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November 17, 2009 03:31 PM EST
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November 17, 2009 06:09 AM EST
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November 13, 2009 03:10 PM EST
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November 03, 2009 04:07 PM EST
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Global warming is happening now. There has been an increase in extreme weather events over the past 20 years such as floods and droughts resulting in failed harvests, destroyed homes and a deepening health crisis for millions of the world's most vulnerable people.

November 23, 2009 06:41 PM EST
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rating: 10
Below are Sam Carana's 20 most viewed posts at Gather, as at 23 November 2009.  | February 15, 2009 10:31 PM EST -- The Intergovernmental Panel on Climate Change (IPCC) has in many respects underestimated the severity of global warming and the speed at which it strikes. "From 2000 to 2007, greenhouse gas emissions . . . more |
| March 07, 2007 12:18 AM EST -- Let's have a look at the many concerns and dangers associated with global warming and the resulting changes in climate around the world. I've tentatively grouped them into ten points. . . . more |
 | September 01, 2008 06:31 AM EDT -- All-electric cars Toyota has announced plans to launch an electric car. It will be an all-electric car (rather than a hybrid) and it will be a small car, limited to commuting or city driving, powered . . . more |
| April 08, 2007 03:30 AM EDT -- There are many things we can all do to reduce our contributions to global warming. Here are ten things politians can do now to make a difference: 1. Tax energy supply that adds extra heat to global . . . more |
 | May 15, 2008 03:46 AM EDT -- The US government has listed polar bears as a threatened species, as Arctic sea ice shows dramatic reductions. On Wednesday, US Interior Secretary Dirk Kempthorne referred to the Endangered Species Act . . . more |
 | April 20, 2008 04:24 AM EDT -- Last month, at the New York International Automobile Show, Mitsubishi displayed the i MiEV (i indicates it's a minivan, while MIEV stands for M itsubishi i nnovative E lectric V ehicle). Mitsubishi . . . more |
 | October 09, 2008 03:00 AM EDT -- The electric helicopter pictured below is an invention of Sean Herbert, who started testing the concept two years ago. With Sydney-based Wieland Helicopter Technologies , Sean has now developed an range . . . more |
 | November 10, 2007 05:20 AM EST -- The commitment of Iceland towards creating the world's first hydrogen society has reached new heights with project SMART-H2 (Sustainable Marine and Road Transport - Hydrogen). Fuel cell . . . more |
 | April 03, 2008 09:49 AM EDT -- In November 2007, I wrote an article about Project Better Place , which was planning to deliver subsidized electric vehicles, while recovering costs through a network of recharging points and battery . . . more |
 | October 06, 2007 02:39 AM EDT -- Most households only use one or at most two different rubbish bins, one for recyclables (paper & packaging) and one for general waste. It makes a lot of sense to add a third type of rubbish bin, . . . more |
 | May 04, 2008 09:41 PM EDT -- OptiSolar is developing a 550-megawatt photovoltaic solar farm on the northwestern corner of Carrisa Plains, some 100 miles north of Los Angeles. The project will produce enough electricity to power . . . more |
| October 08, 2008 10:22 PM EDT -- Intro: I received a message from Cathy Zoi, CEO of www.wecansolveit.org urging people to tell the ABC to air the Repower America ad. I fully support Cathy's call and share the message below . . . more |
 | October 22, 2007 08:28 PM EDT -- Reducing greenhouse gases Reducing greenhouse gases is one of the biggest challenges of our times. The main greenhouse gases are carbon dioxide, methane and nitrous oxide. Over half of all greenhouse . . . more |
 | April 24, 2008 01:32 AM EDT -- In discussions about global warming, many are reluctant to make 'the first move'. The coal industry points at figures by the Energy Information Administration (EIA), showing that coal accounted . . . more |
 | November 07, 2007 05:06 AM EST -- Would you like to get a cheap electric car? Project Better Place has raised more than $200 million in funding to source electric cars and batteries for a network of charging spots and battery exchange . . . more |
 | May 22, 2008 07:32 AM EDT -- Rising Sun for Electric Cars Originally published 04/22/08 (Earth Day) by Roy Morrison in Policy Innovations Earth Day 2008 is a time to ask: Is my sustainability work consonant . . . more |
 | October 23, 2008 08:23 AM EDT -- Professor David Keith of the University of Calgary is working on a device that removes carbon dioxide (CO 2 ) directly from ambient air. Keith has built a tower, 4 feet wide and 20 feet tall, . . . more |
 | April 14, 2008 06:12 AM EDT -- To reduce emissions of carbon dioxide (CO 2 ), it makes a lot of sense to look at buildings and pavement. In the United States, buildings account for 38% of total CO 2 emissions. This is partly due to . . . more |
 | December 20, 2008 06:54 AM EST -- When it's hot, should you turn on the car's air-conditioner? As many will have experienced, driving with the air-conditioner on can incr more |
