Showing posts with label Enviornment. Show all posts
Showing posts with label Enviornment. Show all posts

Monday, June 25, 2012

Rising sea level puts US Atlantic coast at risk



The sea level on a stretch of the US Atlantic coast that features the cities of New York, Norfolk and Boston is rising up to four times faster than the global average, a report said Sunday. This increases the flood risk for one of the world's most densely-populated coastal areas and threatens wetland habitats, said a study reported in the journal Nature Climate Change. Since about 1990, the sea level along the 1,000-kilometre (620-mile) "hotspot" zone has risen by two to 3.7 millimetres (0.08 to 0.15 inches) per year. The global rise over the same period was between 0.6 and one millimetre per year, said the study by the US Geological Survey (USGS).


If global temperatures continue to rise, the sea level on this portion of the coast by 2100 could rise up to 30 centimetres over and above the one-metre global surge projected by scientists, it added. The localised acceleration is thought to be caused by a disruption of Atlantic current circulation. The hotspot stretches from Cape Hatteras, Northern Carolina to north of Boston, Massachusetts and also includes other big cities like Philadelphia and Baltimore. Another study has shown a one-metre sea level rise to increase New York's severe flooding risk from one incident every century to one every three years. It might be a good idea to move inland from the coast. I would also advise more of my readers to keep an close eye on the climate over the remainder of the year. AFP / MadOne

Sunday, June 24, 2012

Parts of Mars Interior as Wet as Earth's



The interior of Mars holds vast reservoirs of water, with some spots apparently as wet as Earth's innards, scientists say. The finding upends previous studies, which had estimated that the Red Planet's internal water stores were scanty at best — something of a surprise, given that liquid water apparently flowed on the Martian surface long ago. The scientists examined two Martian meteorites that formed in the planet's mantle, the layer under the crust. These rocks landed on Earth about 2.5 million years ago, after being blasted off the Red Planet by a violent impact. Using a technique called secondary ion mass spectrometry, the team determined that the mantle from which the meteorites derived contained between 70 and 300 parts per million (ppm) of water. Earth's mantle, for comparison, holds roughly 50-300 ppm water, researchers said.

"The results suggest that water was incorporated during the formation of Mars and that the planet was able to store water in its interior during the planet’s differentiation."  Some of this water apparently made its made to the surface in the ancient past. NASA's Spirit and Opportunity rovers, which landed on the Red Planet in 2004, have found plenty of evidence that Mars was far warmer and wetter billions of years ago than it is today. The two golf-cart-size robots have even spotted signs of ancient hydrothermal systems, suggesting that some places on the Red Planet once had both water and an energy source — two key ingredients for the existence of life as we know it.


While the new results should help scientists better understand Mars and its history, they could also shed light on the evolution of large, rocky bodies in a more general sense, researchers said.
"Not only does this study explain how Mars got its water, it provides a mechanism for hydrogen storage in all the terrestrial planets at the time of their formation," lead author Francis McCubbin, of the University of New Mexico, said in a statement. Space.com / MadOne

Wednesday, June 6, 2012

EPA drones spy on farmers in Nebraska and Iowa


The Environmental Protection Agency has been accused of violating the privacy of cattle farmers in Nebraska and Iowa by using drones to spy on them. Last week, Nebraska’s congressional delegation submitted a joint letter to EPA Administrator Lisa Jackson expressing concerns about the surveillance and questioning its legality. The EPA responded that the use of drones is legal and cost-effective. 


The surveillance has so far covered Region 7 (Iowa, Nebraska, Kansas and Missouri), but has focused on Nebraska and Iowa because of the high concentration of livestock feeding operations in a watershed that has a history of contamination. “Nebraskans are rightfully skeptical of an agency which continues to unilaterally insert itself into the affairs of rural America,” The agency said that “courts, including the Supreme Court, have found similar types of flights to be legal (for example to take aerial photographs of a chemical manufacturing facility)” and that the EPA “would use such flights in appropriate instances to protect people and the environment from violations of the Clean Water Act”. So far, seven flights have taken place over Iowa, and nine over Nebraska. Yahoo / MadOne

Sunday, April 1, 2012

Scientists warn of 'emergency on global scale'


Leading scientists on Thursday called on the upcoming Rio Summit to grapple with environmental ills that they said pointed to "a humanitarian emergency on a global scale." In a "State of the Planet" declaration issued after a four-day conference, the scientists said Earth was now facing unprecedented challenges, from water stress, pollution and species loss to spiralling demands for food.


