DISCOVER Magazine. Science, Technology and The Future
Current Issue
Subscribe Today »
  • Renew
  • Give a Gift
  • Archives
  • Customer Service
  • Facebook
  • Twitter
  • Newsletter
  • Health & Medicine
  • Mind & Brain
  • Technology
  • Space
  • Human Origins
  • Living World
  • Environment
  • Physics & Math
  • Video
  • Photos
  • Podcast
  • RSS
80beats

Archive for the ‘Environment’ Category

« Older Entries
Newer Entries »

Drop in Illegal Logging Left 42 Million Acres of Forest Standing Tall

loggingImagine enough forest to cover the state of Florida. According to a recent report (pdf), a downturn in illegal logging has protected that amount of forest land–some 42 million acres–over the past decade.

The decrease is a good start, London think tank Chatam House authors say, but there is still more work to do.

“We’re a quarter of the way there,” said Sam Lawson, one of the report’s authors. He expressed the hope that newer regulations–such as a European law passed last week that will ban the import of illegal timber by 2012–would cut the amount of illegal logging even further. [AP]

During the last decade, the report says, Cameroon, the Brazilian Amazon, and Indonesia have decreased logging between 50 and 75 percent. Meanwhile, the seven studied consumer and processing countries have decreased illegally harvested wood imports by 30 percent.

Among those importing countries is the United States, which in 2008 became the first country to ban all imports of illegally logged plants and plant products, including furniture and paper. Europe’s ban, passed earlier this month, will go into effect in 2012.

(more…)

Share

July 15th, 2010 Tags: forests, global warming, illegal logging, pollution, rainforest
by Joseph Calamia in Environment | No Comments » | RSS feed | Trackback >

Amazonian Mega-Storm Knocked Down Half a Billion Trees

fallen-treeNorth Americans may remember 2005 as the year of Hurricane Katrina, but below the equator another fearsome tempest wrought its own devastation that year. From January 16th to 18th a line of thunderstorms tore through the Amazon basin, and researchers who conducted a botanical “body count” after the storm estimate that it laid low between 441 and 663 million trees.

Over the course of two days, a squall line measuring 620 miles (1,000 km) long and 124 miles (200 km) wide raged across the region from southwest to northeast, with buzzsaw-like winds of 90 mph (146 km/hr) causing widespread damage to property and a handful of deaths [Time].

Jeffrey Chambers, a forest ecologist at Tulane University, wanted to assess the damage caused throughout the massive Amazon basin, so he turned to satellites.

(more…)

Share

July 13th, 2010 Tags: Amazon, botany, forests, natural disasters, rainforests
by Eliza Strickland in Environment, Living World | No Comments » | RSS feed | Trackback >

One Cap Off, One Cap On: BP Tries Another Plan to Catch Leaking Oil

Gulf Oil SpillWill this solution finally be the solution? Today in the Gulf of Mexico, BP is attempting to secure another containment cap onto its oil leak, which the company says could trap and collect all the oil gushing from the leak—if it works.

On Saturday BP removed the leaky cap that had been catching a little bit of the oil, meaning that the oil is now flowing unchecked into the Gulf as engineers race to install the new one. This is the latest try in a string of attempts to cap the leak, and BP’s Kent Wells says that engineers are lowering the new, tighter-fitting cap into place this morning.

The new cap, which should eventually not allow any gas or oil to escape, will be used to divert more oil to collection ships that will be brought in over the next two to three weeks, Mr. Wells said. “We’ll continue to ramp up the capacity so that sometime along the line, whatever the flow is, we’ll capture it all,” he said [The New York Times].

(more…)

Share

July 12th, 2010 Tags: BP, Gulf of Mexico Oil Spill, ocean, oil & gas, pollution
by Andrew Moseman in Environment, Technology | 2 Comments » | RSS feed | Trackback >

Clean Coal Gets a Boost: DOE Dishes out $67M for Carbon Capture Research

coalpwrThis week it’s green for green: On Tuesday, we mentioned that the Department of Energy was giving out loans totaling $2 billion for two big solar panel projects. Now, the DOE has offered $67 million for research on carbon capture, in hopes of propelling nascent carbon capture and storage projects.

