Archive for August, 2008

Arctic ice ‘is at tipping point’

// August 28th, 2008 // 1 Comment » // Accelerating Shift, Climate Change, Environment, Global Warming, Tipping Point

By Richard Black
Environment correspondent, BBC News website

Fishing boat in ice

Scientists suggest the Arctic is already at a climatic “tipping point”

Arctic sea ice has shrunk to the second smallest extent since satellite records began, US scientists have revealed.

The National Snow and Ice Data Center (NSIDC) says that the ice-covered area has fallen below its 2005 level, which was the second lowest on record.

Melting has occurred earlier in the year than usual, meaning that the iced area could become even smaller than last September, the lowest recorded.

Researchers say the Arctic is now at a climatic “tipping point”.

“We could very well be in that quick slide downwards in terms of passing a tipping point,” said Mark Serreze, a senior scientist at the Colorado-based NSIDC.

“It’s tipping now. We’re seeing it happen now,” he told the Associated Press news agency.

Under covered

The area covered by ice on 26 August measured 5.26 million sq km (2.03 million sq miles), just below the 2005 low of 5.32 million sq km (2.05 million sq).

But the 2005 low came in late September; and with the 2008 graph pointing downwards, the NSIDC team believes last year’s record could still be broken even though air temperatures, both in the Arctic and globally, have been lower than last year.

Last September, the ice covered just 4.13 million sq km (1.59 million sq miles), the smallest extent seen since satellite imaging began 30 years ago. The 1980 figure was 7.8 million sq km (3 million sq miles). (more…)

Candidates Would Ease Up On Executive Power

// August 21st, 2008 // 1 Comment » // Tipping Point

by Ari Shapiro

All Things Considered, August 21, 2008 · The Bush administration has dramatically expanded executive authority over the past seven years, and the next chief executive will have to decide whether to cling to that power or relinquish it. That decision, according to former Justice Department official Bruce Fein, “is the entire crux of what we are as a country.”

John McCain and Barack Obama

Gabriel Bouys/Emmanuel Dunand
AFP/Getty Images
Comparing Positions

McCain: McCain says he would consult Congress about going to war unless there’s an imminent threat. As a senator, he feels strongly about the powers and prerogatives of the legislative branch. He wants to protect the powers of the presidency for future presidents. McCain says he would never use signing statements and that if Congress forbids a harsh interrogation technique, he wouldn’t allow it. He says he would appoint more judges like Chief Justice John Roberts, who has consistently upheld Bush’s expanded view of executive authority.

Obama: Obama says he would consult Congress about going to war unless there’s an imminent threat. He taught constitutional law at the University of Chicago, so has studied the separation of powers in depth. He believes it is not in the president’s interests to take the law into his own hands. Obama says he would not abuse signing statements and that if Congress forbids a harsh interrogation technique, he wouldn’t allow it. He says he opposes judges such as Roberts.

Fein considers himself a conservative. He served in the Reagan administration, but he has lately been a gadfly over executive power. He says President Bush and Vice President Cheney have set precedents “that will lie around like loaded weapons, ready to be used by any successor, certainly one who doesn’t explicitly renounce them.”

So far, Fein is concerned that neither Sen. Barack Obama nor Sen. John McCain has done enough to explicitly renounce Bush’s stance on executive power.

The debate over executive authority is fundamentally about the three-branch structure of the American government and the system of checks and balances. Bush has tried to shift the balance of power toward the executive in nearly every major recent legal battle, from domestic surveillance to Guantanamo Bay.

McCain and Obama have generally distanced themselves from Bush on these issues.

For example, Bush frequently attaches signing statements to laws, asserting the right to ignore parts of a law that he disagrees with. McCain says he would never do that, and Obama says while he might use signing statements to clarify his position on an ambiguous law, he would not abuse signing statements to undermine the will of Congress.

On the issue of torture, Bush says he can authorize a harsh interrogation technique that Congress has outlawed. McCain and Obama say if Congress forbids an interrogation technique, they would not have the authority to authorize it.

On whether the president needs Congress’ permission to go to war, McCain said during one of the Republican primary debates, “if it’s a long series of buildups where the threat becomes greater and greater, of course you want to go to Congress.” However, he said, “if the situation is that it requires immediate action to ensure the security of the United States of America, that’s what you take your oath to do when you’re inaugurated as president.” Obama has taken roughly the same position. Bush, in contrast, has asserted the right to wage war without congressional authorization.

