Saturday, April 26, 2008

ways to reduce gasoline usage

  1. Avoid high speeds. Calculations demonstrate a decrease of 3 miles per gallon between 55-65 mph, which rises to 4.3 mpg between 55-70 because of wind resistance.
  2. Avoid jackrabbit starts. Gentle acceleration definitely cuts down on gas usage. The "Driving Change" pilot program in the Denver area harnesses an innovative accelerometer (made by Cartasite, Inc.) with the access of the Internet to help motorists track their driving techniques in an effort to help reduce air pollution and increase mpg.
  3. Avoid unnecessary sudden braking. Coast to a stop to save gas and lower the amount of asbestos fibers in the air.
  4. Only use "cruise control" on the open highway. In heavy traffic, it simply wastes gas.
  5. Practice optimized shifting techniques. Get into higher gears as quickly as possible.
  6. Switch off the air conditioner to save 5% to 15% of the energy your car uses.
  7. If idling is anticipated for over 60 seconds, shut the engine off.
  8. Lighten the load: 1% of fuel efficiency is lost for every 50 pounds of extra weight in your trunk.
  9. Remove bike, luggage, or ski racks from the top of your SUV or truck for less wind resistance.
  10. Keep tires fully inflated to manufacturer's specifications for a 3% gas savings.
  11. Use a multi-grade (versus "straight") motor oil to improve mileage by 1.5% to 2.7%.
  12. Keep your vehicle in good state of tune.
  13. Lastly, practice combining errands. This reduces "cold starts," which account for a disproportionate amount of air pollution.

from MSNBC.com

Tuesday, April 22, 2008

Smog, even in small amounts, leads to premature death

as reported by AP, found on MSNBC:

Major report links smog to deaths
Findings contradict White House's downplaying of pollution risks


Short-term exposure to smog, or ozone, is clearly linked to premature deaths that should be taken into account when measuring the health benefits of reducing air pollution, a National Academy of Sciences review concludes.

The findings contradict arguments made by some White House officials that the connection between smog and premature death has not been shown sufficiently, and that the number of saved lives should not be calculated in determining clean air benefits.

The report released Tuesday by a panel of the Academy’s National Research Council says government agencies “should give little or no weight” to such arguments.

“The committee has concluded from its review of health-based evidence that short-term exposure to ambient ozone is likely to contribute to premature deaths,” the 13-member panel said.

It added that “studies have yielded strong evidence that short-term exposure to ozone can exacerbate lung conditions, causing illness and hospitalization and can potentially lead to death.”

Even short-term exposure harms
The panel examined short-term exposure — up to 24 hours — to high levels of ozone, but said more studies also were needed on long-term chronic exposure where the risk of premature death “may be larger than those observed in acute effects studies alone.”

Ground-level ozone is formed from nitrogen oxide and organic compounds created by burning fossil fuels and is demonstrated often by the yellow haze or smog that lingers in the air. Ozone exposure is a leading cause of respiratory illnesses and especially affects the elderly, those with respiratory problems and children.

While premature deaths from ozone exposure is greater among individuals with lung and heart disease, the report said such deaths are not restricted to people who are at a high risk of death within a few days.

The scientists said they could not determine, based on a review of health studies, whether there is a threshold below which no fatalities can be assured from ozone exposure. If there is such a point, it is below the ozone levels allowed for public health.

Environmentalists and health advocates have argued that a string of health studies and surveys show that exposure to smoggy air not only aggravates respiratory problems, but annually causes thousands of deaths.

EPA and White House at odds
But in a number of instances the EPA and the White House Office of Management and Budget, which reviews regulations, have been at odds over the certainty of a link between smog levels and deaths.

The Academy’s report “could have important consequences” on such future disputes, said attorney Vicky Patton of the advocacy group Environmental Defense.

She said the OMB in a number of air pollution regulations has sought to minimize the relationship of pollution and premature deaths, resulting in a lower calculation of health benefits from pollution reductions.

“This has been used by industry to try to attack health standards by minimizing the societal benefits,” said Patton.

One such case involves the EPA’s decision last month to toughen the ozone health standard, reducing the allowable concentration in the air.

