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U.S. government officials urged residents of a Wyoming farming community near natural gas drilling sites not to use private well water for drinking or cooking because of chemical contamination. "Sample results indicate that the presence of petroleum hydrocarbons and other chemical compounds in groundwater represents a drinking water concern," the Environmental Protection Agency said in a statement about tests of 19 water wells around the town of Pavillion. The Wyoming investigation precedes a national study by the EPA into the safety of the drilling technique known as hydraulic fracturing or "fracking", in response to concern in Congress and in some communities near gas rigs in many states that human health is threatened by the process.

The geography of Indonesia is dominated by volcanoes that are formed due to subduction zones between the Eurasian plate and the Indo-Australian plate. Some of the volcanoes are notable for their eruptions, for instance, Krakatau for its global effects in 1883, Lake Toba for its supervolcanic eruption estimated to have occurred 74,000 Before Present which was responsible for several years of cold of volcanic winter, and Mount Tambora for the most violent eruption in recorded history in 1815. Indonesia's Mount Sinabung has recently erupted, two days after it sprang back into life after over 400 years of inactivity.

Ongoing investigations of sites within our National Conservation Lands in the Southwest and southern California are uncovering evidence of cultures and traditions dating back thousands of years. These sites are providing a one-of-a-kind opportunity to research, study, and assess how these different cultures lived and adapted. Something new is being found all the time. Yet, most have never heard about these efforts, let alone the sites and the cultural treasures they contain. One unit within the National Conservation Lands, Canyons of the Ancients in Colorado, has been focal point of these research efforts. It has by far the greatest known concentration of archeological sites in the nation – 6,400 so far -- including cliff dwellings, villages, great kivas, and rock art. But it is not alone.

The signs are all around. Many places in the world show degradation of the air, water, and soil. Species becoming extinct as natural habitats are being destroyed. The emissions of greenhouse gases that can alter the planet's climate are unacceptable. All the environmental issues put together amount to a very serious threat to human welfare. Yet at the same time, all accepted measures of well-being show that, on average, quality of life is improving around the globe. How does an environmentalist call society into action under such conditions?

Today NOAA reopened 4,281 square miles of Gulf waters off western Louisiana to commercial and recreational fishing. The reopening was announced after consultation with FDA and under a re-opening protocol agreed to by NOAA, the FDA, and the Gulf states. On July 18, NOAA data showed no oil in the area. Light sheen was observed on July 29, but none since. Trajectory models show the area is at a low risk for future exposure to oil, and fish caught in the area and tested by NOAA experts have shown no signs of contamination.

As part of a study for the Census of Antarctic Marine Life (CAML), scientists from British Antarctic Survey (BAS) analysed sea-bed colonies of bryozoans from coastal and deep sea regions around the continent and from further afield. They found striking similarities in particular species of bryozoans living on the continental shelves of two seas -- the Ross and Weddell -- that are around 1,500 miles apart and separated by the West Antarctic Ice Sheet.

August 31, 2010 – The U.S. EPA and Department of Transportation today proposed two new fuel economy labels for passenger vehicles and light trucks, both of which change the way fuel efficiency information is communicated and includes detailed information about vehicles’ greenhouse gas emissions. The first label design (see Image) proposed features a letter grade which communicates the vehicles overall fuel economy and greenhouse gas emissions performance. It also provides consumers an estimate of the expected fuel cost savings over five years compared to an average gasoline-powered vehicle of the same model year.

The National Oceanic and Atmospheric Administration (NOAA) reopened 4,281 square miles of Gulf waters off western Louisiana to commercial and recreational fishing. The reopening was announced after consultation with FDA and under a re-opening protocol agreed to by NOAA, the FDA, and the Gulf states. On July 18, NOAA data showed no oil in the newly reopened area. Light sheen was observed on July 29, but none since. Trajectory models show the area is at a low risk for future exposure to oil, and fish caught in the area and tested by NOAA experts have shown no signs of contamination.

The horseshoe crab is one of the most ancient animals on the planet today. They have survived massive upheavals throughout the Earth's history and have remained intact and unchanged. Recently their numbers have been in decline, and this is thought to be due to coastal habitat destruction and over-harvesting; they are often used as bait, in fertilizer, or by pharmaceutical companies. However, new research from the US Geological Survey (USGS) indicates that their population size also parallels changes in the climate. With predicted climate change in the future, their numbers may continue to decline.

From June 1 through Nov. 30 each year, the coastal United States comes under threat from the ferocious winds and floodwaters of the hurricanes that form in the Atlantic Ocean basin. While Katrina is the most remembered of these swirling storms — its name now infamous — it certainly isn't alone in causing significant death and destruction to areas of the United States. Following are eight of the most destructive storms in recorded U.S. history from 1900 until present day.

