Heartland Institute report’s claim that climate models are too sensitive to CO2 does not reflect evidence

Craig Idso, Robert Carter, S. Fred Singer in Heartland Institute:

"[climate models] systematically over-estimate the sensitivity of climate to carbon dioxide"

— 23 May 2017

Heartland Institute report incorrectly claims no evidence of human impacts in melting ice

Craig Idso, Robert Carter, S. Fred Singer in Heartland Institute:

"Melting of Arctic sea ice and polar icecaps is not occurring at ‘unnatural’ rates and does not constitute evidence of a human impact on the climate."

— 17 May 2017

Global sea level rise is accelerating, despite Heartland Institute report’s claims otherwise

Craig Idso, Robert Carter, S. Fred Singer in Heartland Institute:

"Best available data show sea-level rise is not accelerating. Local and regional sea levels continue to exhibit typical natural variability—in some places rising and in others falling."

— 08 May 2017

The Sun cannot explain recent global warming, contrary to what Heartland Institute report claims

Craig Idso, Robert Carter, S. Fred Singer in Heartland Institute:

"Solar forcings are not too small to explain twentieth century warming. In fact, their effect could be equal to or greater than the effect of CO2 in the atmosphere."

— 03 May 2017

Climate sensitivity estimate given in Heartland Institute’s report is misleading

Craig Idso, Robert Carter and S. Fred Singer in Heartland Institute:

"Doubling the concentration of atmospheric CO2 from its pre-industrial level, in the absence of other forcings and feedbacks, would likely cause a warming of ~0.3°C to 1.1°C"

— 02 May 2017

In CNN interview, William Happer incorrectly claims temperatures don’t match climate model projections

William Happer in CNN:

"The temperature is not rising nearly as fast as the alarmist computer models predicted. You know, it’s much, much less, factors of 2 or 3 less."

— 25 Apr 2017

In CNN interview, William Happer misleads about the impact of rising carbon dioxide on plant life

William Happer in CNN:

"there's this myth that's developed around carbon dioxide that it's a pollutant […] Carbon dioxide is a perfectly natural gas, it’s just like water vapor, it’s something that plants love."

— 25 Apr 2017

Boston Globe column claims that climate models have consistently failed based on no evidence

Jeff Jacoby in Boston Globe:

"Climate projections using models based on it [the water vapor feedback] have consistently failed"

— 16 Mar 2017

Claim in New Scientist that humans are responsible for over 100% of warming is mostly correct

Michael Le Page in New Scientist:

"more than 100 per cent of the warming over the past century is due to human actions"

— 11 Mar 2017

Science shows that humans are primarily responsible for climate change, counter to EPA Administrator Scott Pruitt’s claim

EPA Administrator Scott Pruitt in CNBC:

"I would not agree that [carbon dioxide is] a primary contributor to the global warming that we see."

— 10 Mar 2017