 | July 06, 2009 03:35 AM EDT -- The Electric Ford F-150 uses four in-wheel motors, one in each of the wheels. The concept car was on display at the 2008 SEMA Show in the Ford Motor Company booth. PML Flightlink supplied the . . . more |
Above figures as at 23 November 2009 -- for an update, go to Sam Carana's posts, and select the most viewed posts. Had profile visits been included, then Sam Carana's profile page would have come in at the third place (figures as at 23 November 2009). |
Of the above 20 posts, only two are from 2009, the top one and the bottom one. Below are some more of Sam Carana's 2009 posts:  | January 28, 2009 02:26 AM EST -- In Greek mythology, Ceto was a sea goddess. Ceto was a daughter of Gaia and Pontus, and she personified the power of the sea. In a current incarnation, CETO is the name of a wave power technology . . . more |
 | April 30, 2009 02:09 AM EDT -- NASA scientists are proposing algae bags as a way to produce renewable energy that does not compete with agriculture for land or fresh water. It uses algae to produce biofuel from sewage, using nutrients . . . more |
 | May 19, 2009 01:15 AM EDT -- Cycle A: Inorganic Waste We're all familiar with the idea that we're running out of scarce resources. We just cannot continue to keep drilling and mining for more fossil fuel, metals and . . . more |
 | May 21, 2009 08:32 AM EDT -- Will America be a desert by 2100? Or Africa, India or China, for that matter? Chances are, according to MIT projections , that global median surface temperature will rise by 9.4 o F (5.2 o C) by 2100, . . . more |
 | May 28, 2009 09:21 AM EDT -- What will power your next car? Will it be gasoline, diesel, perhaps mixed with biofuel? Or will it be electricity? In case electricity will power your next car, how will it be produced? From coal, natural . . . more |
 | July 16, 2009 08:46 AM EDT -- In Canada, the Ontario government has announced that it wants to have one out of every 20 vehicles driven in Ontario to be electrically powered by 2020. To help achieve that target, buyers . . . more |
 | July 22, 2009 02:36 AM EDT -- The Hydrogen Initiative Ex-President G. W. Bush loved photo opportunities that portrayed him as an advocate of hydrogen cars. The photo on the right shows Bush inspecting a scooter powered by solid . . . more |
 | July 22, 2009 05:27 AM EDT -- On July 19, 2009, the Flightstar e-Spyder flew at South Woodstock doing two flights about 10 minutes each. The plane reached an altitude of 400 feet and speeds of up to 55 mph, according to this article . . . more |
 | August 02, 2009 04:37 AM EDT -- Nissan has unveiled the Nissan LEAF Electric Vehicle (EV), a zero-emission car. The Nissan LEAF is a medium-size hatchback seating five adults, with a 24kWh lithium-ion battery pack that generates a . . . more |
 | August 07, 2009 07:13 AM EDT -- Best target? Best policies? With the Copenhagen Conference fast approaching, what targets should be aimed for? What are the best targets? What policies can best achieve such targets? Many suggest . . . more |
 | August 13, 2009 10:08 PM EDT -- Below are some of my favorite groups at Gather. Feel invited to join one or more of them - you're most welcome to post relevant content. What are your favorite groups? Feel encouraged to mention your . . . more |
 | August 15, 2009 04:57 AM EDT -- 1. Are electric cars expensive? The Nissan LEAF EV promises to be as cheap as a similar-sized conventional car. EVs qualify for rebates, tax breaks and further incentives. Furthermore, electricity . . . more |
 | September 13, 2009 09:56 PM EDT -- The Frankfurt Motor Show , held every two years, is the world's largest motor show. It will be held from September 17th - 27th, 2009, in Frankfurt, Germany. At the Frankfurt Motor Show, Hyundai will . . . more |
 | September 19, 2009 09:41 AM EDT -- In 2008, Michelin first introduced the Active Wheel concept. Now, at the Frunkfurt Motor Show , Michelin has taken the concept one step further, introducing a wheel that not only integrates the brake . . . more |
 | September 22, 2009 03:23 AM EDT -- Large-scale afforestation, in the form of bringing vegetation into the desert by means of desalinated water, is proposed by a team of scientists. A study by Leonard Ornstein, a cell biologist at the Mount . . . more |
 | September 26, 2009 05:18 AM EDT -- As I discussed in What will power your next car? , solar/PV energy represented a meager 0.081% of the energy produced in the US in 2007, barely more than the 0.066% it produced back in 2000. Renewables' . . . more |
Five Electrifying Transport Ideas  | November 17, 2009 06:09 AM EST -- 1. High Speed Rail High speed rail can move large amounts of people and freight fast, conveniently and economically. High speed rail systems have been operating successfully in Europe and Japan . . . more |
We CAN change the world! Cheers, Sam Carana
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November 17, 2009 03:31 PM EST
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rating: 10
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comments: 45
Today in Beijing, US President Barack Obama and Chinese President Hu Jintao announced a package of measures "to strengthen cooperation between the United States and China on clean energy."