Carbon capture, as its name suggests, requires trapping carbon dioxide from fossil fuel-burners like coal power plants before it enters the air. It isn’t easy. For one, you have to figure out what to do with all the CO2 once you capture it. The first power plant to try out carbon sequestration has found that its neighbors aren’t keen on having CO2 pumped deep into the earth below their town.

Also, capturing the greenhouse gas requires energy, adding 80 percent to the cost of electricity for a new pulverized coal plant and around 35 percent for a high-tech coal gasification plant. The goal, the DOE says in the award announcement, is to reduce these costs to less than 30 percent and 10 percent, respectively.

(more…)

Share

July 8th, 2010 Tags: carbon sequestration, coal, energy, environmental policy, global warming, pollution
by Joseph Calamia in Environment | 4 Comments » | RSS feed | Trackback >

Mission Accomplished: Solar Plane Completes 26-Hour Test Flight

Solar_ImpulseBlackSuccess for Solar Impulse: This morning the solar-powered plane touched down in Switzerland after more than 26 hours in the sky—including flying overnight on battery power.

As we noted yesterday, this was by far the most ambitious test of adventurer Bertrand Piccard’s experimental aircraft, which is covered by 12,000 solar cells. Swiss pilot André Borschberg had to decide last night whether those cells had absorbed enough battery power during the day to coast through the night, and he managed to do it.

“I’ve been a pilot for 40 years now, but this flight has been the most incredible one of my flying career,” Mr. Borschberg said as he landed, according to a statement from the organizers of the project. “Just sitting there and watching the battery charge level rise and rise thanks to the sun. I have just flown more than 26 hours without using a drop of fuel and without causing any pollution” [The New York Times].

(more…)

Share

July 8th, 2010 Tags: alternative energy, aviation, flight, green technology, Solar Impulse, solar power
by Andrew Moseman in Environment, Technology | 4 Comments » | RSS feed | Trackback >

BP Oil Update: Tar Balls in Texas & Lake Pontchartrain

tarballsOn Saturday, five gallons of tar balls appeared on the Bolivar Peninsula and Galveston Island in Texas. Their arrival means that BP oil has now hit all five gulf states. Researchers don’t believe that ocean currents alone carried the balls, but instead say that the glops of gloop washed off recovery ship hulls.

Specifically, the researchers from a joint BP-Coast Guard response team looked at the tar balls’ “weathering,” which they say was too light for oil that had traveled from the leak site, around 550 miles away.

Galveston’s mayor, Joe Jaworski, said he was hopeful the analysis was correct and that the tar balls were not a sign of more oil to come. “This is good news. The water looks good. We’re cautiously optimistic this is an anomaly,” he said. [BBC]

(more…)

Share

July 7th, 2010 Tags: BP, Gulf of Mexico Oil Spill, ocean, pollution, tar balls
by Joseph Calamia in Environment | 4 Comments » | RSS feed | Trackback >

Whales Have to Shout to Be Heard in Today’s Noisy Oceans

whalesThe oceans are getting louder and forcing some whale to speak up, according to a study published yesterday in the journal Biology Letters.

Lead researcher Susan Parks of Penn State University eavesdropped on seven male and seven female North Atlantic right whales by attaching acoustic tags to them via suction cups. Each tag recorded from 2 to 18 calls, which included the whales’ greeting “upcalls” (seemingly questioning “hmm?” sounds that go from a low to high pitch — see video), as well as background noise–believed to come from commercial shipping.

Bioacoustics researcher Christopher Clark of Cornell University, who did not participate in the study, says that ocean noise is becoming a serious issue.

“If I had to immerse you into the sea off Boston, you’d be shocked. You’d be like a country mouse dropped in the middle of Heathrow Airport,” says Clark. “In one generation, we have raised the background level for an entire ocean ecosystem.” [New Scientist]

(more…)

Share

July 7th, 2010 Tags: ecosystems, endangered species, ocean, pollution, whales
by Joseph Calamia in Environment, Living World | 2 Comments » | RSS feed | Trackback >

EPA’s New Air Pollution Rules Crack Down on the Dirtiest Power Plants

SmogNYAre we finally going to clean the skies of smog-causing nitrogen oxides and sulfur dioxide? The Environmental Protection Agency proposes new rules this week that would force power plants in 31 states, mostly in the East, to cut emissions of both to more than half of their 2005 levels by 2014.

