Large methane emission upon spring thaw from natural wetlands in the northern permafrost region

CH4 emission upon spring thaw in the high latitudes might be enhanced by the projected climate warming Abstract The permafrost carbon–climate feedback is one of the major mechanisms in controlling the climate–ecosystem interactions in northern high latitudes. Of this feedback, methane (CH4) emission from natural wetlands is critically important due to its high warming potential.…

US Midwest – Jet Stream delivers Dangerous Flash Floods – “A Water World” (August 2013)

August 8 2013: Mangled Jet Stream Delivers Four Months Worth of Rain in One Week to Missouri; Central, Eastern US to Remain Under Severe Flood Threat ABC News last night, in the below video, aptly described the hardest-hit areas as turning into ‘a water world.’ The coverage shows storm shocked residents staring in awe at…

Does Freshwater Runoff in the Arctic change Ocean Circulation to Unlock Methane Hydrate in the Deep Ocean?

Recently freshwater intake into the Arctic Circle have changed ocean currents, in the following a collection of related science, and what if freshwater currents drive warmer water into the deep ocean and unlock methane hydrates? Mechanism have been identified recently. Arctic freshwater input into the North Pacific could serve as a catalyst for methane hydrate…

Increased Methane emissions from summer Monsoon

Eastern Afghanistan and neighbouring Pakistan have been hit by torrential rain, causing floods which have killed at least 80 people. The region has suffered devastating floods during the monsoon period for the past three years. High methane in North Africa, Middle East and South Asia. The upper tropospheric methane continues to build.  The MODIS image…

Greenland Anomaly: Late Season Melt Pulse + Methane Emissions August 4th 2013

Follow ClimateState on facebook for climate research https://www.facebook.com/ClimateState Extensive Dark Snow, Very Large Melt Lakes Visible Over West Slope of Greenland as Late Season Melt Pulse Continues by robertscribbler on August 5, 2013 http://robertscribbler.wordpress.com/2013/08/05/extensive-dark-snow-very-large-melt-lakes-visible-over-west-slope-of-greenland-as-late-season-melt-pulse-continues/ Sat Image source: NSIDC http://nsidc.org/greenland-today/ Methane visualization 4th August 2013 MODIS Terra & Aqua (MODIS Combined Value-Added) Aerosol Optical Depth via…

The Late Triassic Extinction, Persistent Photic Zone Euxinia, and Rising Sea Levels

Elevated pCO2 leading to Late Triassic extinction, persistent photic zone euxinia, and rising sea levels Caroline M.B. Jaraula, Kliti Grice, Richard J. Twitchett, Michael E. Böttcher, Pierre LeMetayer, Apratim G. Dastidar and L. Felipe Opazo doi:10.1130/G34183.1 Abstract The Late Triassic mass extinction event is the most severe global warming-related crisis to have affected important extant…

NASA: Projected U.S. Temperature Changes by 2100

NASA: The average temperature across the continental U.S. could be 8 degrees Fahrenheit warmer by the end of the 21st century under a climate scenario in which concentrations of the greenhouse gas carbon dioxide rise to 800 parts per million. Current concentrations stand at 400 parts per million, and are rising faster than at any…

Why Global Warming Should Keep You Awake at Night: Dr. Jennifer Francis Gives Chilling Testimony to Congress

Via Robertscribbler: In a July 18 testimony to Congress, Dr. Jennifer Francis, an atmospheric scientist from Rutgers and key innovator to understanding how climate change has brought about dangerous alterations to the Northern Hemisphere Jet Stream, provides five compelling reasons why we should all be quite concerned about human caused global warming. They include: 1.…

Stable Antarctic Permafrost Melting Faster than Expected

University of Texas: July 24, 2013 AUSTIN, Texas — For the first time, scientists have documented an acceleration in the melt rate of permafrost, or ground ice, in a section of Antarctica where the ice had been considered stable. The melt rates are comparable with the Arctic, where accelerated melting of permafrost has become a…

Most Comprehensive Paleoclimate Reconstruction Confirms Hockey Stick

By Stefan Rahmstorf via Scilogs The past 2000 years of climate change have now been reconstructed in more detail than ever before by the PAGES 2k project. The results reveal interesting regional differences between the different continents, but also important common trends. The global average of the new reconstruction looks like a twin of the…

Does Sea Ice loss create the condition for an emerging permanent El Nino state?

Recently Doug asked: “…my question is, how far could this phenomenon go? What is the “end” state? Is it possible for example that we could find the jet stream staying in place for months at a time, years, decades? How wavy could this waviness become?” A main theme of Sea ice loss seems to be…

Understanding the long-term carbon-cycle: weathering of rocks – a vitally important carbon-sink

By John Mason / SkepticalScience   above: the processes of the long-term carbon-cycle that this post explores. Graphic: jg. This post delves into the long-term carbon cycle that involves the interactions of the atmosphere with rocks and oceans over many millions of years. Because of its length, I’ve broken it up into bookmarked sections for…

A Looming Climate Shift: Will Ocean Heat Come Back to Haunt us?

By Rob Painting / SkepticalScience, June 24, 2013: Key Points: Despite a large increase in heat being absorbed by the Earth’s climate system(oceans, land & ice), the first decade of the 21st century saw a slowdown in the rate of global surface warming (surface air temperatures). A climate model-based study, Meehl (2011), predicted that this…