"The continuing function of the Earth system as it has supported the wellbeing of human civilisation in recent centuries is at risk," said the statement issued at the "Planet Under Pressure" conference. "These threats risk intensifying economic, ecological and social crises, creating the potential for a humanitarian emergency on a global scale." "Climate change, the financial crisis and food, water and energy security threaten human wellbeing and civilisation as we know it."  "Climate change, the financial crisis and food, water and energy security threaten human wellbeing and civilisation as we know it."


These changes have brought stability and innovation but created a system vulnerable to sudden stress, as the global financial meltdown and surge in food prices had shown. Existing international arrrangements are not dealing quickly enough with current global challenges such as climate change and biodiversity loss. It called for a "polycentric approach" for planetary stewardship, meaning a diverse partnership between local, national and regional governments that also includes business and grassroots groups.


Wednesday, September 7, 2011

Tanks test infra-red invisibility cloak



Tanks could soon get night time invisibility thanks to a cloaking device that masks their infra-red signature. Developed by BAE Systems, the Adaptiv technology allows vehicles to mimic the temperature of their surroundings. It can also make a tank look like other objects, such as a cow or car, when seen through heat-sensitive ‘scopes. Researchers are looking at ways to make it work with other wavelengths of light to confer true invisibility.

Hiding out
The hi-tech camouflage uses hexagonal panels or pixels made of a material that can change temperature very quickly. About 1,000 pixel panels, each of which is 14cm across, are needed to cover a small tank. The panels are driven by on-board thermal cameras that constantly image the ambient temperature of the tank’s surroundings. This is projected on to the panels to make it harder to spot. The cameras can also work when the tank is moving. InfoWars

Thursday, September 1, 2011

Huge chunk of ice breaks off Greenland glacier


A block of ice four times the size of Manhattan has split off from a Greenland glacier and melted--an event so dramatic that it's shocked the scientists who study the area. Scientists now worry that another block of ice--about two times the size of Manhattan--is preparing to break off, according to the New York Times. Greenland's ice sheet may be melting at the rate of 400 billion tons per year. According to MSNBC, Greenland has lost "592.6 square miles of ice between 2000 and 2010." The break happened in 2010, but this is the first time photos have been available. MadOne

Sunday, August 7, 2011

Power companies prepare as solar storms set to hit Earth


NEW YORK (Reuters) - Three large explosions from the Sun over the past few days have prompted U.S. government scientists to caution users of satellite, telecommunications and electric equipment to prepare for possible disruptions over the next few days. "The magnetic storm that is soon to develop probably will be in the moderate to strong level," said Joseph Kunches, a space weather scientist at the Space Weather Prediction Center, a division of the U.S. National Oceanic and Atmospheric Administration (NOAA). 

He said solar storms this week could affect communications and global positioning system (GPS) satellites and might even produce an aurora visible as far south as Minnesota and Wisconsin. An aurora, called aurora borealis or the northern lights in northern latitudes, is a natural light display in the sky in the Arctic and Antarctic regions caused by the collision of energetic charged particles with atoms in the high altitude atmosphere. Major disruptions from solar activity are rare but have had serious impacts in the past.

In 1989, a solar storm took down the power grid in Quebec, Canada, leaving about six million people without power for several hours. The largest solar storm ever recorded was in 1859 when communications infrastructure was limited to telegraphs. The 1859 solar storm hit telegraph offices around the world and caused a giant aurora visible as far south as the Caribbean Islands. Some telegraph operators reported electric shocks. Papers caught fire. And many telegraph systems continued to send and receive signals even after operators disconnected batteries, NOAA said on its website. A storm of similar magnitude today could cause up to $2 trillion in damage globally, according to a 2008 report by the National Research Council.

