Category: Enviroment

Earth As Art

Click on the link to earth_art-ebook to download a pdf file of an amazing collection of earth views  from 16 NASA satellites

Some of the instruments aboard the satellites collect data in different ranges of wavelengths of light. These “spectral bands” break up all the visible and invisible light into chunks: the reds, the blues, the greens and even infrared, a wavelength of light that humans can’t see.

When researchers piece the image data back together, they can be selective about which “bands” of light are displayed in the final image. “The selection depends on the intent of the analysis,” Friedl wrote in an email. “An analysis of vegetation would probably select the red, green and infrared bands — vegetation is ‘bright’ in those bands and the analyst could differentiate between the types or health of vegetation.”

Phytoplankton Bloom, Baltic Sea, 2005 Massive congregations of greenish phytoplankton swirl in the dark water around Gotland, a Swedish island in the Baltic Sea. Phytoplankton are microscopic marine plants that form the first link in nearly all ocean food chains. Blooms of phytoplankton, occur when deep currents bring nutrients up to sunlit surface waters.
Phytoplankton Bloom, Baltic Sea, 2005 Massive congregations of greenish phytoplankton swirl in the dark water around Gotland, a Swedish island in the Baltic Sea. Phytoplankton are microscopic marine plants that form the first link in nearly all ocean food chains. Blooms of phytoplankton, occur when deep currents bring nutrients up to sunlit surface waters.

Friedl says analysts generally don’t go out of their way to make images look surreal, but this kind of spectral analysis can be used to great effect. “There are whole books written on what band combinations to use to bring out certain features,” he told me. Like rocks: When studying the retreat of the glaciers of the Himalayas, Friedl says, you can train software to recognize the light signature of exposed rock. And instead of directly measuring the glaciers themselves, you can see where new rock is getting exposed year over year.

via Earth As Art: ‘How Did Nature Do That?’ : The Picture Show : NPR.

Video -Humongous Greenland Glacier Collapse

On May 28, 2008, Adam LeWinter and Director Jeff Orlowski filmed a historic breakup at the Ilulissat Glacier in Western Greenland. The calving event lasted for 75 minutes and the glacier retreated a full mile across a calving face three miles wide. The height of the ice is about 3,000 feet, 300-400 feet above water and the rest below water.

Chasing Ice won the award for Excellence in Cinematography at the 2012 Sundance Film Festival, and has won 24 awards so far this year. Playing in theaters now. Thanks to Valerie Sanders. Click on the YouTube logo, choose the HD option and go Full Screen for the full effect.

Cute Kitty the Killer

A new study by the Smithsonian Conservation Biology Institute and the Fish and Wildlife Service estimated that domestic cats in the United States kill a median of 2.4 billion birds and 12.3 billion mammals a year, most of them native mammals like shrews, chipmunks and voles rather than introduced pests like the Norway rat.

The estimated kill rates are two to four times higher than mortality figures previously bandied about, and position the domestic cat as one of the single greatest human-linked threats to wildlife in the nation. More birds and mammals die at the mouths of cats, the report said, than from automobile strikes, pesticides and poisons, collisions with skyscrapers and windmills and other so-called anthropogenic causes.

KittyThe KillerYet the new study estimates that free-roaming pets account for only about 29 percent of the birds and 11 percent of the mammals killed by domestic cats each year, and the real problem arises over how to manage the 80 million or so stray or feral cats that commit the bulk of the wildlife slaughter.

via That Cuddly Kitty Is Deadlier Than You Think – NYTimes.com.

Nasty, Short and Brutish

Conventional cultural anthropology’s thinking was that tribal people were peaceful, that Darwinism had nothing to say about human behavior and culture, and that material resources were the cause of conflict.

Current Science is refuting all 3 assumptions. Mortality from violence is very common in small-scale societies today and in the past. Almost one-third of such people die in raids and fights, and the death rate is twice as high among men as among women. This is a far higher death rate than experienced even in countries worst hit by World War II. Thomas Hobbes’s “war of each against all” looks more accurate for humanity in a state of nature than Jean-Jacques Rousseau’s “noble savage,” though anthropologists today prefer to see a continuum between these extremes.

A Darwinian explanation of warfare would imply that similar kinds of violence might have evolved in other group-living animals. In recent years, Richard Wrangham of Harvard University has described chronic intergroup violence among chimpanzees.

