Amount Quote by John Beddington

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

The atmospheric CO2 concentration is rising - mainly due to the burning of fossil fuels. It's agreed that this build-up will, in itself, induce…

— Martin Rees

Clearly the climate is changing, whether caused by CO2 emissions or some other cause.

— Paul Craig Roberts

CO2 emissions have been increasing, but the rise in air temperature stopped around 2001. Climate change is due in large part to naturally occurring oscillations.

— Syun-Ichi Akasofu

The warming we've experienced in the late 20th century could just as easily be explained by small decreases in cloud cover - natural changes…

— Willie Soon

“Why have global temperatures not risen in the best part of two decades while CO2 levels have kept on rising? •    ”

— Alan Carlin

Our CO2 mixes with everyone else's within a year, then hangs around for centuries like a shroud.

— William H. Calvin

The models that have been constructed agree that when, as has been predicted, the level of carbon dioxide or its equivalent in other greenhouse…

— Bill McKibben

“CO2 had increased due to human activities, CO2 will continue to increase unless changes are made, and these increases will affect weather, agriculture, and…

— Naomi Oreskes

The general trend in the last 4,000 years is that carbon dioxide and temperature have been moving against each other.

— Piers Corbyn

The role of CO2 is not nearly as clear as the climate catastrophists would suggest.

— Tony Abbott

“The record from the Vostok core shows that CO2 levels and temperatures have varied in tandem. Current CO2 levels are unprecedented in the last…

— Elizabeth Kolbert