Eco-minded celebs come together to celebrate "Greener Cities for a Cooler Planet" with Global Green USA before the upcoming Oscars. (Gerri Miller)

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Dennis Haysbert: Hi, I'm Dennis Haysbert.

Q'orianka Kilcher: Hello, my name is Q'orianka Kilcher.

Matt Petersen: I'm Matt Petersen.

Izabella Miko: Hi, I am Izabella Miko.

Elisabeth Rohm: Hey, I'm Elisabeth Rohm.

Brandon Johnson: Hey, I'm Brandon Johnson.

James Kyson Lee: Hi, I'm James Kyson Lee and you're watching the Mother Nature Network.

Dennis Haysbert: Hi, I'm Dennis Haysbert and my green tip today is to go solar on your home. And then change your light bulbs.

Q'orianka Kilcher: Hello, my name is Q'orianka Kilcher and I'm here at the Global Green Oscar party and my green tip of the day is become a part of the global warming of hearts and climate change in human consciousness and uh, let's stop our consumption of plastic bags and plastic in general.

Matt Petersen: My name's Matt Petersen, president of Global Green and my green tip of the day is to plant some vegetables in your backyard with your family.

Izabella Miko: Hi, my name is Izabella Miko and the green tip of the day is: turn off the water when you brush your teeth, or when you shave. It's 15 seconds but you're gonna save a lot of water and help the planet. And also, check out ekomiko.com, e-k-o-m-i-k-o, dot com, where you get all the green tips and the fashion and you get to see great eco-episodes.

Elisabeth Rohm: Hi, I'm Elisabeth Rohm and my green tip for the day is to drive an electric car, or just walk or ride a bicycle.

Brandon Johnson: Hi, I'm Brandon Johnson and my green tip of the day is: if you can walk, walk. If you can recycle, recycle. That's it.

James Kyson Lee: Hi, I'm James Kyson Lee and my green tip is to drive a hybrid or an electric car — the Chevy Volt is a great choice, Toyota Prius, and also the Tesla, coming out next year, which I will be getting on.

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