But what is the motive for such killing? Robert Walker of the University of Missouri, Columbia, and Drew Bailey of Carnegie Mellon University last year published a survey of “Body Counts in Lowland South American Violence” and concluded that motives include revenge for previous killings, jealousy over women, capture of women and children and, less often, theft of material goods. Come to think of it, sounds just like the Trojan War

via Mind & Matter: Noble Savages Points to Resolution in Study of War – WSJ.com.

Is Great White Following Kayak Picture Real?

Great White and Kayak

I’ve always wondered if the well-circulated image was rea. The Photographer’s notes sound quite convincing.
©Thomas P. Peschak
When this photograph was first published in Africa Geographic, BBC Wildlife and later in Paris Match and the Daily Mail (London) it resulted in a flurry of e-mails, phone calls and letters from around the world asking if the image was a fake. The image became the most talked about of shark photograph ever.

The photograph is real, no photoshop, no digital manipulation, no nothing, in fact it was shot on slide film Fuji Provia 100 using a Nikon F5 Camera and 17-35 mm lens. For those conspiracy fans who still doubt its authenticity please read how I took the photograph.

To capture this image I tied myself to the tower of the research boat Lamnidae and leaned into the void, precariously hanging over the ocean while waiting patiently for a white shark to come along. I wanted to shot a photograph that would tell the story of our research efforts to track white sharks using kayaks. When the first shark of the day came across our sea kayak it dove to the seabed and inspected it from below. I quickly trained my camera on the dark shadow which slowly transformed from diffuse shape into the sleek outline of a large great white. When the shark’s dorsal fin broke the surface I thought I had the shot, but hesitated a fraction of a second and was rewarded with marine biologist Trey Snow in the kayak turning around to look behind him. I pressed the shutter and the rest was history. Throughout the day I shot many more images, most showing the kayak following the shark, but all lacked the power of that first image of the great white tracking the kayak.

17′ Florida Python – The hunt is on for a new record

FlaPythonSome estimate that nearly 150,000 pythons are living in the Florida Everglades. Officials say the Burmese pythons are eating wildlife and with no natural predator, the population is overwhelming. The Everglades have become crowded with the snakes and the pythons have started to move into nearby neighborhoods. Last year, a Burmese python was caught and registered more than 17 feet long and 160 pounds. The catch set a new Everglades National Park record.

via Florida Python Hunt Launched to Curb Slithering Population – ABC News.

Vanishing Act: Camouflage in Nature

animal-camouflage-photography-art-wolfe-1In this astonishing new book, legendary wildlife photographer Art Wolfe turns to one of nature’s most fundamental survival techniques: the vanishing act. His portraits show animals and insects disappearing into their surroundings, using deceptions, disguises, lures, and decoys to confuse the eye of both predator and prey. Click on this link and hit the “Slideshow” option and see how many you can find.

Vanishing Act: Camouflage in Nature | Art Wolfe Stock Photography 888-973-0011.

animal-camouflage-photography-art-wolfe-2

How Leaded Gasoline Caused Our Violent Crime Wave.

Starting in the 1960s, America saw a huge increase in levels of violent crime that peaked in the early 1990s, then steadily declined, and continues to decline today. All kinds of theories have been promulgated to explain this peak and decline in crime, and plenty of politicians in the 1990s took credit for it. Lead emissions from automobiles explain 90 percent of the variation in violent crime in America. Toddlers who ingested high levels of lead in the ’40s and ’50s really were more likely to become violent criminals in the ’60s, ’70s, and ’80s.

And with that we have our molecule: tetraethyl lead, the gasoline additive invented by General Motors in the 1920s to prevent knocking and pinging in high-performance engines. As auto sales boomed after World War II, and drivers in powerful new cars increasingly asked service station attendants to “fill ‘er up with ethyl,” they were unwittingly creating a crime wave two decades later.

The use of lead pipes to carry water to wealthy neighLeadedCrimeWaveborhoods is claimed to be one major factor that contributed to the weakening and eventual destruction of the Roman Empire. At least we had the Science to discover our lead folly and correct it, even though much is to still be remediated. But the huge penal/judicial/police industrial complex budget justifications are threatened by such a simple crime source. Turns out criminologists were blaming the wrong Lead, when some accused the music of Led Zeppelin, among others.

via America’s Real Criminal Element: Lead | Mother Jones.

Extreme Firewood Stacking

Firewood keeps you warm, when you’re cutting, hauling, splitting and stacking it, in addition to when you actually burn it. Now that the Winter weather is really here, it is time to reflect on how some other folks have gone beyond just stacking up wood to keep warm. .

This slideshow requires JavaScript.

How To Properly Stack Firewood – Yellow Bullet Forums. Click for more examples of Extreme Firewood Stacking