Wednesday, June 4, 2008

The Discovery Channel Goes Green!

Planet Green TV network pushes environmentalism
Discovery Networks is hoping to parlay the "green" living movement into greenbacks with Planet Green, a new cable network due June 4.

And the channel is using celebrities — including rapper Ludacris, rocker Tommy Lee and Entourage star Adrian Grenier — to soft-pedal its mission and win over casual "armchair environmentalists."

The target audience: college students, baby boomers and new parents who have demonstrated an interest in improving the planet by changing their ways of living.

"It used to be that green was granola and left," says Discovery Networks CEO David Zaslav. But with interest in environmentalism broadening beyond the hard-core planet-in-peril preachers, Discovery is eyeing a mainstream audience for its brand of advocacy.

"We're not going to be 'The ice is melting,' " he says; the audience already gets that message. "We want to engage people in a fun way and in the spirit of what we can all do together."

Though other cable channels offer programming blocks, this is the first fully "green" channel. And in a rare move for a start-up, Planet Green plans a nearly all-original lineup of 14 personality-driven series this summer, three of which will air five days a week.

"The voices from Hollywood will help audiences find the network faster," says channel chief Eileen O'Neill. She says other experts will add a dose of credibility.

That means such shows as Battleground Earth, which pits Ludacris against Tommy Lee — neither of whom is known for his green thumb — in a series of challenges such as solar-powered racing and bamboo home-building.

"That sounds a little out of my element as far as hard labor is concerned," says Ludacris, who says his main environmental contribution so far has been keeping lights turned off and "putting my computer on sleep." But, he says, "I'm willing to do what I need to do to educate America. There's little things I know about, but I feel like there are other things I can learn."

And Grenier, whose Entourage HBO alter-ego is a party-hearty movie star, will produce and appear in The Green Life, which aims "to inspire on an emotional level" his own brand of environmentalism, including refurbishing a Spanish-style home with an ozonated pool and recycled shower water.

"We're attempting to avoid the more boring parts of what this show could be," he says. "We're not a bricks-and-mortar type show. The main focus is how to be creative when you're trying to do things you want to do anyway."

Told that Lee already has dubbed him "Luda the Polluta," Ludacris (aka Chris Bridges) came up with his own nickname for his soon-to-be nemesis (the show begins filming April 16): "Toxic Tommy."

"I was definitely not down to do another reality show, because we have too many of those, and they're stupid," Lee says. "But we're doing something for our kids. (Environmentalism) is a serious sort of subject, but you got to make it fun or you freak people out."

Planet Green replaces Discovery Home, an unsuccessful spinoff channel, and will be available in 50 million of the nation's 110 million TV homes June 4. It's part of the company's retooling that also has transformed Discovery Times into Investigation Discovery, and next year turns Discovery Health into the Oprah Winfrey Network.

In 10-year-old Discovery Home, "they've got a network on their hands that clearly is not working," says SNL Kagan analyst Derek Baine. "If they don't do something to get the image up and deliver viewers, they are in danger of having operators drop the channel (or) move it to a higher (digital) tier."


Find this article at:
http://www.usatoday.com/life/television/news/2008-03-30-planet-green_N.htm

Copyright 2008 USA TODAY, a division of Gannett Co. Inc.

Thursday, May 29, 2008

An Abrupt Climate Change?

Large Methane Release Could Cause Abrupt Climate Change As Happened 635 Million Years Ago


Geologists Chris von der Borch (front) and David Mrofka (back) look for evidence of ancient methane seepage within tidal sediments seen in sea cliff exposures at Marino Rocks, South Australia. (Credit: M. Kennedy, UC Riverside)

ScienceDaily (May 29, 2008) — An abrupt release of methane, a powerful greenhouse gas, about 635 million years ago from ice sheets that then extended to Earth's low latitudes caused a dramatic shift in climate, triggering a series of events that resulted in global warming and effectively ended the last "snowball" ice age, a UC Riverside-led study reports.

