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How CO2 warms Earth through the greenhouse effect and why CO2 is not ‘saturated’ in Earth’s atmosphere
There is no doubt about it – climate science can be complex. But sometimes this complexity is mistaken for uncertainty.…
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There is no doubt about it – climate science can be complex. But sometimes this complexity is mistaken for uncertainty.…
Claim:
Climate scientists disagree about how much warming is associated with our emissions and whether this warming is larger than natural climate variability from the sun and volcanic eruptions
Claim:
Human-caused carbon emissions’ effect on climate is ‘non-discernible’. Measurements of carbon isotope ratios in atmospheric CO2 indicate that it is the recent expansion of a more productive biosphere that has led to increased CO2 concentrations in the atmosphere.
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High CO2 was fine for the dinosaurs and high CO2 benefits plants today in greenhouses, so more CO2 can’t be bad for humans
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Increases in atmospheric CO2 is mainly from natural causes, like ocean outgassing, and not from humans who emit so little in comparison
Science has shown consistently that adding CO2 to the atmosphere is changing the climate in various ways, including raising the…
Claim:
“The question is, ‘how much of an impact do we have on [climate]?’ That has not totally been quantified”; climate change is happening anyway, “The ice age happened without us…It’s probably this constant cycle”.
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CO<sub>2</sub> is not the cause of our current warming trend; Arctic sea ice has expanded in recent years; Polar bears’ population is growing and is not threatened by climate change; CO<sub>2</sub> is good for plant life
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“Believing CO2 controls the climate is pretty close to believing in magic.”
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Carbon dioxide is not a climate heat driver; we had an ice age when the Earth had extraordinarily larger amounts of carbon dioxide; in the 1970s scientists thought we were going to have a new ice age.