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Tag: Tipping Points

Cold Jumps Arctic ‘Fence,’ Stoking Winter’s Fury

Judging by the weather, the world seems to have flipped upside down. For two winters running, an Arctic chill has descended on Europe, burying that continent in snow and ice. Last year in the United States, historic blizzards afflicted the mid-Atlantic region. This winter the Deep South has endured unusual snowstorms and severe cold, and [...]

Methane release ‘looks stronger’ seeping from the Arctic seabed.

Scientists have uncovered what appears to be a further dramatic increase in the leakage of methane gas that is seeping from the Arctic seabed. Methane is about 20 times more potent than CO2 in trapping solar heat. The findings come from measurements of carbon fluxes around the north of Russia, led by Igor Semiletov from [...]

We are entering a new climate era, where the new norm is unpredictable change.

Lester Brown of the Earth Policy Institute and Author of Plan B 4.0: Mobilizing to Save Civilization We are entering a new era, one of rapid and often unpredictable climate change. In fact, the new climate norm is change. The 25 warmest years on record have come since 1980. And the 10 warmest years since [...]

Water Flowing Through Ice Sheets Accelerates Warming, Could Speed Up Ice Flow

Melt water flowing through ice sheets via crevasses, fractures and large drains called moulins can carry warmth into ice sheet interiors, greatly accelerating the thermal response of an ice sheet to climate change, according to a new study involving the University of Colorado at Boulder. The new study showed ice sheets like the Greenland Ice [...]

Arctic Report Card: Region Continues to Warm at Unprecedented Rate

ScienceDaily (Oct. 22, 2010) — The Arctic region, also called the “planet’s refrigerator,” continues to heat up, affecting local populations and ecosystems as well as weather patterns in the most populated parts of the Northern Hemisphere, according to a team of 69 international scientists. The findings were released Oct. 21, 2010 in the Arctic Report [...]

Arctic Ice in Death Spiral

Greenhouse Neutral Foundation comment – This report foreshadows a very grim future for all. We have no further time to waste in de-carbonizing our global activities. We must gather together as a single voice and demand our political masters’ act now! UXBRIDGE, Sep 20 (IPS) – The carbon dioxide emissions from burning fossil fuels have [...]

The largest chunk of ice in the Northern Hemisphere is on the move

The largest chunk of ice in the Northern Hemisphere is on the move – at a four-hundredths-of-a-kilometer an hour clip. Satellite imagery from the European Space Agency shows that a massive iceberg that calved from Greenland’s Petermann Glacier on August 4 has cruised into the Nares Strait, putting 28 kilometers between it and its source. [...]

Am I an activist for caring about my grandchildren’s future? I guess I am

Greenhouse Neutral Foundation comment – I have long admired James Hansen as a person who cares for the future of all that we share our fragile planet with. The answers to all of the significant challenges we face in the imminent future is in OUR hands. We need to accept this moral responsibility. The following [...]

Greenland ice sheet faces ‘tipping point in 10 years’

Scientists warn that temperature rise of between 2C and 7C would cause ice to melt, resulting in 23ft rise in sea level The entire ice mass of Greenland will disappear from the world map if temperatures rise by as little as 2C, with severe consequences for the rest of the world, a panel of scientists [...]

Massive ice island breaks off Greenland

August 7th — A piece of ice four times the size of Manhattan island has broken away from an ice shelf in Greenland, according to scientists in the U.S. The 260 square-kilometer (100 square miles) ice island separated from the Petermann Glacier in northern Greenland early on Thursday, researchers based at the University of Delaware [...]