healy-aug-24-2015-polar-bear-v-tim-kenna

It’s official! You can stop worrying about “climate change” effects on the polar bears, seals, and walrus – they’ve seen it all before, including ice-free summers

Paleoclimate + genetic study confirms: Arctic species adapted to sea ice changes Guest essay by Dr. Susan Crockford A new paper that combines paleoclimatology data for the last 56 million years with molecular genetic evidence concludes there were no biological extinctions over the last 1.5M years despite profound Arctic sea ice changes that included ice-free summers:…

Radiosonde observations from RV Mirai over the ice-free Arctic Ocean. CREDIT Jun Inoue

Filling in the sparse Arctic weather data

From RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS Optimized arctic observations for improving weather forecast in the northern sea route The current reduction in Arctic sea-ice extent causes unpredictable weather phenomena in the Arctic Ocean (strong winds, high waves, and rapid sea-ice movement associated with cyclones) also over the mid-latitudes (heat waves, severe winters, etc.). With…

A Svalbard polar bear in the fall of 2015

More scientific evidence that polar bears are doing just fine – a 30 42% increase in population with some of them “as fat as pigs.”

Guest essay by Dr. Susan J. Crockford of polarbearscience.com * see update below on the % number Survey Results: Svalbard polar bear numbers increased 30 42% over last 11 years Results of this fall’s Barents Sea population survey have been released by the Norwegian Polar Institute and they are phenomenal: despite several years with poor ice conditions,…

Picture: AP Source: AP

The 2015 Arctic Report Card: NOAA Failed Walrus Science!

Guest essay by Jim Steele Director emeritus Sierra Nevada Field Campus, San Francisco State University Good scientists fully understand that complex issues with high uncertainties require two or more working hypotheses. NOAA failed to communicate the great uncertainties and alternative. Instead NOAA’s report card made claims that hinge on the unproven hypothesis that a reduction…

Ben Kopec, a Ph.D. candidate in Dartmouth College's Department of Earth Sciences, and his colleagues find that the melting of sea ice will significantly increase Arctic precipitation, creating a climate feedback comparable to doubling global carbon dioxide. CREDIT Derek Keats via Foter.com / CC BY

Claim: Melting sea ice increases Arctic precipitation, complicates climate predictions

From DARTMOUTH COLLEGE and the “Reports of the demise of Arctic Sea Ice are greatly exaggerated” department HANOVER, N.H. – The melting of sea ice will significantly increase Arctic precipitation, creating a climate feedback comparable to doubling global carbon dioxide, a Dartmouth College-led study finds. “The increases of precipitation and changes in the energy balance may…

UCAR-sea-ice-model

NCAR: winter sea ice could hold steady in the next several years

NCAR develops method to predict sea ice changes years in advance From the NATIONAL CENTER FOR ATMOSPHERIC RESEARCH/UNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH and the “we know so we’ll put that statement in a press release” department comes this interesting tidbit of modeling certainty. BOULDER – Climate scientists at the National Center for Atmospheric Research (NCAR)…

Arctic Ocean melt ponds. Photo: Karen Frey/Clark University

Claim: Arctic sea ice plays a pivotal role in the Arctic methane cycle

Nature study on greenhouse gas feedback mechanisms between the atmosphere, sea ice and ocean From the ALFRED WEGENER INSTITUTE, HELMHOLTZ CENTRE FOR POLAR AND MARINE RESEARCH The ice-covered Arctic Ocean is a more important factor concerning the concentration of the greenhouse gas methane in the atmosphere than previously assumed. Experts from the Alfred Wegener Institute,…