What can we expect for this year’s Arctic sea ice?
by Judith Curry
The seasonal forecasts of Arctic sea ice minimum have been submitted to annual SEARCH Sea Ice Outlook
Polar regions
Asymmetric responses of Arctic and Antarctic
by Judith Curry
Rapidly melting Arctic sea ice, growing Antarctic sea ice, and concerns about the melting Thwaites glacier – can all of this be explained by anthropogenic global warming?
Explaining(?) abrupt climate change
by Judith Curry . . . suggesting that Dansgaard-Oeschger events resulted from a combination of the effects of sea ice and ice shelves—structures that help define the margins of ice sheets—to account for both the rapid and the slower parts … Continue reading →
Why is there so much Antarctic sea ice?
by Judith Curry “It is very likely that the annual Antarctic sea ice extent increased at a rate of between 1.2 and 1.8% per decade between 1979 and 2012.” - IPCC AR5 The ship of fools fiasco brought widespread attention … Continue reading →
Early 20th century Arctic warming
by Judith Curry “Arctic temperature anomalies in the 1930s were apparently as large as those in the 1990s and 2000s. There is still considerable discussion of the ultimate causes of the warm temperature anomalies that occurred in the Arctic in … Continue reading →
Antarctic sea ice saga
by Judith Curry The drama and the irony of the Antarctic expedition stuck in summertime sea ice. The aim of the Spirit of Mawson expedition: . The Antarctic remains one of the last great unexplored regions on Earth. In spite … Continue reading →
The 2.8% effect
by Judith Curry The Arctic Ocean covers about 2.8% of the total Earth’s surface area – The Encyclopedia of Earth While we discuss the uncertainties in estimates of Arctic Ocean temperatures and its trends, it is useful to put … Continue reading →
Uncertainty in Arctic temperatures
by Judith Curry Motivated by the paper by Cowtan and Way, this post examines uncertainties in the recent variability of Arctic temperatures. This post considers two papers that compare reanalyses with surface based observations in the Arctic. For background on … Continue reading →
Unprecedented(?) Arctic warming. Part II
by Marcia Wyatt UPDATE: Addendum from Marcia Wyatt UPDATE: Giff Miller responds Miller et al.’s 2013 paper – Unprecedented recent summer warmth in Arctic Canada – splashed into the public eye last week with the declaration that current average summer … Continue reading →
Unprecedented (?) Arctic warming
by Judith Curry Arctic temperatures highest in at least 44,000 years. A new paper by Miller et al. is getting a great deal of press: Unprecedented recent warmth in Arctic Canada Abstract. Arctic air temperatures have increased in recent decades, … Continue reading →