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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Climate's changed before
It's the sun
It's not bad
There is no consensus
It's cooling
Models are unreliable
Temp record is unreliable
Animals and plants can adapt
It hasn't warmed since 1998
Antarctica is gaining ice
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Skeptic Arguments

This is a list of every skeptic argument encountered online as well as how often each argument is used. How this is calculated...

1 Climate's changed before 4.3% past
2 It's the sun 4.2% sun
3 It's not bad 3.9% impacts
4 There is no consensus 3.1% consensus
5 It's cooling 3.1% cooling
6 Models are unreliable 2.9% model
7 Temp record is unreliable 2.3% temp
8 Animals and plants can adapt 2.2% species
9 It hasn't warmed since 1998 1.9% 1998
10 Antarctica is gaining ice 1.8% antarctica
11 Ice age predicted in the 70s 1.8% 1970s
12 CO2 lags temperature 1.8% lag
13 Climate sensitivity is low 1.7% sensitivity
14 We're heading into an ice age 1.7% iceage
15 Ocean acidification isn't serious 1.6% acid
16 Hockey stick is broken 1.6% hockey
17 Climategate CRU emails suggest conspiracy 1.6% climategate
18 Hurricanes aren't linked to global warming 1.5% hurricane
19 Al Gore got it wrong 1.5% gore
20 Glaciers are growing 1.5% glacier
21 It's cosmic rays 1.5% cosmic
22 1934 - hottest year on record 1.4% 1934
23 It's freaking cold! 1.3% cold
24 Extreme weather isn't caused by global warming 1.3% extreme
25 Sea level rise is exaggerated 1.3% sealevel
26 It's Urban Heat Island effect 1.2% uhi
27 Medieval Warm Period was warmer 1.1% mwp
28 Mars is warming 1.1% mars
29 Arctic icemelt is a natural cycle 1.1% arcticcycle
30 Increasing CO2 has little to no effect 1.0% greenhouse
31 Oceans are cooling 1.0% oceanheat
32 Climate scientists are in it for the money 1.0% money
33 It's a 1500 year cycle 0.9% 1500cycle
34 Human CO2 is a tiny % of CO2 emissions 0.9% co2
35 IPCC is alarmist 0.9% underestimat
36 Water vapor is the most powerful greenhouse gas 0.9% vapor
37 Polar bear numbers are increasing 0.9% bear
38 CO2 limits will harm the economy 0.8% economy
39 It's not happening 0.8% warming
40 Greenland was green 0.8% green
41 CO2 is not a pollutant 0.7% pollutant
42 Greenland is gaining ice 0.7% greenland
43 CO2 is plant food 0.7% plant
44 There's no empirical evidence 0.7% evidence
45 Arctic sea ice has recovered 0.7% arctic
46 Other planets are warming 0.7% planets
47 It's clouds 0.7%
48 There's no correlation between CO2 and temperature 0.6% correlate
49 We're coming out of the Little Ice Age 0.6% lia
50 It cooled mid-century 0.6% midcentury
51 Global warming stopped in 1998, 1995, 2002, 2007, 2010, ???? 0.6% stopped
52 CO2 was higher in the past 0.6% pastco2
53 It warmed before 1940 when CO2 was low 0.6% pre1940
54 Satellites show no warming in the troposphere 0.6% troposphere
55 It's aerosols 0.5% aerosols
56 2009-2010 winter saw record cold spells 0.5% winter
57 It's a natural cycle 0.5% cycle
58 It's El Niño 0.5% elnino
59 Mt. Kilimanjaro's ice loss is due to land use 0.5% kilimanjaro
60 It's not us 0.5% agw
61 It's Pacific Decadal Oscillation 0.5% pdo
62 There's no tropospheric hot spot 0.5% hotspot
63 2nd law of thermodynamics contradicts greenhouse theory 0.5% thermo
64 Scientists can't even predict weather 0.4% weather
65 IPCC were wrong about Himalayan glaciers 0.4% himalaya
66 Greenhouse effect has been falsified 0.4% falsify
67 CO2 limits will hurt the poor 0.4% poor
68 Clouds provide negative feedback 0.4% cloud
69 The science isn't settled 0.4% settled
70 Sea level rise predictions are exaggerated 0.4% seapredict