According to President Obama,
I want to reaffirm the fact that the American people are interested in stronger relations with the people of China, and that the more that we can encourage people-to-people exchanges that are consistent with the discussions that we're having at the government level, the more that China and the United States will be able to work cooperatively on a whole range of issues -- both economic issues, security issues, and global issues that are in the interest not just of our two nations but the entire world. The two Presidents announced a series of major areas of cooperation:
The U.S.-China Clean Energy Research Center will facilitate joint research and development of clean energy technologies by teams of scientists and engineers from the United States and China, as well as serve as a clearinghouse to help researchers in each country.
The U.S.-China Electric Vehicles Initiative will include joint standards development, demonstration projects in more than a dozen cities, technical roadmapping and public education projects, all aimed at eventual deployment of electric vehicles to reduce oil dependence.
The U.S. China Energy Efficiency Action Plan will allow the two countries to work together to improve the energy efficiency of buildings, industrial facilities, and consumer appliances, culminating with an annual U.S.-China Energy Efficiency Forum, rotating between the two countries.
The U.S. China Renewable Energy Partnership will facilitate development of roadmaps for wide-spread renewable energy deployment. A new Advanced Grid Working Group made up of American and Chinese developers and strategists will help plan for grid modernization in both countries, and a new U.S.-China Renewable Energy Forum will be held annually, rotating between the two countries.
A 21st Century Coal Initiative, for which the two Presidents pledged to promote cooperation on cleaner uses of coal, will include large-scale carbon capture and storage (CCS) demonstration projects.
A Shale Gas Initiative, will allow the U.S. and China to use experience gained in the United States to assess China’s shale gas potential, promote environmentally-sustainable development of shale gas resources, conduct joint technical studies to accelerate development of shale gas resources in China, and promote shale gas investment in China through the U.S.-China Oil and Gas Industry Forum, study tours, and workshops.
The U.S. China Energy Cooperation Program will leverage private sector resources for project development work in China across a broad array of clean energy projects, to the benefit of both nations.
More available on the White House blog.
November 17, 2009 06:09 AM EST
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rating: 10
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comments: 12
1. High Speed Rail
High speed rail can move large amounts of people and freight fast, conveniently and economically. High speed rail systems have been operating successfully in Europe and Japan for many years. In Canada, a survey found that 86% of Canadians are in favor of the introduction of high-speed trains. In the U.S., Amtrak lost $32 per passenger in 2008, according to a Pew analysis, but the Northeast Corridor, which carried over one third of passengers, made a profit of about $10 per passenger. The loss of almost $5 per passenger of Northeast Regional was more than made up by the corridor's high-speed Acela Express, which made a profit of about $41 per passenger. California has done the maths. Transportation accounts for 40% of California's greenhouse gas emissions. Last November, California voters approved a $9.95 billion bond to fund a high-speed train line from San Diego to Sacramento (picture below). This was followed up last month by a bid for more than $4.7 billion in federal stimulus funding for a high-speed (over 200 mph) rail system to serve millions of residents in virtually every major city in California.  Proposed High Speed Rail in California - image courtesy of cahighspeedrail.ca.gov
2. Solar powered Bullet Trains Solar Bullet proposes to create a series of tracks in the U.S. Southwest, serving a 220 mph train system that would require 110 megawatts of electricity, to be produced by solar panels mounted above the tracks, at a target price of $20 to $40 Million a mile. The cost for the first phase alone is estimated at $27 billion.  Proposed Solar Bullet train - image courtesy of Solar Bullet
3. Parked Cars producing Electricity Car parking lots at such high speed railway stations could use the parked cars’ windshields and roofs to mirror sunlight onto a solar energy concentrating tower to contribute electricity.  Solasis design by Yongbang Ho and Klaud Wasiak, Canada- from images at Designboom
4. Solar Panels as Road Surface
Idaho-based Solar Roadways has a received a $100,000 Department of Transportation (DOT) grant to further develop the concept of using photovoltaic (PV) solar panels as road surface.  Roads paved with Solar Panels - Artwork by Dan Walden - part-image from Solar Roadways
Such roads could supply electricity to power street lighting, traffic lights, buildings and vehicles. The roads could be marked by numerous embedded LEDs, which could create lines on the road that could be changed depending on traffic. This could reduce congestion and provide better street signage, both of which would make driving safer. Solar panel roads could even be heated in winter to avoid ice building up on the road.