The researchers posit that the methane was released gradually at first and then in abundance from clathrates -- methane ice that forms and stabilizes beneath ice sheets under specific temperatures and pressures. When the ice sheets became unstable, they collapsed, releasing pressure on the clathrates which began to degas.

"Our findings document an abrupt and catastrophic means of global warming that abruptly led from a very cold, seemingly stable climate state to a very warm also stable climate state with no pause in between," said Martin Kennedy, a professor of geology in the Department of Earth Sciences, who led the research team.

"This tells us about the mechanism, which exists, but is dormant today, as well as the rate of change," he added. "What we now need to know is the sensitivity of the trigger: how much forcing does it take to move from one stable state to the other, and are we approaching something like that today with current carbon dioxide warming."

Study results appear in the May 29 issue of Nature.

According to the study, methane clathrate destabilization acted as a runaway feedback to increased warming, and was the tipping point that ended the last snowball Earth. (The snowball Earth hypothesis posits that the Earth was covered from pole to pole in a thick sheet of ice for millions of years at a time.)

"Once methane was released at low latitudes from destabilization in front of ice sheets, warming caused other clathrates to destabilize because clathrates are held in a temperature-pressure balance of a few degrees," Kennedy said. "But not all the Earth's methane has been released as yet. These same methane clathrates are present today in the Arctic permafrost as well as below sea level at the continental margins of the ocean, and remain dormant until triggered by warming.

"This is a major concern because it's possible that only a little warming can unleash this trapped methane. Unzippering the methane reservoir could potentially warm the Earth tens of degrees, and the mechanism could be geologically very rapid. Such a violent, zipper-like opening of the clathrates could have triggered a catastrophic climate and biogeochemical reorganization of the ocean and atmosphere around 635 million years ago."

Today, the Earth's permafrost extends from the poles to approximately 60 degrees latitude. But during the last snowball Earth, which lasted from 790 to 635 million years ago, conditions were cold enough to allow clathrates to extend all the way to the equator.

According to Kennedy, the abruptness of the glacial termination, changes in ancient ocean-chemistry, and unusual chemical deposits in the oceans that occurred during the snowball Earth ice age have been a curiosity and a challenge to climate scientists for many decades.

"The geologic deposits of this period are quite different from what we find in subsequent deglaciation," he said. "Moreover, they immediately precede the first appearance of animals on earth, suggesting some kind of environmental link. Our methane hypothesis is capable also of accounting for this odd geological, geochemical and paleooceanographic record."

Also called marsh gas, methane is a colorless, odorless gas. As a greenhouse gas, it is about 30 times more potent than carbon dioxide, and has largely been held responsible for a warming event that occurred about 55 million years ago, when average global temperatures rose by 4-8 degrees Celsius.

When released into the ocean-atmosphere system, methane reacts with oxygen to form carbon dioxide and can cause marine dysoxia, which kills oxygen-using animals, and has been proposed as an explanation for major oceanic extinctions.

"One way to look at the present human influence on global warming is that we are conducting a global-scale experiment with Earth's climate system," Kennedy said. "We are witnessing an unprecedented rate of warming, with little or no knowledge of what instabilities lurk in the climate system and how they can influence life on Earth. But much the same experiment has already been conducted 635 million years ago, and the outcome is preserved in the geologic record. We see that strong forcing on the climate, not unlike the current carbon dioxide forcing, results in the activation of latent controls in the climate system that, once initiated, change the climate to a wholly different state."

As part of their research, Kennedy and his colleagues collected hundreds of marine sediment samples in South Australia for stable isotope analysis, an important tool used in climate reconstruction. At UCR, the researchers analyzed the samples and found the broadest range of oxygen isotopic variation ever reported from marine sediments that they attribute to melting waters in ice sheets as well as destabilization of clathrates by glacial meltwater.

