Below is a complete listing of the articles in “How to Talk to a Climate Skeptic,” a series by Coby Beck containing responses to the most common skeptical arguments on global warming. There are four separate taxonomies; arguments are divided by:

Stages of Denial, Scientific Topics, Types of Argument, and Levels of Sophistication.

Individual articles will appear under multiple headings and may even appear in multiple subcategories in the same heading.

Stages of Denial

There’s nothing happening
Inadequate evidence:
There is no evidence
One record year is not global warming
The temperature record is simply unreliable
One hundred years is not enough
Glaciers have always grown and receded
Warming is due to the Urban Heat Island effect
Mauna Loa is a volcano
The scientists aren’t even sure

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Contradictory evidence:
It’s cold today in Wagga Wagga
Antarctic ice is growing
The satellites show cooling
What about mid-century cooling?
Global warming stopped in 1998
But the glaciers are not melting
Antarctic sea ice is increasing
Observations show climate sensitivity is not very high
Sea level in the Arctic is falling
Some sites show cooling

We don’t know why it’s happening
There’s no consensus:
Global warming is a hoax
There is no consensus
Position statements hide debate
Consensus is collusion
Peiser refuted Oreskes

The models don’t work:
We cannot trust unproven computer models
The models don’t have clouds
If aerosols are blocking the sun, the south should warm faster
Observations show climate sensitivity is not very high

Prediction is impossible:
We can’t even predict the weather next week
Chaotic systems are not predictable

We can’t be sure:
Hansen has been wrong before
If we can’t understand the past, how can we understand the present?
The scientists aren’t even sure
They predicted global cooling in the 1970s

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Climate change is natural
It happened before:
It was warmer during the Holocene Climatic Optimum
The medieval warm period was just as warm as today
Greenland used to be green
Global warming is nothing new!
The hockey stick is broken
Vineland was full of grapes

It’s part of a natural change:
Current global warming is just part of a natural cycle
Mars and Pluto are warming too
CO2 in the air comes mostly from volcanoes
The null hypothesis says global warming is natural
Climate is always changing
Natural emissions dwarf human emissions
The CO2 rise is natural
We are just recovering from the LIA

It’s not caused by CO2:
Climate scientists dodge the subject of water vapor
Water vapor accounts for almost all of the greenhouse effect
There is no proof that CO2 is causing global warming
Mars and Pluto are warming too
CO2 doesn’t lead, it lags
What about mid-century cooling?
Geological history does not support CO2’s importance
Historically, CO2 never caused temperature change
It’s the sun, stupid

Climate change is not bad
The effects are good:
What’s wrong with warmer weather?

Climate change can’t be stopped
It’s too late:
Kyoto is a big effort for almost nothing

It’s someone else’s problem:
Why should the U.S. join Kyoto when China and India haven’t?
The U.S. is a net CO2 sink

It’s economically infeasible:
Climate change mitigation would lead to disaster

Scientific Topics

Temperature
There is no evidence
The temperature record is simply unreliable
One hundred years is not enough
Current global warming is just part of a natural cycle
What’s wrong with warmer weather?
It’s cold today in Wagga Wagga
Warming is due to the Urban Heat Island effect
The satellites show cooling
Global warming stopped in 1998
They predicted global cooling in the 1970s
One record year is not global warming
Some sites show cooling

Cryosphere
Glaciers
Glaciers have always grown and receded
But the glaciers are not melting

Sea ice
Antarctic sea ice is increasing
Antarctic ice is growing

Ice sheets
Greenland used to be green

Oceans
Sea level in the Arctic is falling

Modeling
Scenarios
Kyoto is a big effort for almost nothing
Hansen has been wrong before

Uncertainties
We can’t even predict the weather next week
Chaotic systems are not predictable
We cannot trust unproven computer models
The models don’t have clouds

Climate forcings
Solar influences
Mars and Pluto are warming too
It’s the sun, stupid

Greenhouse gases
Climate scientists dodge the subject of water vapor
Water vapor accounts for almost all of the greenhouse effect
There is no proof that CO2 is causing global warming
CO2 doesn’t lead, it lags
CO2 in the air comes mostly from volcanoes
What about mid-century cooling?
Geological history does not support CO2’s importance
Natural emissions dwarf human emissions
Mauna Loa is a volcano
The CO2 rise is natural
Historically, CO2 never caused temperature change
The US is a net CO2 sink
Observations show climate sensitivity is not very high

Aerosols
What about mid-century cooling?
If aerosols are blocking the sun, the south should warm faster

Paleo climate
Holocene
It was warmer during the Holocene Climatic Optimum
The medieval warm period was just as warm as today
Greenland used to be green
The hockey stick is broken
Vineland was full of grapes
We are just recovering from the LIA

Ice ages
CO2 doesn’t lead, it lags
Global warming is nothing new!

Geologic history
What’s wrong with warmer weather?
Geological history does not support CO2’s importance
Climate is always changing
Historically, CO2 never caused temperature change
If we can’t understand the past, how can we understand the present?

