Sylvia Earle

The Arctic is a place that historically, during all preceding human history, has largely been an icy realm with an impact on ocean currents. That, in turn, influences the temperature of the planet. The Arctic is now vulnerable because of the excess carbon dioxide in the atmosphere, with a rate of melting that is stunning.

American Scientist

Bill Gates

Now, we put out a lot of carbon dioxide every year, over 26 billion tons. For each American, it's about 20 tons. For people in poor countries, it's less than one ton. It's an average of about five tons for everyone on the planet. And, somehow, we have to make changes that will bring that down to zero.

American Businessman

Percy Julian

I remember, as a boy of 17 years of age, this was a fascinating thing for me: how we human beings breathe out carbon dioxide into the air, the leaves of plants pick this carbon dioxide up, and the plant gives off oxygen, which we can breathe in and keep our life going.

Elon Musk

We're running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere... can handle before there is an environmental catastrophe.

South African Businessman

Mike Quigley

Climate change is not just about carbon dioxide levels and melting polar ice caps. It is about our public health and protecting our Earth for future generations.

American Politician

Sam Brownback

I support strongly the expansion of nuclear power because that is one of the key ways of getting electricity generated and reducing carbon dioxide emissions.

Andrew R. Wheeler

America is a global leader on clean air progress and carbon dioxide reductions, and we are the envy of the world when it comes to clean water.

American Public Servant

Charles C. Mann

There are several types of greenhouse gasses, but carbon dioxide is the most important.

American Journalist

Michele Bachmann

Carbon dioxide is natural. It is not harmful. It is part of Earth's life cycle.

John Barrasso

Humans are contributing to additional carbon dioxide in the atmosphere.

Dioxide compounds consist of two oxygen atoms bonded to another element, like carbon or sulfur.

Chemical Composition

Dioxides, especially carbon dioxide, are important in discussions about climate change and air quality.

Environmental Relevance

The word 'dioxide' is often used in scientific and technical fields, like chemistry and environmental science.

Scientific Context

 that might be happening deep beneath our feet. Fracking's biggest controversy, though, is happening above the ground. The general consensus is that burning natural gas is better for the environment than burning coal since the gas collected from fracking emits only half the carbon dioxide as coal

How does fracking work?...

 in our atmophere. Just as oxygen gas prefers the dark red photons, carbon dioxide and other greenhouse gases match with infrared photons. They provide the right amount of energy to shift the gas molecules into their higher energy level. Shortly after a carbon dioxide molecule

How quantum mechanics...

 age your skin, and promote the development of potentially deadly skin cancer. Sunscreen protects your skin either physically by deflecting UV rays with an inorganic blocker like zinc oxide or titanium dioxide, or chemically by using carbon-based compounds to absorb UV photons

Which sunscreen should...

 And each of these looks like a hydrogen bomb; actually, the effects are even worse. This is when deep-Earth material comes to the surface, spreads out over the surface of the planet. Well, it's not the lava that kills anything, it's the carbon dioxide that comes out with it.

Earth's mass extinctions...

 often struggling to keep track of everything we need to do. But fortunately, there's one important thing we don't have to worry about breathing. When you breathe, you transport oxygen to the body's cells to keep them working and clear your system of the carbon dioxide

How do lungs work? -...

 okay it has limited mobility but you're gonna pressurize cans fantastic pressurizes you gives you your oxygen scrubs your carbon dioxide a little micrometeorite protection helps little radiation but we can do better our dream is to invent the world's

How to create a space...

 which are pressed to squeeze out the water, and create a firm cheese. Different strains of bacteria make different kinds of cheese. For example, a species of bacteria that emits carbon dioxide is what gives swiss cheese its characteristic holes.

The beneficial bacteria...

 of carbon dioxide and extensive lava flows. Next to this world of fire is a world of water, Earth. The water systems on this planet help create the only known environment in the universe capable of sustaining life.

Solar System 101 PIPE...

 it absorbs the heat radiation from the earth's surface and that that keeps the surface warmer than it would be otherwise the problem is what we're doing now is we're adding extra carbon dioxide and

When The World Gets 1℃...

 About 66 million years ago, something terrible happened to life on our planet. Ecosystems were hit with a double blow as massive volcanic eruptions filled the atmosphere with carbon dioxide