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

Term:

Settings

Beginner Intermediate Advanced No Definitions Definition Life:

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 Support

	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...

Latest Posts

Arctic sea ice extent over 1,450 years

Late-summer Arctic sea ice extent in million square kilometers over the last 1450 years (red line), reconstructed from a combination of Arctic ice core, tree ring, and lake sediment data by Kinnard et al. (2011). A 40-year low-pass filter was applied to the data. The shaded area shows the uncertainty (95% confidence interval), and the blue dashed line shows modern observations. Arctic sea ice extent is currently lower than at any time in the last 1450 years. Unfortunately, sea ice is now melting even faster than predicted.