Scientific process
Global warming is a hoax
There is no proof that CO2 is causing global warming
There is no consensus
The null hypothesis says global warming is natural
Position statements hide debate
If we can’t understand the past, how can we understand the present?
The scientists aren’t even sure
Consensus is collusion
Peiser refuted Oreskes

Types of Argument

Uninformed
There is no evidence
One record year is not global warming
One hundred years is not enough
There is no proof that CO2 is causing global warming
What’s wrong with warmer weather?
Climate change mitigation would lead to disaster
There is no consensus
We cannot trust unproven computer models

Misinformed
It was warmer during the Holocene Climatic Optimum
The medieval warm period was just as warm as today
Antarctic ice is growing
CO2 in the air comes mostly from volcanoes
Greenland used to be green
The satellites show cooling
Natural emissions dwarf human emissions
It’s the sun, stupid
The U.S. is a net CO2 sink
But the glaciers are not melting
Antarctic sea ice is increasing
They predicted global cooling in the 1970s
Vineland was full of grapes


Cherry Picking

It’s cold today in Wagga Wagga
Antarctic sea ice is growing
The satellites show cooling
Global warming stopped in 1998
Antarctic sea ice is increasing
Vineland was full of grapes
Observations show climate sensitivity is not very high
The sea level in the Arctic is falling
Some sites show cooling


Urban Myths

The medieval warm period was just as warm as today
CO2 in the air comes mostly from volcanoes
Greenland used to be green
Hansen has been wrong before
They predicted global cooling in the 1970s
Vineland was full of grapes


FUD

The temperature record is simply unreliable
Glaciers have always grown and receded
Climate scientists dodge the subject of water vapor
Water vapor accounts for almost all of the greenhouse effect
Current global warming is just part of a natural cycle
Kyoto is a big effort for almost nothing
Mars and Pluto are warming too
It’s cold today in Wagga Wagga
CO2 doesn’t lead, it lags
There is no consensus
Antarctic ice is growing
Warming is due to the Urban Heat Island effect
We can’t even predict the weather next week
Chaotic systems are not predictable
What about mid-century cooling?
The null hypothesis says global warming is natural
Geological history does not support CO2’s importance
Climate is always changing
Natural emissions dwarf human emissions
Mauna Loa is a volcano
Global warming is nothing new!
The CO2 rise is natural
The hockey stick is broken
Historically, CO2 never caused temperature change
The models don’t have clouds
Global warming stopped in 1998
If we can’t understand the past, how can we understand the present?
If aerosols are blocking the sun, the south should warm faster
The scientists aren’t even sure
Antarctic sea ice is increasing
Peiser refuted Oreskes
Vineland was full of grapes
Observations show climate sensitivity is not very high
Sea level in the Arctic is falling
We are just recovering from the LIA


Non-Scientific

Global warming is a hoax
Kyoto is a big effort for almost nothing
Why should the U.S. join Kyoto when China and India haven’t?
Hansen has been wrong before
Position statements hide debate
The scientists aren’t even sure
Consensus is collusion
They predicted global cooling in the 1970s

Levels of Sophistication

Silly
There is no evidence Global warming is a hoax
One record year is not global warming
Climate change mitigation would lead to disaster
Mars and Pluto are warming too
Mauna Loa is a volcano

Naive
One hundred years is not enough
Glaciers have always grown and receded
Why should the U.S. join Kyoto when China and India haven’t?
It’s cold today in Wagga Wagga
CO2 in the air comes mostly from volcanoes
We can’t even predict the weather next week
We can not trust unproven computer models
The satellites show cooling
Natural emissions dwarf human emissions
The models don’t have clouds
Global warming stopped in 1998
It’s the sun, stupid
If we can’t understand the past, how can we understand the present?
The scientists aren’t even sure
Vineland was full of grapes
Some sites show cooling

Specious
The temperature record is simply unreliable
Climate scientists dodge the subject of water vapor
There is no proof that CO2 is causing global warming
Current global warming is just part of a natural cycle
It was warmer during the Holocene Climatic Optimum
The medieval warm period was just as warm as today
What’s wrong with warmer weather?
Kyoto is a big effort for almost nothing
CO2 doesn’t lead, it lags
There is no consensus Antarctic ice is growing
Warming is due to the Urban Heat Island effect
Greenland used to be green
What about mid-century cooling?
The null hypothesis says global warming is natural
Geological history does not support CO2’s importance
Climate is always changing
Global warming is nothing new!
The CO2 rise is natural
Historically, CO2 never caused temperature change
Hansen has been wrong before
Position statements hide debate
But the glaciers are not melting
If aerosols are blocking the sun, the south should warm faster
Antarctic sea ice is increasing
Consensus is collusion
They predicted global cooling in the 1970s
Peiser refuted Oreskes
Vineland was full of grapes

Scientific
Water vapor accounts for almost all of the greenhouse effect
Chaotic systems are not predictable
The hockey stick is broken
Observations show climate sensitivity is not very high
Sea level in the Arctic is falling
We are just recovering from the LIA