Wednesday, June 29, 2011

Extreme Weather On the Horizon


Epic floods, massive wildfires, drought and the deadliest tornado season in 60 years are ravaging the United States, with scientists warning that climate change will bring even more extreme weather. The human and economic toll over just the past few months has been staggering: hundreds of people have died, and thousands of homes and millions of acres have been lost at a cost estimated at more than $20 billion. And the United States has not even entered peak hurricane season

Climate change could bring less tornadoes, because while a warmer atmosphere will absorb more precipitation, causing more storms, it could also reduce the wind shear that builds storm intensity when cold and warm fronts collide. However, the intensity of future droughts, heat waves, storms and floods is expected to rise drastically if greenhouse gas emissions don't stabilize soon, said Michael Mann, a scientist at Penn State University. "Even a couple degree warming can make a 100-year event a three-year event," Mann, the head of the university's earth systems science center, told AFP.

More extreme weather is expected in the coming months, said Jon Gottschalck, head of forecast operations at NOAA's climate prediction center. 


Wednesday, May 11, 2011

Flooded river taking aim at Mississippi Delta


The river was taking aim at one of the most poverty-stricken parts of the country after cresting Tuesday at Memphis, Tenn., just inches short of the record set in 1937. Some low-lying Memphis neighborhoods were inundated, but the city's high levees protected much of the rest of Memphis.


Downstream in Louisiana, inmates were filling sandbags to protect property in Cajun swamp communities that could be flooded if engineers open a spillway to protect the more densely populated Baton Rouge area. Fear was high among residents there. Over the past week or so in the Delta, floodwaters along the rain-swollen river and its backed-up tributaries have already washed away crops, forced many to seek higher ground and closed some of the dockside casinos that are vital to the state's economy.

The state gambling industry is taking a hit: All 19 casinos along the river will be shut down by the end of the week, costing governments $12 million to $13 million in taxes per month, authorities said. That will put some 13,000 employees temporarily out of work. But the worst is yet to come, with the crest expected over the next few days. The damage in Memphis was estimated at more than $320 million as the serious flooding began, and an official tally won't be available until the waters recede. ( AP )

Wednesday, April 27, 2011

At least 11 dead as storms pound South for 2nd day


JEFF BUSBY PARK, Miss. – A wave of thunderstorms with winds blowing near hurricane force strafed the South Wednesday, killing at least 11 people from Arkansas to Alabama, including a father struck by a tree while protecting his daughter at a Mississippi campsite.

The system laced with suspected tornadoes spread destruction Tuesday night and Wednesday from Texas to Georgia. An earlier flare-up of storms this week had already killed 10 people in Arkansas and one in Mississippi. Forecasters warned that even worse weather could be on its way. 

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Tuesday, April 26, 2011

Heavy rains cause 1 death, landslides in Rio


RIO DE JANEIRO – Heavy rains have caused floods, blackouts, landslides and at least one death in Rio de Janeiro. The city's emergency operations center reports on its website that the storm Monday night flooded several downtown streets and the Maracana stadium, site of the final game of the 2014 World Cup and major ceremonies of the 2016 Olympic games.

The website report says that several poor hillside communities suffered minor landslides, with no deaths.
An official from the fire department said a body was found in a flooded area downtown. The official could not be quoted by name under departmental policy. The electrical utility company said a tree fell, leaving the city's west side without power.

Thursday, April 21, 2011

Fluoride Spill At Illinois Water Facility

Hydrofluorosilicic Acid is deadly, and it’s an ingredient in most U.S. fluoridated water municipalities.



A recent chemical spill at a water treatment facility in Rock Island, Ill., required the assistance of an emergency relief crew decked in the very same type of hazmat suits being worn by workers at the Fukushima Dai-Ichi nuclear plant in Japan. Except instead of radiation, the leaked chemical at the water plant was actually hydrofluorosilicic acid, a chemical fluoride component commonly added to drinking supplies for the stated purpose of preventing cavities. This fluoride chemical is so hazardous that it actually began to burn through parking lot cement in Rock Island before emergency crews arrived on the scene.