When the cost-benefit analysis was being prepared in connection with the rulemaking, the OMB argued there is “considerable uncertainty” in the association between ozone levels and deaths.

As a result, the EPA issued a wide cost-benefit range from an annual net societal cost of $20 billion to a savings of $23 billion, depending largely on whether one takes into account lives saved from ozone-related premature deaths.

OMB officials also have objected to the EPA quantifying ozone-related mortality benefits in new emissions standards for lawn mowers and other small engines that release large amounts of ozone-forming pollution.

In response, the EPA removed “all references to quantified ozone benefits” in the proposed rule, according to an e-mail sent by EPA to the OMB. The small engine regulation is awaiting final action.

some numbers:
county health risk score rank vs. nat. median
San Francisco 0 2012 0.364
Alameda 0.04 944 3.015
Los Angeles 0.04 902 3.232
Marin 0 2081 0.3
Orange County 0.07 615 5.409
San Bernardino 0.09 507 6.881
Santa Clara 0.01 1602 0.94
---Ohio----
Washington 4.49 1 350.203
---NY---
New York 0.02 1232 1.804

Ohio as a state has the most polluted counties... Almost all of its counties are ranked in the top 600s.

Monday, April 21, 2008

Newsweek reports on our water conservation problem

http://www.newsweek.com/id/132892

Remember last fall when the city of Atlanta was said to be just weeks away from running dry? It's getting warm in the Southeast again, and Lake Lanier, which supplies water to parts of three states (Georgia, Alabama and Florida) is still down 13 feet from where it should be this time of year. Part of the fault lies with the Army Corps of Engineers, which regulates the outflow from the lake down the Chattahoochee River and sent billions of gallons into the Atlantic to protect the endangered sturgeon population, based on a plan that had not been updated since 1989. It also lost an additional 22 billion gallons, owing to a broken gauge. But the bigger problem is the lack of a coherent policy for collecting, conserving and using fresh water there, or in much of the rest of the United States, or, for that matter, the world.

Environmentalists have long warned about the crisis in nonrenewable resources, such as oil. Water, of course, is the ultimate renewable resource—it falls from the sky—and therefore has been of less concern. But where and when rain falls, and what happens to it after it hits the ground, are crucial in determining the health and prosperity of human societies, says Jeffrey Sachs, director of Columbia University's Earth Institute and special adviser on environmental policy to an impressive number of foreign leaders including U.N. Secretary-General Ban Ki-moon, various governments, even rock stars (Bono is a friend). In his new book, "Common Wealth: Economics for a Crowded Planet," Sachs describes the worldwide water shortage as "one of our most daunting challenges." A six-year drought in Australia has virtually wiped out that country's rice crop, contributing to food riots in countries from Haiti to Indonesia this month. "Much of the world is already in water crisis," Sachs says. "And that crisis will only continue to grow."

Economists and geologists have identified one culprit in the water-management problem, a mind-set they call "stationarity"—the belief that natural systems fluctuate within a narrow, predictable range, even over long periods. "Stationarity is dead," says Chris Milly, author of a recent Science paper on the issue—done in by population growth, climate change and economic development. But the effect of the stationarity fallacy has been to leave water policy in the hands of relatively shortsighted municipal and state authorities, while the federal government has been looking the other way. This problem is especially acute in the Southwest. In February, one study found that Lake Mead, which supplies a stretch of the Colorado River that snakes through northern Arizona, could run dry in a decade or so, if current water use rates persist. Each year, the study found, the lake loses enough water for 8 million people. "Just like we have peak oil, we have peak water, and when it comes to the Colorado River, we are at that peak," says Tim Barnett, a scientist at the Scripps Institution of Oceanography in La Jolla, Calif., and coauthor of the Mead study. "The whole West is under the gun here." And while the threat may be less immediate in regions such as the Northeast, less water in one area can mean less food and more illness in another.
Sachs poses several technical and economic strategies that may help avert disaster. And unlike the ultrahigh-tech fixes to the energy crisis, many of these are relatively uncomplicated, low-cost and already proved. For example, digging ponds or underground receptacles to store rainwater for irrigation during dry spells has increased crop yields for some Chinese farmers by 20 to 50 percent. Cities such as Las Vegas are recycling wastewater. And a handful of states around the country, and countries around the world, have begun manually replenishing natural underground aquifers with treated wastewater or storm runoff, hoping to protect against droughts.