McCain legal adviser and former Solicitor General Ted Olson says McCain’s background as a senator accounts for the difference between McCain and Bush on some of these issues. McCain “feels strongly about the powers and prerogatives of the legislature,” Olson says. “That’s part of his DNA by this period of time. That was not true with respect to President Bush.”

Obama also comes from the Senate, and he studied separation of powers in depth when he taught constitutional law at the University of Chicago. He generally presents himself as an antidote to the overreaching of the Bush administration.

For example, in an interview Saturday, Obama said Chief Justice John Roberts “has been a little bit too willing and eager to give an administration, whether it’s mine or George Bush’s, more power than I think the Constitution originally intended.”

McCain, in contrast, has said he would appoint judges who are similar to Roberts.

Of course, a candidate can renege on any campaign promise once he’s elected president. University of San Diego law professor Saikrishna Prakash believes that’s especially tempting when it comes to promises to relinquish power. “I imagine there will be changes in position, at least to some extent, on the part of both candidates once they actually become president,” Prakash says. After all, presidents tend to think of themselves as using power only for good.

Olson agrees. He says most of the time, when candidates of either party take office as president, “they feel not only must they exercise the powers of the executive under the Constitution, but they must protect the powers of the presidency for their successors.”

Obama legal adviser Laurence Tribe, a law professor at Harvard, says Obama sees it differently: “He believes that it is not really in the interests of a president who wants to serve the nation to take the law into his own hands and shred it when it’s convenient.”

Fein, however, remains disappointed in both men. He believes the next president needs to take legal action against Bush and Cheney, “not because we want to be vindictive, but because we care about the Constitution.” That is a step that neither candidate has shown any interest in taking.

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Let’s Go Geothermal Washington

// August 19th, 2008 // No Comments » // Uncategorized

Natural energy source under NW mountains

McClatchy Newspapers

Deep beneath the Cascades Mountains, where molten magma heats the Earth’s crust and occasionally bursts through cracks and fractures in violent volcanic eruptions, lurks an energy source that scientists think could be tamed to help power the Northwest.

Though there’s been little exploration, and no deep test holes have been drilled, the geothermal potential of the Cascades — which run from Washington state south through Oregon into Northern California — is starting to attract a buzz. In the next 10 or 15 years, some say, commercial-sized power plants could start generating electricity.

“As this area is predicted to contain vast geothermal resources, development plans for the Cascades are becoming an increasingly frequent topic of conversation,” said a report late last year for the Department of Energy.

Behind Iceland, which gets more than 26 percent of its electricity from geothermal plants, the United States is a world leader in geothermal development, with plants producing more than 3,000 megawatts of electricity.

California is No. 1, and resources in such other Western states as Nevada, Utah, Idaho and Oregon are being developed. Nevada has been dubbed the “Saudi Arabia of geothermal.”

A recent Massachusetts Institute of Technology study found that the amount of geothermal power that could be recovered from deep drilling would represent almost 3,000 times the amount of energy currently consumed in the United States.

Last year’s Energy Department report said the Cascades contained “potentially significant” geothermal resources, but it cautioned that the effort to tap these resources — including drilling miles into volcanoes to tap “supercritical fluids” — won’t be easy.

Even so, the hunt is under way, and some energy companies have zeroed in on certain areas.

Near Baker Lake, north of Seattle, an Oregon company is waiting for leases from the Forest Service and considering a 100-megawatt geothermal plant that could provide enough electricity for 100,000 people. The power it would produce would be cheaper than the electricity from a new natural gas-fired generating plant.

“We are very serious about this,” said Steven Munson, the chief executive of Vulcan Power Co.

In the rough triangle from Mount St. Helens and Mount Adams in Washington state to Mount Hood, east of Portland, there’s enough geothermal potential to develop 1,000 megawatts of electricity, the equivalent of three or four gas-fired generating plants, said Susan Petty, president of AltaRock Energy in Seattle.

The Cascades are part of the so-called “Ring of Fire” of active volcanoes and earthquake faults that surround the Pacific Ocean.

Southeastern Washington, eastern Oregon, southern Idaho, eastern California, Utah and Nevada are in a zone marked by deep fractures in the Earth’s crust that tend to be pathways to the deep circulation of hot water.

Though that water is hot enough to run steam turbines, Petty and others said the temperatures of the geothermal water and hot rocks underlying the Cascades might be even better for producing power. And because magma is closer to the surface in the Cascades, the drilling holes there might not have to be as deep.

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