Let's say you have a basic wood-burning fireplace. Charming as it may be, this old-fashioned device pollutes the air and sends a large amount of its heat roaring out the chimney. But there's no need to get rid of your old fireplace. You can insert an energy-efficient gas-burning fireplace. Many models produce the same comforting yellow-orange flames that you enjoy in a wood fireplace and even contain "logs" made of fireproof material so realistic you would have to look closely to tell the difference. And you don't have to bother with wood and ashes.

Every year Vancouver resident Stephen Ottridge takes hamburgers or steak to his street's annual summer block party. This year, against the backdrop of what looks to be the biggest sockeye salmon run in almost a century in the nearby Fraser River, he arrived with a salmon large enough to fill the whole barbecue. "There is a cornucopia of salmon this year, so we decided to treat the block to some," Ottridge said from the city on Canada's Pacific Coast, where marine experts are both puzzled and delighted by the unexpected glut of the bright-red, succulent fish.

There are a lot of things that can go into the ground water. The key is whether what goes in will readily biodegrade and if not can it harm you or the environment. In the first large study to track the fate of a wide range of antibiotics given to dairy cows, University of California (UC) Davis scientists found that the drugs routinely end up on the ground and in manure lagoons, but are mostly broken down before they reach groundwater. Note that antibiotics are given to sick cows who are isolated from the regular milking herd until the antibiotic is absent from their system.

ENN affiliate Izzitgreen has selected these offerings specially for ENN readers. Izzitgreen is a blog that helps you stay informed about the latest, coolest, most innovative green products available. A portion of the proceeds from the sales of these items through ENN will go to "e"inc. It's that time of year when students of all ages head back to the classroom. To help students do everything from staying organized to getting their lunches, books, and other supplies to their temples of learning in an eco-sustainable way, our partner IzzitGreen has found a couple of cool, environmentally friendly products to chose from this fall. Ecozoo Organic Backpack Designed for kids heading off to school for the first time, the versatile Ecozoo Organic Backpack is a neat functional backpack disguised as an adorable toy. It will easily hold any preschool item and do so in a backpack that has an adorable eco-friendly animal design. Made with organic cotton canvas the Ecozoo Organic Backpack is durable, machine washable, and extremely lightweight. The dyes used are non-toxic; the wood accents are sustainable; and any plastic contained has been recycled. Pick between an Elephant, Panda, Pig, or Puppy. Click on http://izzitgreen.com/ecozoo-organic-backpack.html to see a further description.

Carbon Dioxide (CO2), a greenhouse gas, is intricately linked to global warming. The largest store of CO2 is the world's oceans. How the oceans sequester or release CO2 to or from the atmosphere is important to understand as mankind alters Earth's climate with the burning of fossil fuels. A new report from researchers at the University of California, Davis offers clues on how that mechanism works by analyzing the shells of plankton fossils.

A study of bald eagle nestlings found pesticides and flame retardants in their blood. The chemicals are suspected in slowing the eagles' post-DDT recovery in Michigan. There are lots of new flame retardants in use, the health effects of which we know little or nothing.

An Indonesian volcano, inactive for four centuries, erupted again on Monday, pitching ash two km (1.5 miles) into the air and sending nearby residents scurrying from their homes. Villages were emptying fast near Mount Sinabung on the north of Sumatra island, leaving behind only officials from the bureau of meteorology and the police. Short-haul flights skirting the volcano were delayed. Surono, head of Indonesia's vulcanology center, told Reuters Monday's eruption was more powerful than the first a day earlier. "Earlier today was another eruption at 6.30 a.m., sending out smoke as high as two km, more or less," he told Reuters.

China's decision to slash export quotas of rare earth elements was a necessary step to protect the country's environment, commerce minister Chen Deming said following criticism from Japanese officials. "Mass extraction of rare earth will cause great damage to the environment and that's why China has tightened controls over rare earth production, exploration and trade," Chen was quoted by state news agency Xinhua as saying on Saturday.

Hurricane Danielle weakened to a Category 2 storm on Saturday and was set to pass east of Bermuda by the end of the day, the U.S. National Hurricane Center said. Danielle, located some 340 miles southeast of Bermuda, had top sustained winds of 110 miles per hour, the Miami-based hurricane center said. The hurricane poses no direct threat to land or the U.S. Gulf of Mexico oil patch. A tropical storm watch was in effect for Bermuda but computer models showed Danielle passing well east of the island later on Saturday. The Hurricane Center said dangerous surf conditions would affect Bermuda over the next few days.