Sachs advocates using a combination of these and other similar strategies, depending on the needs of each region. In combination with economic incentives, he says, they can lessen the severity of the water problem without exceptional cost to the environment or the economy.

But implementing any of these takes planning, organization and leadership. "Politicians don't want to bear the costs of adjustment," Sachs says. "So they ignore the problem and continue the same unsustainable practices." There is no single solution. Governments, industries and individuals will collaborate or suffer the consequences. However responsibility is divided, we can no longer take our most renewable resource for granted.

Muir Woods turn 100 today! Free admission!

As reported by
Michelle Locke, AP


This centennial year celebrating the national monument is full of events including a daylong celebration April 21, the birthday of Sierra Club founder John Muir.

The jammed parking lot outside Muir Woods is proof this stand of old-growth coast redwoods is a popular spot.

And it's easy to see why as you walk away from the clamor into an oasis where slanting beams of sunlight caress rugged red trunks that have stood for hundreds of years.

It almost didn't happen. There was a time when these trees came close to feeling the bite of loggers' saws. But stout efforts by early preservationists turned the area into a national monument in 1908.

"It's a great place because we're able to tell the story of the redwoods and how they were almost cut completely down," says Timothy Jordan, interpretative ranger and volunteer coordinator at the park. "It's a chance to get that message out to people from all around the world."

All around the world is right. Muir Woods, just a dozen miles north of San Francisco, gets a million visitors a year and you may hear the sounds of Mandarin, French, Spanish or a score of other languages in the park at any time. Mostly they seem to be saying the same thing: These trees are big.

The park includes redwoods over 260 feet high; some are more than 1,200 years old. Of special interest is Cathedral Grove, where delegates who drafted the charter of the United Nations held a commemorative ceremony on May 19, 1945, in tribute to President Franklin D. Roosevelt, who died in April of that year.

The grove can be reached on a loop walk of only one mile, great for families and anyone else who isn't seriously into hiking but wants to experience California's famous redwoods without driving for hours.

On certain days, Cathedral Grove is designated a "quiet zone" with a sign to that effect to heighten the experience of the magic and majesty of the woods — all the more remarkable for being about 30 minutes from the cosmopolitan bustle of San Francisco. Listen to the birds and the wind rustling in the branches; gaze up at trees soaring into the sky, their leafy tops forming graceful arches, and you'll understand how this spot got its name.

With Muir's birthday coming up, and in proximity to Earth Day, April 22, and Arbor Day, April 25, officials plan free admission on April 21 with a number of tours and activities. A fun hunt for families is "A Quest at Muir Woods," a booklet with instructions on finding clues to a puzzle along the trail.
President Theodore Roosevelt, a big supporter of the nascent conservation movement, played a pivotal role in preserving the woods.

Most of the coastal redwoods that once covered the California coast were chopped down to build the homes and cities of new California. But the Muir trees, tucked in a hard-to-access Redwood Canyon survived until the turn of the 19th century.

Businessman William Kent bought the land in hopes of preserving it. But after the 1906 earthquake, demand for new development soared and Kent was almost overruled by a local water company which wanted to cut the trees and dam Redwood Creek and filed court papers to try to condemn the land.

Kent, who later became a congressman, donated the land to the government and Roosevelt turned the woods into a national monument using the powers of the recently passed Antiquities Act.

It was Kent who wanted the woods named for naturalist Muir. In an exchange of letters, Roosevelt advocated for putting Kent's name on the new monument, but Kent replied that he had "five good husky boys," and if they couldn't keep the name of Kent alive, "I am willing it should be forgotten."

Kent, whose name is commemorated in the Marin County town of Kentfield among other things, went on to co-author the act creating the National Park Service in 1916.

In a letter to Kent, Muir wrote: "Saving these woods from the axe & saw, from money-changers and water-changers & giving them to our country & the world is in many ways the most notable service to God & man I've heard of since my forest wanderings began."