrities like Pharrell Williams, Gisele Bundchen, Russell Simmons, Kelly Osbourne, Kerry Washington and Mark Ruffalo also showed their support for Earth Day. Pharrell tweeted, "It always seem impossible until it is done - Nelson Mandela. Take climate change action today #EarthDay." Gisele wrote on Instagram, "Today is Earth Day! Let's love, honor and take care of our beautiful Mother Earth. We are One. Our well being depends on how we take care of our planet. This is our home, the only one we have. #EarthDay."

Today is Earth Day! Let's love, honor and take care of our beautiful Mother Earth. We are One. Our well being depends on how we take care of our planet. This is our home, the only one we have. #Earthday #weareone Hoje e o Dia da Terra! Vamos amar, honrar e cuidar da nossa linda M���£e Terra. Nos somos Um. Nosso bem estar depende de como cuidamos do nosso planeta. Esta a nossa casa, a nica que temos. #DiadaTerra

A photo posted by Gisele B���¼ndchen (@giseleofficial) on Apr 22, 2015 at 7:42am PDT

Russell posted on Twitter, "Happy #EarthDay everyone. The world is yours...so treat it with love and care." Kelly wrote, "#HappyEarthDay I urge everyone to go out and do something good for our planet today!!" Kerry tweeted, "HAPPY #EarthDay." Mark, meanwhile, wrote, "Happy #EarthDay all living systems of this beautiful, spinning, nearly impossible, blue shining sphere."

Happy #EarthDay everyone. The world is yours...so treat it with love and care. pic.twitter.com/qNyPeXaNY6

— Russell Simmons (@UncleRUSH) April 22, 2015

Also taking part in commemorating the Earth Day were Ellie Goulding, Sarah Jessica Parker, Nicole Richie, Jessica Szohr, Melissa Joan Hart and Kat Dennings.

Daniel Betr snapped this image of melting glaciers over Iceland. Beautiful and frightening. Let's not laugh off the threat to our Planet. We are slowly destroying it however much people want to deny it and play ignorant. Unless we start making small changes in our lives things will never be the same, and the beauty we love so much will be gone. Don't leave it till it's too late! #MakeChange #EarthDay

A photo posted by elliegoulding (@elliegoulding) on Apr 22, 2015 at 8:56am PDT

Honored to take part in celebrating Earth Day. Happily wearing my @jcrew shirt designed by @drawbertson. @jcrew, Xerces Society, and Buglife are partnering up to help save the bees and it's my great honor to help them spread the word. After all, they are our most important pollinators, responsible in part for some of my favorite things. French fries, fresh-cut flowers, raspberry pie. The list goes on... X, Sj #JCrewLovesBees

A photo posted by SJP (@sarahjessicaparker) on Apr 22, 2015 at 8:18am PDT

Our home. Our mother. Our Earth. #HappyEarthDay

A video posted by @nicolerichie on Apr 22, 2015 at 11:33am PDT

�°ï¿½ï¿½ï¿½ Happy Earth Day �°ï¿½ï¿½ï¿½ #SaveOurBeach

A photo posted by Jessica Szohr (@itsmejessicaszohr) on Apr 22, 2015 at 11:16am PDT

Today lets all do something good for #EarthDay and live by this.. If it's yellow, let it mellow. If it's brown, flush it down.

— Melissa Joan Hart (@MelissaJoanHart) April 22, 2015

In honor of #EarthDay, I'm going to try making vegoodles. Zucchoodles? Noodlekinnis.

— Kat Dennings (@OfficialKat) April 22, 2015