 

According to reports from WQAD News 8 in Moline, a tanker truck delivering the fluoride began to overflow, leaking the chemical directly onto the parking lot where it spilled down towards the street. And before emergency crews arrived on the scene in full hazmat suits and gas masks, the fluoride had actually begun to burn a hole right through the concrete.

Japan’s ocean radiation hits 7.5 million times legal limit


TOKYO — The operator of Japan’s stricken Fukushima nuclear plant said Tuesday that it had found radioactive iodine at 7.5 million times the legal limit in a seawater sample taken near the facility, and government officials imposed a new health limit for radioactivity in fish.

The reading of iodine-131 was recorded Saturday, Tokyo Electric Power Co. said. Another sample taken Monday found the level to be 5 million times the legal limit. The Monday samples also were found to contain radioactive cesium at 1.1 million times the legal limit. The exact source of the radiation was not immediately clear, though Tepco has said that highly contaminated water has been leaking from a pit near the No. 2 reactor. The utility initially believed that the leak was coming from a crack, but several attempts to seal the crack failed.

Monday, April 11, 2011

Japan ups nuke crisis severity to match Chernobyl


TOKYO – Japan's nuclear regulators raised the severity level of the crisis at a stricken nuclear plant Tuesday to rank it on par with the 1986 Chernobyl disaster, citing the amount of radiation released in the accident. The regulators said the rating was being raised from 5 to 7 — the highest level on an international scale overseen by the International Atomic Energy Agency. However, there was no sign of any significant change at the tsunami-stricken Fukushima Dai-ichi nuclear plant.

The new ranking signifies a "major accident" with "wider consequences" than the previous level, according to the Vienna-based IAEA. "We have upgraded the severity level to 7 as the impact of radiation leaks has been widespread from the air, vegetables, tap water and the ocean," said Minoru Oogoda of Japan's Nuclear and Industrial Safety Agency.


In Chernobyl, in the Ukraine, a reactor exploded on April 26, 1986, spewing a cloud of radiation over much of the Northern Hemisphere. A zone about 19 miles (30 kilometers) around the plant was declared uninhabitable, although some plant workers still live there for short periods and a few hundred other people have returned despite government encouragement to stay away.

Wednesday, February 23, 2011

Two Large Warm Lakes Under Antarctic Ice


Antarctica has at least 145 small lakes buried under its ice and one large one called Vostok. Now scientists have found the second and third largest known bodies of subsurface liquid water there. Exotic ecosystems frozen in time may thrive in the lakes, untouched for 35 million years, scientists said. Vostok has a surface area of 5,400 square miles. One of the newfound lakes measures 770 square miles in size, or roughly the size of Rhode Island. The other is about 620 square miles. 

Both sit under more than 2 miles of ice and are about a half-mile deep based on observed differences in gravity. "Over the lakes, the pull of gravity is much weaker, so we know there must be a big hole down there," said Robin Bell, a geophysicist at the Lamont-Doherty Earth Observatory. The larger of the two is named 90ºE for its location. The other is called Sovetskaya Lake. 


The combination of heat from below and a thick layer of insulating ice above keeps the water temperature at the top of both lakes at a balmy 28.4 degrees Fahrenheit, the researchers say, despite outdoor temperatures that can drop to –112 in winter. MadOne


Saturday, January 15, 2011

NASA: Thunderstorms fire antimatter into space

Antimatter has long been viewed in science-fiction as the ultimate power source for starship engines, planet-killer weapons, other futuristic devices or the bomb planted beneath the Vatican in the novel and movie "Angels & Demons." To date, however, our experience with antimatter is largely limited to fleeting glimpses of the trails left by cosmic rays streaking through the Earth's atmosphere and short-lived antimatter particles created by high-energy collisions directed by massively powerful particle accelerators.

Naturally Occurring Terrestrial Antimatter
This week, however, NASA announced that scientists using the Fermi Gamma-ray Space Telescope have discovered that the creation of anti-matter beams may be occurring hundreds of times each day right here on Earth, or more specifically, above the Earth during ordinary thunderstorms.