A geomagnetic storm (or solar storm) is a temporary disturbance of the Earth's magnetosphere caused by a massive solar flares or related sun output. A geomagnetic storm is caused by a solar wind shock wave which typically strikes the Earth's magnetic field 3 days after the event on the sun. The effect on the earth can be small or it can be large. Astronomers are predicting that a massive solar storm, much bigger in potential than the one that caused spectacular light shows on Earth earlier this month, will strike our planet in 2012 with a force of 100 million hydrogen bombs. This is far larger than average.

Every year an amazing event happens on this small island, owned by Australia, which is 220 miles away from the nearest land mass. Christmas Island's geographic isolation and history of limited human disturbance has brought about a high level of species not found elsewhere in the world. Among these species is the Christmas Island Red Crab. Millions of these crabs simultaneously embark on a five kilometer journey to their ocean breeding grounds. Scientists from the University of Bristol and Bangor University believe they have unlocked the mystery to this incredible feat.

At the onset of the 5th anniversary of Hurricane Katrina, students and emerging professionals are putting their time towards helping to rebuild New Orleans in a sustainable fashion. The 2010 US Green Building Council Natural Talent Design Competition, in partnership with the Salvation Army's EnviRenew program, is preparing to have the final student and emerging professional designs for a small, green and affordable home judged by an internationally recognized panel in conjunction with the citizens of New Orleans' Broadmoor neighborhood (where the homes will be built).

Hurricane Danielle strengthened into a Category 4 storm on Friday as it churned over the Atlantic, the U.S. National Hurricane Center said. Danielle, the first major hurricane of the season, was located some 545 miles southeast of Bermuda and was moving northwest at 12 miles per hour (19 km per hour). It had top sustained winds of 135 mph. Any storm packing winds of at least 111 mph is ranked as "major" by the Miami-based hurricane center. Computer models show Danielle tracking northwest and then in a more northerly direction before passing well east of Bermuda on Saturday night.

The asthenosphere is the highly viscous mechanically weak region of the upper mantle of the Earth on which "float" the continental plates. It lies below the lithosphere, at depths between 60 and 120 miles below the surface, but perhaps extending as deep as 400+ miles. The lithosphere is a complex mixture of layers. For example the North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according to a new study by seismologists at the University of California, Berkeley.

Rachel Carson is widely considered the founder of the modern environmental movement. Through her book, "Silent Spring," she opened the public's eyes to the damages caused by the pesticide DDT. From that point on, society realized they have a much greater influence on the environment than previously thought. Borrowing the title from another one of her books, "The Sense of Wonder," the US Environmental Protection Agency (EPA), is holding its fourth annual Rachel Carson Sense of Wonder Contest.

As the proposed Cape Wind offshore wind farm in Massachusetts fends off some last ditch legal challenges to become the first offshore wind farm in the U.S., New Jersey passed a law this week that would ultimately make it the leading provider of offshore wind energy in the country.

Distributing new varieties of drought tolerant maize to African farmers could save more than $1.5 billion dollars, boost yields by up to a quarter and lift some of the world's poorest out of poverty, a study found. The study published on Thursday by the Mexico-based International Maize and Wheat Improvement Center (CIMMYT), with input from other food research institutes, focused on 13 African countries in which it has been handing out drought tolerant maize to farmers over the past four years. It described maize as "the most important cereal crop in Africa," a lifeline to 300 million vulnerable people. The Drought Tolerant Maize for Africa plan aims to hasten the adoption of maize varieties that withstand dry weather.

A secluded island in the Aleutian chain is revealing secrets of how land and marine ecosystems react to and recover from a catastrophic volcanic eruption that at first wiped life off the island. Kasatochi, an island in the Alaska Maritime National Wildlife Refuge rarely studied by scientists before its Aug. 7, 2008, volcanic eruption, is showing signs of recovery.

It's a popular dieting secret: Drink more water, and you'll shed more pounds. Finally, science is adding weight to the practice. After about three months, a new study found, obese dieters who drank two cups of water before each meal lost 5 pounds more than a group of dieters who didn't increase their water intake. A year later, the water-drinkers had also kept more of the weight off.

Artificial light has, throughout history, been a powerful force contributing to the quality and productivity of human life. It is so significant to human life that society spends an enormous amount of energy to produce it. Currently, there is new artificial lighting emerging on the market place. These new technologies, in the form of solid-state lighting (SSL), offer the promise of increased productivity without more energy usage, and a higher quality of life.