The new rules take advantage of the “good neighbor” provision of the Clear Air Act to cut interstate transport—not cars and trucks, but the drift of air pollutants across state borders. (Air pollution, not unlike oil spills, does not respect the lines of the map) [TIME].

The Bush Administration tried to adopt a similar rule, but two years ago a U.S. Court of Appeals said the EPA had overstepped its bounds and nixed the regulations.

As a result, many power companies scaled back their investments in pollution controls. Now those companies will have to decide whether it is more cost-effective to retrofit their dirtiest power plants or shut them down [Los Angeles Times].

(more…)

Share

July 7th, 2010 Tags: air pollution, asthma, coal, environmental policy, EPA, pollution, smog
by Andrew Moseman in Environment, Technology | 2 Comments » | RSS feed | Trackback >

Sunshine-Powered Plane Takes off for a 24-Hour Test Flight

solar impulse425As I write this, a plane powered by the sun is flying somewhere over Europe, undertaking its most ambitious test flight yet.

When we last left the Solar Impulse back in April, the experimental aircraft had flown a two-hour test to prove it was flight-worthy. Today, the pilot in the plane, which weighs about as much as a car and is covered in 12,000 solar cells, will try to stay aloft for 24 hours, even cruising along during the nighttime hours.

“The goal of the project is to have a solar-powered plane flying day and night without fuel,” said team co-founder Bertrand Piccard, adding that this test flight – the third major step after its first ‘flea hop’ and an extended flight earlier this year – will demonstrate whether the ultimate plan is feasible: to fly the plane around the world. “This flight is crucial for the credibility of the project” [AP].

(more…)

Share

July 7th, 2010 Tags: alternative energy, aviation, flight, green technology, Solar Impulse, solar power
by Andrew Moseman in Environment, Technology | 1 Comment » | RSS feed | Trackback >

Acidic Oceans May Cause Clownfish to Swim Straight to Their Doom

clownfishSure, the planet’s increasing carbon dioxide levels are making the oceans more acidic, but what does that really mean for sea life? We’ve already heard that the ocean’s changing chemistry is damaging corals and interfering with mussels, but that’s just the beginning. It turns out things could get seriously weird.

In a paper published this week in The Proceedings of the National Academy of Sciences, researchers led by Philip L. Munday of James Cook University have given us a concrete example: the increased CO2-levels make some fish purposely swim towards predators.

As part of his experiment, Munday used a Y-shaped maze to force baby clownfish to choose between two paths. One path reeked of rock cod, a natural predator; the other had no danger scents. Munday’s team compared the choices of fish raised in water of varying carbon dioxide concentrations, from today’s levels of 390 parts per million up to future expected levels of 850 ppm.

(more…)

Share

July 6th, 2010 Tags: ecosystems, fish, global warming, ocean, ocean acidification, PNAS, pollution, senses, smell
by Joseph Calamia in Environment, Living World | 5 Comments » | RSS feed | Trackback >

Obama Announces $2 Billion for 2 Ambitious Solar Power Schemes

It will take more than a little sun to get one of the world’s biggest solar power plants up and running: it will also require 1,600 workers to build it and a lot of cash. On Saturday, President Obama announced that the U.S. Department of Energy will use last year’s stimulus bill to issue $1.85 billion in loan guarantees to two solar power companies, one of which plans to build one of the planet’s largest solar power plant in Arizona.

Solana, the big solar power plant planned by Abengoa Solar Inc., will cover an area of around 1,900 acres near Gila Bend, Arizona. As detailed in a White House press release, the company claims that the plant will be one of the first in the United States able to store its own power. According to the release, it will also be able to generate 280 megawatts of power—enough energy to run more than 70,000 homes–and will prevent the emission of 475,000 tons of carbon dioxide per year. After construction, the plant will support 85 some permanent jobs, the company claims.

(more…)

Share

July 6th, 2010 Tags: alternative energy, environmental policy, President Obama, solar panels
by Joseph Calamia in Environment | 11 Comments » | RSS feed | Trackback >

Gulf Coast Turtle News: No More Fiery Death; Relocating 70,000 Eggs

oiled-turtleThings may be looking up, ever so slightly, for the Gulf of Mexico’s endangered sea turtles. A few days ago, environmental groups announced that they were suing BP and the Coast Guard over the “controlled burns” that were intended to burn off oil slicks in the water; the environmentalists said that sea turtles were getting caught in the infernos and burned alive. This morning a judge was prepared to hear arguments on a proposed injunction, but at the last minute the parties declared that they’ve reached a settlement.

