{"id":23370,"date":"2012-07-27T16:14:58","date_gmt":"2012-07-27T23:14:58","guid":{"rendered":"http:\/\/blogs.kqed.org\/climatewatch\/?p=23370"},"modified":"2012-07-27T16:14:58","modified_gmt":"2012-07-27T23:14:58","slug":"can-a-bullet-train-shrink-californias-carbon-footprint","status":"publish","type":"post","link":"https:\/\/ww2.kqed.org\/climatewatch\/2012\/07\/27\/can-a-bullet-train-shrink-californias-carbon-footprint\/","title":{"rendered":"Can a Bullet Train Shrink California’s Carbon Footprint?"},"content":{"rendered":"

A Berkeley study says it just might — but not right away
\n<\/strong><\/p>\n

By Roger Rudick<\/p>\n

Near Antwerp, Belgium, there’s a two-mile section of high-speed rail (HSR) line with solar panels over the tracks<\/a> to help power the system. That kind of technology is essential to maximizing environmental benefits from California’s proposed bullet train, according to a new study<\/a> co-authored by Berkeley’s School of Civil and Environmental Engineering. California is poised to begin construction of an HSR line from San Francisco to Los Angeles early next year.<\/p>\n

\"\"
How "green" California's bullet train is depends in part on how electricity for it is being produced.<\/figcaption><\/figure>\n

But before the electrically powered trains start cleaning up California’s air, they have to make it dirtier. That’s because the construction generates pollution. \u201cWe calculated after ground breaking, so the net benefits come at best 10 years after the system starts running,\u201d said Mikhail Chester, a professor at Arizona State and a study author.<\/p>\n

And some of that depends on how quickly people switch from driving and flying to using the train, he added. According to the study, entitled \u201cHigh-speed rail with emerging automobiles and aircraft can reduce environmental impacts in California’s future,\u201d 67% of the construction pollution for HSR comes from making cement.\u00a0 \u201cBut construction is a one-time cost…the benefits continue for the life of the system,\u201d he said.<\/p>\n

\u201cWe have long supported HSR as an alternative to oil-powered automobiles and jet planes,\u201d said Darrell Clarke, co-lead of the Sierra Club’s national “Beyond Oil” campaign. \u201cThe alternative is not doing nothing. The state is growing. Instead of building HSR we could widen highway 99, expand airports\u2014so you’re going to use all those bulldozers and pour all that concrete anyway.\u201d<\/p>\n

The study compared HSR trains in Germany with the estimated carbon emissions of future automobiles, assuming a mix of 35-to-55 mpg hybrid and all-electric cars become the norm in California. Under all scenarios, HSR showed benefits in the long run.<\/p>\n

[module align=”left” width=”half” type=”pull-quote”]It’s important to find the sweet spot that does the most to reduce emissions over all.[\/module]<\/p>\n

\u201cI think the point about running smaller trains during off-peak times is important, to avoid excess capacity,\u201d said Rick Geddes, Associate Professor, Department of Policy Analysis and Management at Cornell, in reference to the study. He also pointed out a difficult trade-off: the faster the trains, the more power they consume. But higher speeds attract riders from heavily polluting airplanes\u2014so it’s important to find the sweet spot that does the most to reduce emissions over all,
\nhe said.<\/p>\n

That’s why HSR builders are working on faster, more energy-efficient designs. The latest version of the TGV, France’s high-speed train, goes 220 mph\u2014about 30 mph faster than the previous generation. But it’s lighter and consumes less power, said Adam Pratt, a spokesman for Alstom, which builds the train.<\/p>\n

Even if California HSR is powered by wind and solar, bad regulations could negate the benefits, according to the study. Under a cap-and-trade policy in which the right to emit carbon is sold on the open market, the efficiencies of the train could drive down the price of carbon offsets. In other words, if the \u201ccap\u201d is too high, the train could just end up making it cheaper for other sectors to pollute.<\/p>\n

But assuming the state can avoid self-defeating policies, the only other way to reduce carbon emissions is to impede travel, said Clark. \u201cBecause under any scenario, California’s going to continue to grow.\u201d<\/p>\n

Lawmakers authorized $4.5 billion in state funds, to be matched by $3.2 billion in federal funds. The initial segment would run from Fresno to Bakersfield, with concurrent work to improve commuter rail services in Northern and Southern California. The trunk of the project will eventually stretch from Anaheim to San Francisco and cost $68 billion.<\/em><\/p>\n

Roger Rudick has closely covered the evolution of California’s High Speed Rail project. His documentary work<\/a> on is profiled at www.trainwars.net.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

A Berkeley study says it just might — but not right away.<\/p>\n","protected":false},"author":11416,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[278,450],"coauthors":[],"series":[],"affiliates":[],"programs":[],"collections":[],"interests":[],"class_list":["post-23370","post","type-post","status-publish","format-standard","hentry","category-government-business","tag-high-speed-rail","tag-public-transportation"],"acf":{"template_type":"standard","featured_image_type":"standard","is_audio_post":false},"yoast_head":"\nCan a Bullet Train Shrink California's Carbon Footprint? | Climate Watch<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ww2.kqed.org\/climatewatch\/2012\/07\/27\/can-a-bullet-train-shrink-californias-carbon-footprint\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Can a Bullet Train Shrink California's Carbon Footprint? 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