Transition Brockville archive

Tag : Arctic ice (25)

Arctic sea ice continues a trend of shrinking maximum extents

NASA Climate Change / 23 March 2018

Arctic sea ice reached its annual maximum extent on March 17, according to analysis by NASA and the National Snow and Ice Data Center. The 2018 extent reached 5.59 million square miles, only about 23,000 square miles larger than the lowest maximum on record, in 2017. This continues a trend of shrinking sea ice, with the four lowest Arctic sea ice maximum extents on record in the last four years.

Global warming and extreme cold: How one leads to the other

TheRealNews / 10 January 2018

Research on the connection between extreme weather – such as the severe cold snap that hit the US Northeast – and global warming, shows that these are intimately connected.

Arctic has warmest winter on record

The Guardian / AP / 06 March 2018

The Arctic winter has ended with more news that is worrying even the scientists who watch the effects of climate change closely.

The region experienced its warmest winter on record. Sea ice hit record lows for the time of year, new US weather data revealed on Tuesday.

“It’s just crazy, crazy stuff,” said Mark Serreze, director of the National Snow and Ice Data Center in Boulder, Colorado, who has been studying the Arctic since 1982. “These heat waves – I’ve never seen anything like this.”

Experts say what’s happening is unprecedented, part of a global warming-driven cycle that probably played a role in the recent strong, icy storms in Europe and the north-eastern US.

[ FULL ARTICLE ]

Earth’s ice is melting much faster than forecast

Garn Press / Jason E Box / 05 February 2018

While individual climate models come close to observations on this or that piece of the complex big picture, what ends up in global assessment reports intended to help guide policy decisions and national discussions of climate change are very conservative averages of dozens of models that don’t include the latest, higher sensitivity physics.

So, alas, when it comes to ice, how fast it can go and how fast the sea will rise, if I were a betting man, I’d put my money on it going faster than forecast.

[ FULL ARTICLE ]

How a warming Arctic fuels cold snaps

InsideClimate News / Bob Berwyn / 28 September 2017

When winter sets in, “polar vortex” becomes one of the most dreaded phrases in the Northern Hemisphere. It’s enough to send shivers even before the first blast of bitter cold arrives.

New research shows that some northern regions have been getting hit with these extreme cold spells more frequently over the past four decades, even as the planet as a whole has warmed. While it may seem counterintuitive, the scientists believe these bitter cold snaps are connected to the warming of the Arctic and the effects that that warming is having on the winds of the stratospheric polar vortex, high above the Earth’s surface.

[ FULL ARTICLE ]

Arctic Sea Ice minimum volumes 1979-2017

Andy Lee Robinson / 07 October 2017

Latest visualization of the startling decline of Arctic Sea Ice, showing the minimum volume reached every September since 1979, set on a map of New York with a 10km grid to give an idea of scale. It is clear that the trend of Arctic sea ice decline indicates that it’ll soon be ice-free for an increasingly large part of the year, with consequences for the climate.

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The Transition Framework

Resilience is the ability of a system or community to withstand impacts from outside. An indicator is a good way of measuring that. Conventionally, the principal way of measuring a reducing carbon footprint is CO2 emissions. However, we firmly believe that cutting carbon while failing to build resilience is an insufficient response when you’re trying to address multiple shocks such as peak oil, climate change and the economic crisis together.

— Transition U.S.
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