Next in their research, Kennedy and his colleagues will work on estimating how much of the temperature change that occurred 635 million years ago was due solely to methane.

Kennedy, who directs the Global Climate and Environmental Change Graduate Program in UCR's Department of Earth Sciences, was joined in the study by UCR's David Mrofka; and Chris von der Borch of Flinders University, Australia. The study was supported by grants from the National Science Foundation and NASA Exobiology.


Journal reference:

  1. Martin Kennedy, David Mrofka & Chris von der Borch. Snowball Earth termination by destabilization of equatorial permafrost methane clathrate. Nature, 453, 642-645 (29 May 2008) DOI: 10.1038/nature06961
Adapted from materials provided by University of California - Riverside.
APA

MLA
University of California - Riverside (2008, May 29). Large Methane Release Could Cause Abrupt Climate Change As Happened 635 Million Years Ago. ScienceDaily. Retrieved May 29, 2008, from http://www.sciencedaily.com­ /releases/2008/05/080528140255.htm

Wednesday, May 21, 2008

From the We Campaign...

The clock is ticking for clean energy. The federal tax credits that support investments in wind and solar power are about to expire. Instead of acting -- Congress keeps stalling.

Tell Congress to renew incentives for clean energy now.

If Congress lets these clean energy credits lapse, 116,000 jobs and $19 billion in investments for 2009 will be immediately at risk. The clean power industry has been a bright spot in our economy -- providing good jobs, relief from skyrocketing energy prices and solutions to the climate crisis. The industry is poised to make great leaps in scale. Inaction from Washington to slow this momentum would be a mistake -- and could lead investors back to the polluting fossil-fuel industries of the past.

Add your voice today. We'll deliver the petition to the leaders of Congress to demand a vote on our energy and economic future.

Thursday, April 17, 2008

Earth Day Celebrations at Museum of the Earth

Climate Change: Prospects for Nature
A Lecture from Dr. Tom Lovejoy
Creator of the PBS series "Nature"
Friday, April 18, 2008
6:30 pm – 8:30 pm


Join Museum of the Earth as we kick off our Earth Day celebration with a reception and lecture from Dr. Tom Lovejoy.

Lovejoy is a nationally recognized environmental advocate and founder of the public television series “Nature.” He is currently President of the Heinz Center, a nonprofit, nonpartisan institution dedicated to improving the scientific and economic foundation for environmental policy through multisectoral collaboration. Before assuming leadership at the Heinz Center, he was the World Bank’s Chief Biodiversity adviser and Lead Specialist for Environment for Latin America and the Caribbean and Senior adviser to the President of the United Nations Foundation. Dr. Lovejoy has been Assistant Secretary and Counselor to the Secretary at the Smithsonian Institution, Science adviser to the Secretary of the Interior, and Executive Vice President of the World Wildlife Fun-U.S. He also served on science and environmental councils or committees under the Reagan, Bush and Clinton administrations.

The Lovejoy lecture and reception is free and open to the public.


Family Earth Day Celebration
Saturday, April 19, 2008
11:00 am – 3:00 pm


The Museum of the Earth is excited to host a series of fun filled activities for the whole family in celebration of Earth Day!

Botany through the Ages
11:30 and 1:30

How did plants change and evolve throughout
history and what kind of influences did they have on animal evolution?
What are the contributions of plants in the development of todays
Earth? Develop a better appreciation of plants as they discover how
important plants are to their existence.


Honda Hybrid Car Display
11:00-3:00
Check out one of the latest Honda Hybrids on display in the Plaza courtesy of Honda of Ithaca!

Story time
11:00 and 1:00

Earth story time at 11am and 1pm - Sit back, relax and enjoy stories of
the Earth for listeners of all ages.

Ongoing activities of crafts and so much more!



Earth Day Celebration made possible by Wegmans!

Wednesday, April 9, 2008

The Govenator...

Watch this great PSA from the Governors of California, Utah, and Montana.




*Thanks Laura!