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Cool Commutes is a friendly competition between our members and other Bay Area employers, public and private, to see which can encourage the greatest number of their employees to use such commute alternatives as transit, carpooling, vanpooling, bicycling, walking and teleworking, rather than driving solo to work.

By 2017, approximately 160,000 more cars will be competing for space on Silicon Valley’s roads-the equivalent of a lane of cars, lined up bumper to bumper, from San Jose to San Diego.

And that’s just counting cars owned by Silicon Valley residents. Thousands more will be pouring over the Pacheco and Altamont passes, or chugging up Hwy 101 from the Monterey Bay Area, to jobs in Silicon Valley.

That increase demonstrates the challenge Silicon Valley-and indeed all of the high tech regions in the nation-face. As our population, the ratio of car ownership, and commute distances increase, congestion on our roadways is rising. All of the nation’s top high tech regions currently endure “undesirable” highway congestion levels, according to the U.S. Bureau of Transportation Statistics. These conditions erode our quality of life. But the situation poses another less visible, but grave, threat. The more we drive, the more greenhouse gases we generate- emissions that are dramatically and rapidly changing the climate of our planet.

CA Global Warming Emissions by Sector

Transportation & Greenhouse Gases

Scientists generally agree that the Earth’s temperature is rising and human activities are accelerating that trend. Human-generated greenhouse gases-pollutants such as carbon dioxide, methane, and nitrous oxide that trap the Earth’s heat, are increasing at a faster rate than any period over the last several thousand years.

The earth has been getting markedly warmer since the late 19th century, evidenced by, among other things, melting glaciers, decreased snow pack in the Sierra Nevada and other mountain ranges, and increasing drought in the American Southwest. But the most rapid changes have occurred within the last two decades. According to the California Climate Action Team, that trend is expected to escalate in the 21st century due in large part to as yet unrealized warming from climate change pollutants already in the atmosphere-pollutants generated by burning coal, oil, and natural gas and clearcutting forests to make way for agriculture and other human activities.

While there is some disagreement about the speed at which the earth is warming and the specific changes it will trigger, there is wide concurrence that if we continue on our current trajectory there will be severe consequences. According to the California Air Resources Board (CARB), California will likely experience more weather extremes (stronger and more frequent storms, flooding and heat waves), reduced water supply due to snowpack melt, extensive coastal damage due to rising sea levels, more forest fires and more respiratory illness.

Trans. Sector Greenhouse Gas Emissions

Recognizing the threat, in 2005 Governor Schwarzenegger established ambitious greenhouse gas emission reduction targets for California. Those reductions are being pursued through a variety of means; including replanting forests, increasing the energy efficiency of appliances and utilizing biogas digesters to reduce methane emissions from farms and landfills. But transportation offers the opportunity for the biggest reductions.

Reducing Vehicle Emissions

Passenger vehicles, freight, rail and aviation account for more than 40% of California’s greenhouse gas emissions. Passenger vehicle emissions comprise two-thirds of that total. What is more, vehicle emissions are one of the fastest growing sources of greenhouse gas emissions. Those statistics spurred California to adopt strict emission standards for new passenger vehicles in 2004-the first in the nation.

The regulations issued by CARB require automakers to reduce greenhouse gas emissions of vehicles sold in the state by 30 percent by 2016, starting with the 2009 model year. Since then, 10 other states have followed California’s lead, including three states that are home to high tech regions–Massachusetts, Washington and Oregon.

The nation’s major automakers sued to overturn the regulation arguing that the standard is so severe it would drive up prices and cripple new-car sales. The regulation is in limbo until the suit is resolved. But record high gas prices have created a demand for more fuel efficient vehicles -which also have lower emissions.

In 2005, Californians purchased one-quarter of the hybrids on the market. Currently 1.2% of total vehicle sales in the nation are hybrids. National sales of hybrids have generally doubled every year since 2000. Other alternatives, such as biodiesel, ethanol and hydrogen are gaining ground, but still represent only a tiny fraction of our fuel portfolio. Hydrogen fuel cells are still prohibitively expensive and we don’t yet have the ability to produce and distribute large quantities of ethanol and biodiesel. Improved battery performances are giving a boost to plug-in hybrids, which can operate for 20 miles solely on electricity. The technology relies on an existing distribution system- the electrical grid-but must overcome concerns about power plant emissions. At least two auto manufacturers, Toyota and Honda, have said they plan to offer flexible-fuel plug-in hybrids soon.

