Air quality Quote by Linda Marsa

Anything greater than 350 of parts of carbon dioxide per million is more than the planet can safely deal with. It is what's overwhelming…

— Donald Trump

“Bill McKibben named his climate change advocacy group 350.org, because 350 ppm of atmospheric carbon dioxide is what Dr. James Hansen, former head of…

— Bernie Sanders

Each year we pump at least six billion tons of heat-trapping carbon into the innermost layer of our atmosphere, whose outer extent is only…

— Ross Gelbspan

Weather patterns over the next 20 or 30 years are going to be determined by the amount of CO2 that is up there now

— John Beddington

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…

— Bill Gates

The World Health Organization recently published some data showing that each overweight person causes and additional one tonne of CO2 to be emitted every…

— Jonathon Porritt

... The reality is that atmospheric CO2 has a minimal impact on greenhouse gases and world temperature. Water vapor is responsible for 95 percent…

— Walter Cunningham

The total efforts of the last 20 years of climate policy has likely reduced global emissions by less than 1 percent, or about 250…

— Bjorn Lomborg

When I was a boy in the 1930s, the carbon dioxide level was still below 300 parts per million. This year, it reached 382,…

— David Attenborough

By geo-historical standards, today's atmospheric CO2 levels are remarkably - indeed dangerously - low. We need CO2 in the air to support plant growth…

— Roger Helmer

“The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) synthesized the results from eighteen climate models used by groups around the…

— Heidi Cullen

Attributing global climate change to human CO₂ production is akin to trying to diagnose an automotive problem by ignoring the engine (analogous to the…

— Timothy Ball