Solar Roadways believe that solar panel roads would be cost-competitive with conventional roads once you take into account savings in energy production and distribution.
The average cost of asphalt roads in 2006 was roughly $16 per square foot, says Company founder Scott Brusaw. A one-mile stretch of asphalt highway costs over $4 Million and will last only seven years. PV panels cost about $10 per square foot. They would need to be strengthened with a thick layer of glass to withstand traffic, but PV panels are already able to withstand 3/4” hail at 60 mph, while solar panels carry 20-25 year warranties, with life expectancies of 40+ years, according to figures by Namaste. The upfront cost may be higher, but this could be mitigated by less need for maintenance. The figures can only get better. Strength and efficiency of PV panels can be expected to increase with further innovation. Low-cost PV panels currently are 12 - 15% efficient, but efficiencies of 35.8% for solar cells for satellites and 41.1% for terrestrial solar cells have been achieved earlier this year. A terrestrial concentrator solar cell efficiency of 40.7% was already achieved back in 2006. These figures are for multiple-layer panels, which are more expensive, but mass production could bring down costs substantially. Importantly, such roads could also replace both power plants and the electric grid. There are many advantages in getting rid of electricity poles and upgrading the 110V lines currently going to many homes (see sidebox). It makes sense to switch to buried cables at the same time as switching to roads (and driveways) paved with solar panels. Some will argue that roads paved with solar panels could spoil the scenery. But aren't asphalt roads and electricity poles a eyesore? Petroleum-based asphalt surface can be smelly and it melts during hot days, the black asphalt absorbing 90% of the heat from the sunlight. Moreover, the asphalt comes from oil, which is environmentally not the best choice of material. Solar panel roads would consist mostly of glass, which is easy to recycle. Using solar panels as road surface could easily provide more electricity than the entire U.S. demand, as calculated by Scott Brusaw and as illustrated by the image below. | | Getting rid of Electricity Poles The average pole in the U.S. is about 40 years old, well past its use-by date. Roads paved with solar panels can supply electricity directly to homes. Since electricity is produced locally, there's no need for power plants, relay stations, transmission lines and distribution network to carry electricity to the streets on poles.
Electricity poles are a safety hazard, a fire hazard, people get killed during storms and when driving into the poles. Poles can interfere with broadcasting and communications transmissions, while there are claims that overhead wires can cause cancer. Electricity poles also make access difficult for high vehicles, such as removal trucks, and prevent trees being planted underneath and require access strips for maintenance.
Currently, the burden of maintenance and inspections of roads and power poles is high, both for landowners, utilities and road maintenance crews. Solar panels and buried cables to the homes can be expensive, especially in rocky and uneven places where people live far apart. Buried cables may require digging up streets and gardens, which is inconvenient, but once it's done it often turns out to be cheaper in the long run. Paving roads with solar panels could at the same time create new pedestrian and bicycle paths.
Without overhead wires and electricity poles, more trees could grow in gardens. Buildings could extend to places that were previously out of bounds, due to the access that maintenance people needed to power poles in backyards. Houses in streets paved with solar panels and without power poles would most likely increase in value.
Solar roads would provide a more decentralized grid, better able to respond to local needs for high speed battery recharging. |
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 Irradiance chart - black dots show the area that, if covered with solar panels (8% efficiency), could produce the world's entire energy needs.