The agreement comes in advance of an emergency court hearing set today in New Orleans federal court, where environmentalists sought to force BP to either stop controlled burns or place rescuers on the boats to scoop federally protected sea turtles out of floating sludge patches before the corralled oil is ignited [Bloomberg].

According to Sea Turtles Restoration Project, one of the plaintiffs in the case, BP and the Coast Guard have agreed to station a qualified biologist on every vessel involved in the burns, and to remove turtles from the burn area before setting the blaze. This is good news for the leatherbacks, loggerheads, and Kemps Ridley turtles that make their home in the Gulf. Of course, it would be better news if their home wasn’t saturated with oil and periodically set on fire, but we’ll take what we can get.

Elsewhere in turtle news, conservationists are preparing to collect 70,000 turtle eggs from Alabama and Florida beaches. The ambitious scheme, coordinated by the U.S. Fish and Wildlife Service, is seen as the best chance of preventing a massive die-off of the threatened creatures.
(more…)

Share

July 2nd, 2010 Tags: BP, endangered species, Gulf of Mexico Oil Spill, ocean, turtles
by Eliza Strickland in Environment, Living World | 4 Comments » | RSS feed | Trackback >

Should We Allow a Massive Oil Pipeline from Canada to Texas?

oil_sandsWith the perpetual flow of filthy crude from BP’s oil leak in the Gulf of Mexico, just about anything seems like a better energy solution than deep sea offshore drilling. One new proposal, though, has the potential for similarly disastrous environmental harm.

The Keystone XL is a huge proposed pipeline that could carry oil from Canada’s oil sands on a snaking path through the American Midwest and all the way down to Texas, where it will be refined. The idea has been up for public comment for months, and that period comes to a close soon. So, should we build this thing?

YES

There is one good thing about the project: It would be a source of energy that’s not the Middle East, Iran, Venezuela, or another region or country hostile to the United States.

From an energy perspective, Keystone XL delivers one thing the United States needs: plentiful oil from a friendly neighbor. Most oil companies have invested heavily in Canadian oil sands and are firmly behind it [The New York Times].

The project would bring in another million barrels of oil per day from Canada, which is already our biggest foreign oil supplier.

A study released this month by the Perryman Group, an economic analysis firm based in Waco, concluded that the project could generate as much as $2.3 billion in new spending for Texas during construction and $1.1 billion in property taxes to local and county governments over the pipeline’s operating lifetime [Houston Chronicle].

NO

The oil sands are one of the dirtiest energy projects in the world. The oil is dirty to extract and dirty to refine, plus there are the transportation dangers.

(more…)

Share

July 2nd, 2010 Tags: Canada, environmental policy, oil & gas, pipeline, tar sands
by Andrew Moseman in Environment, Technology | 21 Comments » | RSS feed | Trackback >

How Beer Bears Witness: Your Hair Shows Where You’ve Been Drinking

beveragefingerprintI know, I know—after the flawless execution of the perfect crime, all you want to do is put your feet up at a bar with a patio and savor a cold one. However, a new study out in the Journal of Agricultural and Food Chemistry says that the bottle of Budweiser is just filling your body with incriminating evidence.

It’s no secret that traces of what you consume can end up in your hair (hence hair-based drug tests). The researchers wanted to know if they could find a signature in those traces that would show not just what you’ve been using, but also where it came from. So they traveled to a bunch of different U.S. cities and tested out a few of America’s favorite beverage products—Budweiser, Coke, and bottled water—to see if their chemical fingerprints matched up with the fingerprint of the local water supply.

Researchers found that water samples from 33 cities across the United States could be reliably traced back to their origin based on their isotope ratios. And because the human body breaks down water’s constituent atoms of hydrogen and oxygen to construct the proteins that make hair cells, those cells can preserve the record of a person’s travels [ScienceNOW].

(more…)

Share

July 1st, 2010 Tags: beer, forensic science, legal matters, water
by Andrew Moseman in Environment, Technology | 5 Comments » | RSS feed | Trackback >

Hurricane Alex Held Up Oil Cleanup—And in Some Places, Made Things Worse

tropicalstormalexThe eye of Hurricane Alex steered hundreds of miles clear of the center of the BP oil spill, but it still managed to hold up cleanup efforts in the Gulf of Mexico.

