Vanishing Arctic Ice and Amplification

While heat waves and more intense storms have been directly linked to a warming Earth, new research is exploring possible impacts of an Arctic that is warming at twice the pace of the rise in global temperatures. Jennifer Francis, Rutgers University, discusses new research and efforts to understand this controversial aspect of climate change in…

Why is the Weather in the Northern Hemisphere so unusual mild? #JetStream #ElNino #PolarVortex

Here we look at the current weather configuration in the Northern Hemisphere, with the scope on the mild 2015 winter weather in what seems to affect many regions in northern latitudes this winter. The atmosphere in many northern regions like Canada (Northern America) or Europe is currently dominated by westerly jet stream winds. This configuration has…

The California drought and climate disruption

ClimateProgress covered the jet stream connection on Monday: It will be unseasonably chilly in the eastern part of the United States this week, due to a peculiar weather pattern that’s causing deep waves in the jet stream. One of those big waves is bringing cool air down from the northeast Pacific and the Arctic. This…

Why is Antarctic sea ice expanding?

By Laura Naranjo (NSIDC), first published January 31, 2014. In the following  an edited version, reposted here with permission. Antarctic sea ice is ruled by very different systems than Arctic sea ice. The reasons behind this increase are complex, and several recent studies show that scientists are still trying to understand them. Ice and wind Atmospheric…

Jason Box explains the unprecedented Winter 2014 (Northern Hemisphere)

ClimateCrocks: Dr. Jason Box, Chief Scientist of the Dark Snow Project, and a researcher formerly of the Byrd Polar Center at Ohio State, now with the Geological Survey of Denmark and Greenland – has spent the last week in Svalbard, a group of Islands high in the arctic, controlled by Norway. I asked him to chat by…

Dr. Richard Rood on Atmospheric Cycles

ClimateCrocks: Dr. Richard  Rood is a Veteran NASA Atmospheric Scientist, currently teaching at theUniversity of Michigan’s College of Atmopheric, Oceanic, and Space Sciences. Dr. Rood also posts regularly on Dr. Jeff Master’s Weather Underground. I sat down with Dr. Rood not long ago to talk about developments in climate science. This is a small, but significant…

BBC: Wavier Jet Stream ‘May Drive Weather Shift’

BBC: New research suggests that the main system that helps determine the weather over Northern Europe and North America may be changing. The study shows that the so-called jet stream has increasingly taken a longer, meandering path. This has resulted in weather remaining the same for more prolonged periods. The work was presented at the…

UK Flooding and the Science of Climate Change

Climate change is the ultimate challenge but as a matter of fact most governments and the media are still sleepwalking and are in denial for the most part. In the video below “Influence of Arctic sea ice on European summer precipitation (2013)”, Dr James Screen explains the impacts of climate change on farming  and flooding.…

Hot Alaska, Cold Georgia: How The Shifted Polar Vortex Turned Winter Upside-Down

By Ryan Koronowski (Think Progress): It’s easy to forget about other places in the world, or even in your own country, when you’re out shoveling snow, or people who are homeless suffer the worst of urban cold snaps, or harbor seals on the Hudson River ride ice floes, or your city shuts down due to amismanaged winter storm. The polar vortex, normally…

If There’s Global Warming … Why Is It So Cold?

It’s that time of year, the perennial “It’s snowing so it can’t be warming” season – or, as scientists call it, “winter”. Depends on where you’re standing, actually — I stood on a frozen lake with Dr. Jeff Masters to discuss the current planetary changes, but at the same time, in Alaska, historic warm temperatures…

NASA’s AIRS Sees Polar Vortex Behind U.S. Big Chill


Published January 2014: The chilling weather phenomenon that hit much of the U.S. in January is explained by scientist Eric Fetzer using data from NASA’s AIRS instrument.

Climate Matters: Weather Systems Stalling


“It seems like the weather, increasingly, is getting stuck.” Meteorologist Paul Douglas explains this weather pattern that seems to be stuck in a rut. Swells, drought and a polar vortex! Learn how it is impacting everywhere from Hawaii/Alaska all the way to Europe. The Winter Olympics may feel more like the Summer Olympics!

Polar Vortex to Collapse and Flood Eastern US With Arctic Air

Robert Scribbler: Well, the forecast is in. And it appears we are about to receive yet another helping of winter weather extremes driven by human caused climate change. ECMWF and NOAA models both show mid and upper level warmth increasing over the polar region. This warmth, over the next week, will invade toward the surface, collapsing the…