Power of Thunderstorms Includes Antimatter Beams
No one who has ever been shaken down to their bones by sudden thunderclap doubts the power of a thunder storm, but antimatter? Lightning storms create a phenomenon known as terrestrial gamma-ray flashes, and it is these bursts of energy, NASA says, in which scientists believe the antimatter beams detected by the orbiting Fermi Gamma-ray Space Telescope are created. Space.com

Tianjin Eco-City In China: The Future Of Urban Development?


Green building is becoming so prevalent these days that it may not be enough to erect individual eco buildings anymore - the newest trend is entire eco-cities. Expected to be up and running in 2020, Tianjin Eco-City is one of these real-life sustainable communities, spanning 30 square kilometers and showcasing the hottest energy-saving technologies. Designed by Surbana Urban Planning Group, the city will have an advanced light rail transit system and varied eco-landscapes ranging from a sun-powered solarscape to a greenery-clad earthscape for its estimated 350,000 residents to enjoy. Huffington Post

To the north of the Lifescape, the Solarscape will act as the administrative and civic center of the Eco-City.

Demonstrating the concept of a compact, multilayered city, the Urbanscape will be the core of the Eco-City, featuring stacked programs interconnected by sky-bridges at multiple levels to make efficient use of vertical space.

An aerial view of the Urbanscape.

In contrast to the Urbanscape, the Earthscape will act as a sort of suburb of the city, with stepped architecture that will maximize public green space.

Friday, January 14, 2011

More than 500 dead in Brazil's worst flood disaster


TERESOPOLIS, Brazil (AFP) – Brazil is suffering its worst-ever natural disaster after mudslides near Rio de Janeiro this week killed more than 500 people, media compiling the deaths said Friday. Municipal officials in the Serrana region just north of Rio said at least 506 people were killed, surpassing the 437 toll from a 1967 mudslide that had been previously considered Brazil's biggest disaster. More bodies were expected to turn up as rescuers finally reached villages cut off by destroyed roads and bridges.


The G1 news outlet called it "the biggest climatic tragedy in the history of the country." In frantic efforts to locate survivors and bodies, rescuers braved the risk of further mudslides, as rain continued to fall on the waterlogged region, making it even more unstable.

Tuesday, January 4, 2011

Explorers discover spectacular caves in Vietnam

For decades, geologists have known that Vietnam is home to some of the world's most spectacular caves, many of them largely unexplored. Now husband-and-wife cavers have documented perhaps the world's largest: Hang Son Doong, big enough in places to accommodate a New York City block of skyscrapers. The cave in the Annamite Mountains contains a river and jungle (its name translates to "mountain river cave") and even its own thin clouds, and its end remains out of sight. It's part of a network of about 150 caves in central Vietnam near the Laotian border.




Thursday, December 23, 2010

Fluoride in Water Linked to Lower IQ in Children

Exposure to fluoride may lower children’s intelligence says a study pre-published in Environmental Health Perspectives, a publication of the National Institute of Environmental Health Sciences (online December 17, 2010).

Fluoride in Water Linked to Lower IQ in Children  onepixel

Fluoride in Water Linked to Lower IQ in Children  tapwater


Fluoride is added to 70% of U.S. public drinking water supplies. According to Paul Connett, Ph.D., director of the Fluoride Action Network, “This is the 24th study that has found this association, but this study is stronger than the rest because the authors have controlled for key confounding variables and in addition to correlating lowered IQ with levels of fluoride in the water, the authors found a correlation between lowered IQ and fluoride levels in children’s blood. This brings us closer to a cause and effect relationship between fluoride exposure and brain damage in children.”


“What is also striking is that the levels of the fluoride in the community where the lowered IQs were recorded were lower than the EPA’s so-called ‘safe’ drinking water standard for fluoride of 4 ppm and far too close for comfort to the levels used in artificial fluoridation programs (0.7 – 1.2 ppm),” says Connett. In this study, 512 children aged 8-13 years in two Chinese villages were studied and tested – Wamaio with an average of 2.47 mg/L water fluoride (range 0.57-4.50 mg/L) and Xinhuai averaging 0.36 mg/L (range 0.18-0.76 mg/L).