71 It's the ocean 0.4% ocean
72 IPCC were wrong about Amazon rainforests 0.4% amazon
73 Corals are resilient to bleaching 0.4% bleach
74 Volcanoes emit more CO2 than humans 0.4% volcano
75 CO2 effect is saturated 0.3% saturate
76 Greenland ice sheet won't collapse 0.3% icecollapse
77 CO2 is just a trace gas 0.3% trace
78 500 scientists refute the consensus 0.3% 500
79 It's methane 0.3% methane
80 CO2 has a short residence time 0.3% residence
81 CO2 measurements are suspect 0.3% co2data
82 Humidity is falling 0.3% humidity
83 Neptune is warming 0.3% neptune
84 Jupiter is warming 0.3% jupiter
85 Springs aren't advancing 0.3% spring
86 CO2 is not increasing 0.3% co2up
87 It's land use 0.3% landuse
88 Scientists tried to 'hide the decline' in global temperature 0.3% decline
89 Record snowfall disproves global warming 0.3% snowfall
90 They changed the name from 'global warming' to 'climate change' 0.2% name
91 Wildfires are not caused by global warming 0.2% wildfires
92 Solar Cycle Length proves its the sun 0.2% scl
93 CO2 is not the only driver of climate 0.2% driver
94 IPCC overestimate temperature rise 0.2% overestimate
95 Peer review process was corrupted 0.2% peerreview
96 CO2 is coming from the ocean 0.2% oceanco2
97 Pluto is warming 0.2% pluto
98 CO2 limits will make little difference 0.2% limits
99 Renewable energy is too expensive 0.2% expensive
100 Arctic was warmer in 1940 0.2% arctic1940
101 Sea level rise is decelerating 0.2% sealevelrise
102 Southern sea ice is increasing 0.2% southice
103 It's microsite influences 0.2% microsite
104 Humans are too insignificant to affect global climate 0.2% significant
105 Phil Jones says no global warming since 1995 0.2% 1995
106 Lindzen and Choi find low climate sensitivity 0.2% lindzenchoi
107 It's not urgent 0.2% urgent
108 Dropped stations introduce warming bias 0.2% dropped
109 Infrared Iris will reduce global warming 0.2% iris
110 It's too hard 0.2% toohard
111 It's albedo 0.2% albedo
112 Tree-rings diverge from temperature after 1960 0.2% diverge
113 It's soot 0.2% soot
114 Roy Spencer finds negative feedback 0.2% negspencer
115 Hansen's 1988 prediction was wrong 0.2% hansen1988
116 It's global brightening 0.2% bright
117 Earth hasn't warmed as much as expected 0.2% inertia
118 Arctic sea ice loss is matched by Antarctic sea ice gain 0.2% seaice
119 It's a climate regime shift 0.2% shift
120 Solar cycles cause global warming 0.2% solarcycle
121 Over 31,000 scientists signed the OISM Petition Project 0.1% oism
122 A drop in volcanic activity caused warming 0.1% volcanodrop
123 Plant stomata show higher and more variable CO2 levels 0.1% stomata
124 Less than half of published scientists endorse global warming 0.1% schulte
125 Ice isn't melting 0.1% icemelt
126 Sea level is not rising 0.1% searise
127 Climate is chaotic and cannot be predicted 0.1% chaos
128 IPCC ‘disappeared’ the Medieval Warm Period 0.1% ipccmwp
129 It's ozone 0.1% ozone
130 The IPCC consensus is phoney 0.1% hulme
131 Freedom of Information (FOI) requests were ignored 0.1% foi
132 Climate 'Skeptics' are like Galileo 0.1% galileo
133 Tuvalu sea level isn't rising 0.1% tuvalu
134 Renewables can't provide baseload power 0.1% baseload
135 Trenberth can't account for the lack of warming 0.1% trenberth
136 Naomi Oreskes' study on consensus was flawed 0.1% oreskes
137 CRU tampered with temperature data 0.1% tamper
138 Ice Sheet losses are overestimated 0.1% iceloss
139 Melting ice isn't warming the Arctic 0.1% amplify
140 Breathing contributes to CO2 buildup 0.1% breath
141 Soares finds lack of correlation between CO2 and temperature 0.1% soares