5. Roads that power Cars German company IAV (Ingenieurgesellschaft Auto und Verkehr) has taken out a patent to allow wireless recharging by means of electromagnetic induction.  Wireless recharging - screenshot from video at IAV website
A strip embedded in the road would transfer electricity by means of electromagnetic induction to vehicles driving on the road. Sensors would spot the cars and activate the charging process, when required, while radio chips would identify cars for billing purposes. IAV has achieved 90% efficiency in transmission from road to electric vehicle. Earlier this year, researchers at the Korean Advanced Institute Of Science Technology (KAIST) had achieved a 80% efficient transmission through a 1 cm gap, or a 60% effective transmission when the space widened to 12 cm (nearly 5″) when they tested the technology to move a bus.  KAIST project being tested out in february 2009 - image courtesy ctnt korea
November 13, 2009 03:10 PM EST
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rating: 10
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comments: 30
Climate change is here...and there is hell to pay. Hell and High Water is a must-read book for everyone interested in global warming and climate science. Joseph Romm holds a PhD in Physics from MIT, was acting assistant secretary at the Department of Energy in the Clinton Administration (in which he headed the Office of Energy Efficiency and Renewable Energy), and founder of the Center for Energy and Climate Solutions. Many will be familiar with Romm’s writing in the blog, Climate Progress, and Time Magazine has called him “the Web’s most influential climate-change blogger.”
As the title of this 2007 book suggests, the contents are split into two main parts. In Part I, Romm tells us the state of the current science, and then takes us through the likely scenarios for the near future (2000-2025), the intermediate near future (2025-2050), and the slightly further near future (2050-2100). As time passes – and as inaction continues – we advance through increasingly frequent and severe climatic events to what Romm calls “planetary purgatory” in which intense drought is seen in some areas while other areas (e.g., coastlines) experience intense flooding. Finally, barring significant action that begins now, we face “hell and high water,” irreversible global warming and sea level rise. Romm supports these scenarios with facts and the full backing of the scientific consensus. In Part II, Romm takes us through the politics and the solutions. He informs us that we already have the technology to begin dealing with the situation, and to do so before the situation worsens to the point where solutions are much more difficult to initiate. So we can solve this problem. What is missing is the political will. Confounding this is the intentional disinformation being forwarded by free market lobbying groups whose masterful use of rhetoric confuses the public and makes it incredibly difficult for policy-makers to take the needed action. Try on this advice from Frank Luntz in his infamous 2002 “straight talk” strategy memo to conservatives wishing to deny and delay action on global warming: “It can be helpful to think of environmental (and other) issues in terms of a story. A compelling story, even if factually inaccurate, can be more emotionally compelling than the dry recitation of the truth.” [my emphasis added] In other words, at least in the climate change denialist book, lying is okay if it gets your desired point across. And according to Romm this is exactly what the global warming deniers and delayers have been doing. The goal is delay, delay, delay...deny, deny, deny. But Romm also offers solutions. A lot of solutions. And most are based on technologies that already exist today and can be carried out if policy-makers are allowed to put them into practice. Solutions that include putting a price on carbon that can be traded in such a way that companies that reduce their emissions will make money. Solutions like plug-in electric cars (not hydrogen fuel cell cars, which Romm suggests is more of a shell game to delay action than a viable technology). And many more. In his concluding chapter, “The End of Politics,” Romm says that the public – you and me – need to demand change. He notes that everyone must become a “climate champion” that will take whatever action we can to put policy-makers in a position where they can honestly implement adequate policies. Romm says that he does “believe that if we fail to act in time, it will be the single biggest regret any of us has at the end of our lives.” This book is a powerful look at the problems we face with global warming, the solutions that already exist to deal with it, and the politics that keeps us from implementing them. It is a easily readable book for everyone, whether scientifically trained or not. I highly recommend this book for all to read. Readers can also keep up with Romm’s continuing efforts to debunk climate change deniers at http://climateprogress.org/.
Nov 23, 2009 6:41PM ESTSam Carana shared a post
Below are Sam Carana 's 20 most viewed posts at Gather, as at 23 November 2009.
Global Warming - Red Alert!
views: 10024 | rating: 8.6 | comments: 139
. . . more
Nov 17, 2009 3:31PM ESTDavid K. shared a post 
Today in Beijing, US President Barack Obama and Chinese President Hu Jintao announced a package of measures "to strengthen cooperation between the United States and China on clean energy."
According . . . more
Nov 17, 2009 6:09AM ESTSam Carana shared a post 
1. High Speed Rail
High speed rail can move large amounts of people and freight fast, conveniently and economically. High speed rail systems have been operating successfully in Europe and Japan . . . more
Nov 13, 2009 3:10PM ESTDavid K. shared a post 
Climate change is here...and there is hell to pay. Hell and High Water is a must-read book for everyone interested in global warming and climate science. Joseph Romm holds a PhD in Physics from . . . more
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The Greenhouse Effect, what is it, why does it occur and what is the prognosis?
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