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In line with the forecasts from experts and international agencies in the first seven months of this year the world experienced unusual climatic catastrophes including heat waves in Europe, snow falls in Africa and record floods in Asia according to the latest report from the United Nations Meteorological Organization. Besides the extreme meteorological phenomena the World Meteorological Organization underlined the high temperatures recorded.
The WMO Panel on Climate Change (IPCC) notes an increasing trend in extreme events observed during the last 50 years. IPCC further projects it to be very likely that hot extremes, heat waves and heavy precipitation events will continue to become more frequent.
www.mercopress.com...
Originally posted by mikesingh
Seven months of unusual global climatic catastrophes
In line with the forecasts from experts and international agencies in the first seven months of this year the world experienced unusual climatic catastrophes including heat waves in Europe, snow falls in Africa and record floods in Asia according to the latest report from the United Nations Meteorological Organization. Besides the extreme meteorological phenomena the World Meteorological Organization underlined the high temperatures recorded.
The WMO Panel on Climate Change (IPCC) notes an increasing trend in extreme events observed during the last 50 years. IPCC further projects it to be very likely that hot extremes, heat waves and heavy precipitation events will continue to become more frequent.
www.mercopress.com...
Originally posted by St Udio
the last post by 'queenannie38' , especially the last sentence
"thank goodness that is on an uninhabited continent"
i believe your mistaken, which is pretty strange for you,
in saying that Antarctica is uninhabited,
there's many, seals & penguins that are native to the continent...
Originally posted by OzWeatherman
I dont know about this whole apocalypse thing. I work in the weather industry and it is true that temperatures are on the rise and storms are becoming more severe but less frequent but how do we know that this isn't a normal thing for the planet.
Weather records here in Australia only go back one hundred odd years and its not much longer for other countries.
Originally posted by queenannie38
Why is the ocean's conveyor belt stopped?
Will it remain stopped?
No. Mother Earth is completely in control of her processes and all is well. Things readjust and this is for renewal. Spring cleaning, one might say.
Originally posted by St Udiothese 'Alfven Waves" might be the cause & reason for the Earth's changing climate...
in fact they may be the cause & reason for he apparent warming of all the solar systems planets
"In each ocean basin substantial temperature changes are occurring at much deeper depths than we previously thought. This is just one more piece of the puzzle to understanding the variability of the earth's climate system," said NOAA administrator D. James Baker. "Since the 1970's, temperatures at the earth's surface have warmed, Arctic sea ice has decreased in thickness, and now we know that the average temperature of the world's oceans has increased during this same time period."
"It is possible that ocean heat content may be an early indicator of the warming of surface, air and sea surface temperatures more than a decade in advance," said Levitus. "For example, we found that the increase in subsurface ocean temperatures preceded the observed warming of surface air and sea surface temperatures, which began in the 1970's."
The rate of warming is approximately 0.5 degrees Celsius per decade, and the trend has been present since at least the late 1940s. Overall in the [Antarctic] Peninsula, extent of seven ice shelves has declined by a total of about 13,500 km2 since 1974.
Could an extra warm summer cause an earthquake in your backyard? Probably not... unless you live in Alaska. You probably know that friction in the earth's crust causes earthquakes, but did you know that a little extra sunshine might increase your chances of experiencing an earthquake if you live where glaciers are present? That's because as glaciers melt, they retreat and lighten the load on massive rocky slabs of Earth's crust called tectonic plates. This frees the plates up to move against each other and cause the friction needed to make earthquakes.
Highly sensitive temperature probes moving continuously across the bottom of the volcano showed signs of geothermal heating of seawater, according to the agency.
THE WEST ANTARCTIC ICE SHEET SITS IN A BASIN BOUNDED BY THE TRANSANTARCTIC MOUNTAINS TO THE SOUTH AND MARIE BYRD LAND TO THE NORTH. THE BEDROCK IN THE BASIN IS BELOW SEA level, which has led researchers to worry that the ice sheet may one day collapse into the sea; if it did, the global sea level would rise about 20 feet, and coastal cities would be flooded. As it happens, the basin is also a rift valley--a place where Earth's crust is being stretched apart and hot rock from the mantle is rising to the surface. Last February a team of geophysicists announced that they had found an active volcano in the basin, under more than a mile of ice.
What does the presence under the ice of volcanoes--and more generally, of hot crust--say about the future of the West Antarctic ice sheet? The answer isn't as obvious as you might think. The heat won't melt the whole ice sheet; there is too much ice and not enough heat. But toward the western edge of the ice sheet, in the region of the volcano, there is enough heat to melt the base of the ice.
Duncan Wingham at University College London and Andrew Shepherd at Edinburgh University reviewed five years of glacier observations in the Antarctic and identified the four glaciers as retreating in unison, driving the thinning of the ice sheets and representing the greatest risk to sea levels.
The Pine Island and Thwaites glaciers on the western Antarctic ice sheet, and the Totten and Cook glaciers on the eastern Antarctic ice sheet are now sliding into the water between 20% and 100% faster than in recent decades, the researchers report.
Despite its size, Antarctica ranks below all other regions in number of dated eruptions, and only the Pacific and Atlantic Ocean regions have fewer historically active volcanoes. It's historical record is brief, and 75 percent of its eruptions are from this century. Precise dating of past eruptions is difficult -- much of the landscape is glacier-covered, travel is daunting, and the wood needed for radiocarbon dating does not grow in this extreme climate -- and the region has the highest proportion of volcanoes with uncertain status.