Warming climates intensify greenhouse gas given out by oceans Date: June 8, 2014

Rising global temperatures could increase the amount of carbon dioxide naturally released by the world's oceans, fuelling further climate change, a study suggests.

Rising global temperatures could increase the amount of carbon dioxide naturally released by the world's oceans, fueling further climate change, a study suggests. Scientists studied a 26,000-year-old sediment core to find out how the ocean's ability to take up atmospheric CO2 has changed over time, and found that when silicon was least abundant in ocean waters corresponded with relatively warm climates, low levels of atmospheric iron, and reduced CO2 uptake by the oceans' plankton.

http://www.sciencedaily.com/releases/2014/06/140608152726.htm

San Angelo, Texas, Storms Cause Major Damage; NWS Office Has Communications Problem

Severe weather hammered the San Angelo, Texas, area Wednesday night, spawning at least one tornado, damaging buildings and leaving nearly half the population without power.

A supercell thunderstorm raked through the north and east sides of the city of almost 100,000 Wednesday night, said weather.com meteorologist Jon Erdman. Damaging winds from the supercell's rear-flank downdraft, with a measured gust to 73 mph at a Weather Underground station, led to some structural damage and widespread power outages.

http://www.weather.com/safety/thunderstorms/san-angelo-texas-storms-20140612

Wisconsin Tornadoes: 6 Twisters Confirmed, UW-Platteville Coach Moves 150 Children to Safety During Storms

The National Weather Service said six tornadoes hit Wisconsin late Monday night and early Tuesday morning as severe storms moved from the Plains to the Midwest.

An EF3 tornado with winds as high as 140 mph hit the town of Verona, near Madison, at around midnight Tuesday morning, heavily damaging an elementary school. Earlier in the evening, a confirmed high-end EF2 tornado hit the town of Platteville, southwest of Madison. Winds in that twister were as high as 120 mph, leaving damage at the UW-Platteville campus but no injuries.

An EF1 tornado was confirmed near Platteville Golf and Country Club, and the NWS said it identified three other tornadoes – two in Green County and one more in far northwestern Madison.

"This was a nightmare scenario: Rotation embedded in a squall line of severe thunderstorms, at night, after many may have went to sleep," said weather.com senior meteorologist Jon Erdman. "There had not been a single tornado anywhere in the Badger State so far in 2014, the latest wait for the year's first tornado, there, since 1997."

http://www.weather.com/news/tornado-central/madison-wisconsin-tornado-20140617

South Dakota, Minnesota and Iowa Flooding: State of Emergency Declared in Sioux Falls

The same system that brought devastating tornadoes to Pilger, Nebraska, Monday night into Tuesday doused areas near the South Dakota-Iowa-Minnesota state line, leading to potentially historic flooding.

Gov. Dennis Daugaard declared a state of emergency for South Dakota on Tuesday. Daugaard also ordered the opening of the State Emergency Operations Center to monitor the effects of the torrential rains and coordinate the state's response.

http://www.weather.com/news/tornado-central/sioux-falls-south-dakota-minnesota-iowa-flooding-20140617

Tornado Threat High in the Dakotas, Severe Storms Pushing into the Northeast

BREAKING: We are covering the current tornado threat, including the damage aftermath within North and South Dakota, within the live blog ticker below.

Severe Weather Live Ticker: Latest Updates

All tornado warnings, along with other relevant tweets from The Weather Channel and local National Weather Service offices in current threat areas, will appear here.  

Information updates automatically; no need to reload or refresh your browser. Time stamps on the left are in Eastern time; subtract one hour for Central time and two hours for Mountain time. For complete warning information and radar links, scroll above to see the radar imagery and clickable severe weather alerts links.

http://www.weather.com/news/tornado-central/severe-weather-tracker-page

Arctic warming linked to fewer European and U.S. cold weather extremes, new study shows

Date:

June 15, 2014

Source:

University of Exeter

Summary:

Climate change is unlikely to lead to more days of extreme cold, similar to those that gripped the United States in a deep freeze last winter, new research has shown. The Arctic amplification phenomenon refers to the faster rate of warming in the Arctic compared to places further south. It is this phenomenon that has been linked to a spike in the number of severe cold spells experienced in recent years over Europe and North America.

See Cape Cod's Coastline Change Dramatically In 30 Years

Stand on a beach for any length of time and you'll get a brief glimpse into how winds, waves and tides shape the coastline bit by bit, day by day. But thanks to NASA satellites, we can see just how dramatically those changes are when viewed over a longer time span.

Earlier this week, the NASA Earth Observatory featured a look at the Cape Cod coastline in its World of Change series, which tells the story of how the planet is changing rapidly before our eyes through satellite photos taken over years, sometimes decades – of deforestation in the Amazon, the shrinking Aral Sea and mountaintop mines in West Virginia, to name a few.

As NASA notes in its story accompanying the satellite photos, the patterns of interaction among the sand, wind and water shown in these photos have been shaping the contours of Cape Cod's beaches – known as the Nauset-Monomoy barrier islands – for more than 300 years:

"Barrier beaches and spits are constantly raised up, shifted, and torn down by the natural ebb and flow of waves, currents, winds, and tides. Storms can reshape them abruptly and dramatically. Hooks form, inlets open and close, and beaches slowly march across their back bays and lagoons toward the mainland, as if seeking shelter from the full force of the ocean. This process allows them to naturally march upwards as sea levels rise."