Climate Science Glossary

Term Lookup

Enter a term in the search box to find its definition.

Settings

Use the controls in the far right panel to increase or decrease the number of terms automatically displayed (or to completely turn that feature off).

Term Lookup

Settings


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.

Home Arguments Software Resources Comments The Consensus Project Translations About Donate

Twitter Facebook YouTube Pinterest

RSS Posts RSS Comments Email Subscribe


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
View All Arguments...



Username
Password
New? Register here
Forgot your password?

Latest Posts

Archives

Observations Necessary for Useful Global Climate Models

Skeptic Arguments What the Science Says
"CO2 lags temperature"

CO2 didn't initiate warming from past ice ages but it did amplify the warming.

"It's cosmic rays" Cosmic rays show no trend over the last 30 years & have had little impact on recent global warming.
"Models are unreliable"

Models successfully reproduce temperatures since 1900 globally, by land, in the air and the ocean.

"Human CO2 is a tiny % of CO2 emissions" The natural cycle adds and removes CO2 to keep a balance; humans add extra CO2 without removing any.
"It's the sun"

In the last 35 years of global warming, sun and climate have been going in opposite directions

"Water vapor is the most powerful greenhouse gas"

Rising CO2 increases atmospheric water vapor, which makes global warming much worse.

"It's cooling" The last decade 2000-2009 was the hottest on record.
"It's the ocean" The oceans are warming and moreover are becoming more acidic, threatening the food chain.
"It's El Niño" El Nino has no trend and so is not responsible for the trend of global warming.
"We're coming out of the Little Ice Age"

Scientists have determined that the factors which caused the Little Ice Age cooling are not currently causing global warming.

"Satellites show no warming in the troposphere" The most recent satellite data show that the earth as a whole is warming.
"Greenland is gaining ice" Greenland on the whole is losing ice, as confirmed by satellite measurement.
"CO2 has a short residence time"

Excess CO2 from human emissions has a long residence time of over 100 years

"CO2 effect is saturated" Direct measurements find that rising CO2 is trapping more heat.
"Increasing CO2 has little to no effect" The strong CO2 effect has been observed by many different measurements.
"It's a natural cycle"

No known natural forcing fits the fingerprints of observed warming except anthropogenic greenhouse gases.

"Arctic sea ice has recovered" Thick arctic sea ice is in rapid retreat.
"Record high snow cover was set in winter 2008/2009"

Winter snow cover in 2008/2009 was average while the long-term trend in spring, summer, and annual snow cover is rapid decline.



The Consensus Project Website

THE ESCALATOR

(free to republish)


© Copyright 2020 John Cook
Home | Links | Translations | About Us | Privacy | Contact Us