142 Satellite error inflated Great Lakes temperatures 0.1% greatlake
143 We're heading into cooling 0.1% futurecool
144 Murry Salby finds CO2 rise is natural 0.1% salby
145 97% consensus on human-caused global warming has been disproven 0.1% robust97
146 Most of the last 10,000 years were warmer 0.1% 10000
147 The sun is getting hotter 0.1% acrim
148 CO2 emissions do not correlate with CO2 concentration 0.1% co2conc
149 It warmed just as fast in 1860-1880 and 1910-1940 0.1% trends
150 Record high snow cover was set in winter 2008/2009 0.1% snowcover
151 It's waste heat 0.1% waste
152 A grand solar minimum could trigger another ice age 0.1% solarminimum
153 Water vapor in the stratosphere stopped global warming 0.1% stratosphere
154 An exponential increase in CO2 will result in a linear increase in temperature 0.1% linear
155 Climate change solutions are too expensive 0.1% costs
156 CERN CLOUD experiment proved cosmic rays are causing global warming 0.1% CERN
157 Mauna Loa is a volcano 0.1% mauna
158 It's planetary movements 0.1% planetary
159 Deniers are part of the 97% 0.1% fringe
160 Venus doesn't have a runaway greenhouse effect 0.1% venus
161 Antarctica is too cold to lose ice 0.0% toocold
162 Skeptics were kept out of the IPCC? 0.0% ipccskeptic
163 Positive feedback means runaway warming 0.0% runaway
164 Water levels correlate with sunspots 0.0% watersun
165 CO2 increase is natural, not human-caused 0.0% co2increase
166 Warming causes CO2 rise 0.0% warmco2
167 CO2 was higher in the late Ordovician 0.0% ordovician
168 No warming in 16 years 0.0% 16years
169 Coral atolls grow as sea levels rise 0.0% atoll
170 It's internal variability 0.0% variable
171 Schmittner finds low climate sensitivity 0.0% schmittner
172 CO2 limits won't cool the planet 0.0% limitscool
173 It's CFCs 0.0% cfc
174 Scientists retracted claim that sea levels are rising 0.0% searetract
175 Renewable energy investment kills jobs 0.0% jobs
176 The 97% consensus on human-caused global warming is a robust result 0.0% 97percent
177 Greenland has only lost a tiny fraction of its ice mass 0.0% icefraction
178 Ben Santer rewrote the 1995 IPCC report 0.0% santer
179 DMI show cooling Arctic 0.0% dmi
180 It's a climate shift step function caused by natural cycles 0.0% stepfunction
181 Royal Society embraces skepticism 0.0% royalsoc
182 It's only a few degrees 0.0% fewdegrees
183 Arctic sea ice extent was lower in the past 0.0% pastarctic
184 Climate change isn't increasing extreme weather damage costs 0.0% damagecosts
185 CO2 only causes 35% of global warming 0.0% 35percent
186 IPCC graph showing accelerating trends is misleading 0.0% accelerate
187 It's satellite microwave transmissions 0.0% microwave
188 Sea level fell in 2010 0.0% slr2010
189 Heatwaves have happened before 0.0% heatwave
190 Great Barrier Reef is in good shape 0.0% gbr
191 We didn't have global warming during the Industrial Revolution 0.0% industrial
192 Loehle and Scafetta find a 60 year cycle causing global warming 0.0% loehle
193 UAH atmospheric temperatures prove climate models and/or surface temperature data sets are wrong 0.0% uah
194 Ljungqvist broke the hockey stick 0.0% ljungqvist
195 Underground temperatures control climate 0.0% underground
196 Removing all CO2 would make little difference 0.0% removeco2
197 Humans survived past climate changes 0.0% survived
198 IPCC human-caused global warming attribution confidence is unfounded 0.0% confidence
199 Postma disproved the greenhouse effect 0.0% postma
200 Hansen predicted the West Side Highway would be underwater 0.0% highway


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