Absorbing Quote by Svante Arrhenius

The average ground temperature of the Earth is impossible to measure since most of the Earth is ocean...So this average ground temperature is a…

— Freeman Dyson

The physical relationship between CO2 molecules and the atmosphere and the trapping of heat is as well-established as gravity, for God's sakes. It's not…

— Al Gore

“Calculations by Plass (1956) indicate that a ten percent increase in atmospheric carbon dioxide would increase the average temperature by 0.36 degrees Celsius. But,…

— Bill McKibben

“Few of those familiar with the natural heat exchanges of the atmosphere, which go into the making of our climates and weather, would be…

— Bill McKibben

I am appalled at the state of discord in the field of climate science. There is no observational evidence that the addition of anthropogenic…

— George T Wolff

Few scientists now dispute that today's soaring levels of carbon dioxide and other gases in the atmosphere will cause global temperature averages to rise…

— Carl Sagan

I believe the earth gets warmer and I also believe the earth gets cooler. And I think history points out that it does that…

— Rick Santorum

Based on the laws of physics, the effect on temperature of man's contribution to atmospheric CO2 levels is minuscule and indiscernible from the natural…

— Robert L Scotto

...it is fairly well agreed that the surface temperature will rise about 1°C as a modest response to a doubling of atmospheric CO2 if…

— John Christy

The important point there is that when people talk about a mean temperature rise of say two, three or four degrees that's a sort…

— Martin Rees

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

I consider the concept of a global mean temperature to be somewhat dubious. A single number cannot adequately capture climate c hange. This number,…

— Craig F. Bohren