Two-Pronged Approach: Reduce Emissions and Increase Commute Alternatives

If CARB’s greenhouse gas reduction rule is upheld, the state would be able to stabilize its greenhouse gas emissions by 2010. That would be a significant achievement. But if California is to avoid the devastating impacts of global warming, we will need to reduce our emissions even further. Plus, swapping petroleum-guzzling cars to alternative fuel vehicles will do nothing to address our very real congestion problems, particularly in job centers such as Silicon Valley.

We need a two-pronged approach: we need to reduce our tailpipe emissions and decrease the number of miles we drive, particularly solo. We need to increase our use of transit, carpooling, telecommuting, walking and biking.

Reducing the number of cars on our roads by 1 percent would decrease traffic congestion by 5 percent. But making that shift would be a major cultural change. Silicon Valley has one of the highest rates of solo commute driving compared to the nation’s other high tech centers, according to the 2000 US Census. Only Raleigh-Durham, NC and Austin, Texas exceed the Valley’s 76% solo driving record.

Nevertheless, high fuel prices are providing a real incentive for many to use commute alternatives. In 2006, ridership on VTA’s light rail line, Caltrain and on BART, met or exceeded 2000 levels. Caltrain’s decision to increase its baby bullet (express) service and VTA’s light rail extension to Milpitas and Campbell made those systems more convenient to commuters. And transit agencies are using technology to try to make transit more attractive: providing real-time transit information; offering wi-fi connections, and enabling transit users to find, reserve and pay for limited parking via cell phone, the internet and on board navigation systems. We also need to build more homes and jobs in walking distance to transit, and make our neighborhoods more pedestrian and bicycle-friendly. But all of this takes money which, despite an upturn in the state’s economy, is still in short supply.

Building a Sustainable Transportation System

Ironically, the extent to which we succeed in reducing our fuel consumption, we diminish California’s primary sources of transportation funding: the gas tax and the sales tax on gasoline. Yet, the need to maintain, improve and operate our roads, highways, and transit systems continues to grow. The state is still digging its way out of a decade-long, multi-billion transportation infrastructure shortfall that will only be partly assuaged by the passage of a $20 billion transportation bond on the November 2006 ballot. To reduce greenhouse gas emissions and address California’s sizeable infrastructure needs, California will need to restructure the way it finances transportation. For instance, California could:

  • Substantially Increase the Gas Tax, which was last raised in 1990 and has lost 1/3 of its value to inflation since then. This would also discourage solo driving. But it would not resolve the conflict between greater fuel efficiency and shrinking revenues.
  • Adopt Distance-Based Fees based on vehicle fuel efficiency and distance traveled. Europe has applied such fees to freight trucks with enormous success, significantly reducing emissions and miles driven without reducing the volume of goods transported.
  • Institute Congestion Pricing or User Fees, varying the fee in relation to demand. For example, tolls priced higher during peak commute hours can encourage those who can to shift their time of travel to non-peak hours. This distributes demand across other time periods when there is more roadway capacity. The rate can be set so that it is revenue neutral or generates excess funds.
  • Adopt Feebates—a combination of fees and rebates—to encourage the manufacture and purchase of cleaner, more fuel efficient vehicles. Consumers purchase the vehicle of their choice, but receive a rebate or pay a surcharge if their selection is above or below a certain standard of performance. The program can be designed so that it is revenue neutral or generates a positive cash flow.

“Lifeline” rates could be established for low-income motorists for all of these policies to ensure equity.

Magnifying the Impact

California’s emissions policies alone cannot curb global warming. Its real power is that other states are following California’s lead, magnifying its impact.

Yet as bold as it is, California’s vehicle emissions policy is only a first step. We will need to pursue a variety of policies—better integrate transportation and land use, provide more and better transportation alternative for commuters, and transition our entire economy off of carbon-based fuels-to avoid the more severe consequences of global warming. Our task now is to adopt the right combination of economic incentives, fiscal policies and regulatory standards that will spur the type of technological innovation and institutional change necessary to more radically reduce our emissions. If it does, Silicon Valley is well positioned to serve as the locus of that innovation.