Alex was by no means a whopper, reaching category 2 status at its height and blowing with winds just over 100 miles per hour. While mild by hurricane standards, it meant that only the largest ships, like those doing the relief well drilling and oil capturing, could stay out at sea.

Hundreds of shrimp boats that were converted into oil skimmers now sit in port, and the tall waves tossed boom that was holding back the oil onto the beaches of Grand Isle, La. The beaches are now too dangerous even for cleanup crews. “Those booms, they don’t seem like they were designed for this kind of wave action,” said Matthew Slavich, an oyster fisherman hired by BP for cleanup efforts. He was out on the open water trying to lay boom today, but didn’t stay long [ABC News].

Besides hampering cleanup efforts, Alex also negated some of the work crews already did.

(more…)

Share

July 1st, 2010 Tags: BP, Gulf of Mexico Oil Spill, hurricanes, ocean, oil & gas, oil spill, pollution
by Andrew Moseman in Environment | No Comments » | RSS feed | Trackback >

« Older Entries
Newer Entries »




    • 80beats Daily Newsletter

      Enter your email address:

    • Twitter

      Follow @discovermag
    • Facebook

    • RSS Feed

      The RSS feed for 80beats is here RSS.

    • Sci News in 140

      rockahn.net
    • on 80beats

      Recent Comments

      Comments

      • mike on We Pump Water From Underground. It Flows to the Ocean. The Oceans Are Getting Deeper.
      • Curtis on Watch This: Non-Stick Coating Keeps Ketchup Flowing & Airplane Wings Free of Ice
      • Mark on Watch This: Non-Stick Coating Keeps Ketchup Flowing & Airplane Wings Free of Ice
      • Pippa on SpaceX’s Ship Blasted Off This Morning, Bound for the International Space Station
      • Jockaira on Watch This: Non-Stick Coating Keeps Ketchup Flowing & Airplane Wings Free of Ice
      • amphiox on We Pump Water From Underground. It Flows to the Ocean. The Oceans Are Getting Deeper.
      RSS Recent Posts

      Posts

      • Ancient Golden Earring Discovered Hidden in a Jar in Israel
      • Watch This: Non-Stick Coating Keeps Ketchup Flowing & Airplane Wings Free of Ice
      • Some Imported Shrimp on Grocery Store Shelves are Contaminated with Antibiotics
      • We Pump Water From Underground. It Flows to the Ocean. The Oceans Are Getting Deeper.
      • Synthetic Biologists Turn DNA Into Rewritable, Digital Data Storage
      Categories

      Categories

      • Environment
      • Feature
      • Health & Medicine
      • Human Origins
      • Journal Roundup
      • Living World
      • Mind & Brain
      • News Roundup
      • Photo Gallery
      • Physics & Math
      • Space
      • Technology
      • Top Posts
      • Uncategorized
      Archives

      Archives

      • May 2012
      • April 2012
      • March 2012
      • February 2012
      • January 2012
      • December 2011
      • November 2011
      • October 2011
      • September 2011
      • August 2011
      • July 2011
      • June 2011
      • May 2011
      • April 2011
      • March 2011
      • February 2011
      • January 2011
      • December 2010
      • November 2010
      • October 2010
      • September 2010
      • August 2010
      • July 2010
      • June 2010
      • May 2010
      • April 2010
      • March 2010
      • February 2010
      • January 2010
      • December 2009
      • November 2009
      • October 2009
      • September 2009
      • August 2009
      • July 2009
      • June 2009
      • May 2009
      • April 2009
      • March 2009
      • February 2009
      • January 2009
      • December 2008
      • November 2008
      • October 2008
      • September 2008
      • August 2008
      • July 2008
      • June 2008
      • May 2008
    • About 80beats

      80beats is DISCOVER's news aggregator, weaving together the choicest tidbits from the best articles on the day's most compelling topics.

      80beats is written by Veronique Greenwood and Valerie Ross. This team darts through each day's science news faster than the ruby-throated hummingbird that beats its wings 80 times per second. Send ideas, tips, suggestions, and complaints to [azeeberg at discovermagazine dot com].



  • Kalmbach Publishing Co.

    Copyright © 2012, Kalmbach Publishing Co.

    Privacy - Terms - Reader Services - Subscribe Today - Advertise - About Us