Will High-Speed Rail Ever Get on Track in the U.S.?
By Jeff Turrentine
Is it just us?
Other countries don't seem to have a problem getting their high-speed rail systems on track. This superfast, fuel-efficient form of mass transit is wildly popular throughout Asia and the European Union. Japan's sleek Shinkansen line, the busiest high-speed rail system in the world, carries an estimated 420,000 riders every weekday. In China, the new Fuxing Hao bullet train now hurries more than 100 million passengers a year between Beijing and Shanghai at a top speed of 218 miles an hour, allowing its riders to make the trip of 775 miles — roughly the distance from New York City to Chicago — in about four and a half hours. Spain, Germany and France together have more than 4,500 miles of track dedicated to high-speed rail, over which more than 150 million passengers travel annually.
But here in the U.S., attempts to implement regional high-speed rail networks have floundered and faltered. The most recent setback was in California, where just last month the state's new governor, Gavin Newsom, announced that he would be dramatically downsizing an ambitious, exciting system linking the northern and southern portions of the state via a 220-mph bullet train. Cost overruns had more or less doubled the original price tag from roughly $40 billion to $77 billion, with some estimates placing the final bill at nearly $100 billion. As of right now, the previously planned 800-mile line between Los Angeles and San Francisco has dwindled to a $10.6 billion project across 171 miles between the rural Central Valley cities of Bakersfield and Merced — what cynics have mockingly dubbed a "train to nowhere."
Meanwhile, in Texas, plans for a bullet train linking the state's two biggest cities, Dallas and Houston, are going forward — but not without plenty of resistance. Unlike the California project, the Texas Central Railroad's project, pegged at $12 billion to $20 billion, is being financed entirely with private funds, so no one is complaining about the money. Instead, the complaints come from landowners and other stakeholders upset about the seizure and purchase of privately owned tracts through eminent domain. In late January, a court ruled that Texas Central Railroad, in point of fact, isn't even a railroad in the legally recognized sense of the word, since it doesn't currently own anything by way of tracks or rolling stock. As a result, the company's reliance on eminent domain to obtain land for its future trains' right-of-way is misplaced — and illegal — according to the judge overseeing the case. (Texas Central Railroad must now face individual landowners in court.)
The friction these projects are encountering can take many forms, but there's no denying that it's real: A lot of Americans seem downright resistant to high-speed rail. To some, whatever benefits rail travel may confer to individual riders, cities or the environment can't ever be enough to offset the massive (and, typically, ballooning) costs to taxpayers during the construction period, which can stretch on for decades. To others, high-speed rail projects — no matter how they're funded — are little more than land grabs that punish rural communities in pursuit of what many perceive as an urbanist folly.
I can't help but wonder if behind both sentiments is a latent fear: that this form of mass transit, precisely because it's so popular in other cultures, somehow poses a threat to our own culture of rugged individualism. The history of American transportation conjures romantic images of the "lone rider" — in the past on horseback, now on a motorcycle or in a car — charting his or her own course out on the open road, free from interference or intervention. This notion often gets compressed into a shrugged assertion: Mass transit is a nice idea, but let's face it: America is a car culture. As a people, we just like to drive. We don't like to be driven.
Actually, if this was ever true, the data suggest it is less true now. Millennials, especially, are rejecting the romanticization of automobiles. According to a 2018 report published by Arity, a Chicago-based company that studies transportation data, more than half of millennials say that car ownership isn't worth the money or the hassle, and that they don't much care for driving anyway. It's worth noting that these are the same people who are currently leading the leading the public fight against climate change, refusing to accept the untenable status quo foisted upon them through the inaction of their elders.
This generation is also, not coincidentally, key to the future economic success of cities, states and regions. If you want to attract young, educated professionals to your city or town, you'd be wise to meet their demands for better and more plentiful public transportation.
Let's face it: When it comes to feelings about mass transit, young Americans appear to have more in common with Asian and European citizens of all ages than they do with older Americans. In anticipation of the day when they're calling the shots economically and politically — a day that's already dawning — we should be busy installing high-speed rail systems in all regions of the country where traffic congestion, pollution and the expenses associated with driving hinder travel between major cities and reduce the quality of life for their citizens.
Yes, we should be mindful of costs. Yes, we should be mindful of landowners' concerns. But should we allow these factors to derail us? Absolutely not.
Jeff Turrentine is the culture & politics columnist at NRDC's onEarth.
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EcoWatch Daily Newsletter
By Danielle Nierenberg
Following the murder of George Floyd by police in Minneapolis, people around the United States are protesting racism, police brutality, inequality, and violence in their own communities. No matter your political affiliation, the violence by multiple police departments in this country is unacceptable.
Mangroves play a vital role in capturing carbon from the atmosphere. Mangrove forests are tremendous assets in the fight to stem the climate crisis. They store more carbon than a rainforest of the same size.
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By Jacob L. Steenwyk and Antonis Rokas
From the mythical minotaur to the mule, creatures created from merging two or more distinct organisms – hybrids – have played defining roles in human history and culture. However, not all hybrids are as fantastic as the minotaur or as dependable as the mule; in fact, some of them cause human diseases.
When Looking Through a Microscope Isn’t Close Enough.<p>For the last few years, <a href="http://www.rokaslab.org/" target="_blank">our team at Vanderbilt University</a>, <a href="https://www.researchgate.net/lab/Gustavo-Goldman-Lab" target="_blank">Gustavo Goldman's team at São Paulo University in Brazil</a> and many other collaborators around the world have been collecting samples of fungi from patients infected with different species of <em>Aspergillus</em> molds. One of the species we are particularly interested in is <a href="https://doi.org/10.1006/rwgn.2001.0082" target="_blank"><em>Aspergillus nidulans</em>, a relatively common and generally harmless fungus</a>. Clinical laboratories typically identify the species of <em>Aspergillus</em> causing the infection by examining cultures of the fungi under the microscope. The problem with this approach is that very closely related species of <em>Aspergillus</em> tend to look very similar in their broad morphology or physical appearance when viewing them through a microscope.</p><p>Interested in examining the varying abilities of different <em>A. nidulans</em> strains to cause disease, we decided to analyze their total genetic content, or genomes. What we saw came as a total surprise. We had not collected <em>A. nidulans</em> but <em>Aspergillus latus</em>, a close relative of <em>A. nidulans</em> and, as we were to soon find out, <a href="https://doi.org/10.1016/j.cub.2020.04.071" target="_blank">a hybrid species that evolved through the fusion of the genomes</a> of two other <em>Aspergillus</em> species: <em>Aspergillus spinulosporus</em> and an unknown close relative of <em>Aspergillus quadrilineatus</em>. Thus, we realized not only that these patients harbored infections from an entirely different species than we thought they were, but also that this species was the first ever <em>Aspergillus</em> hybrid known to cause human infections.</p>
Several Different Fungal Hybrids Cause Human Disease.<p>Hybrid fungi that can cause infections in humans are well known to occur in several different lineages of single-celled fungi known as yeasts. Notable examples include multiple different species of <a href="https://doi.org/10.1002/yea.3242" target="_blank">yeast hybrids</a> that cause the human diseases <a href="https://rarediseases.info.nih.gov/diseases/6218/cryptococcosis" target="_blank">cryptococcosis</a> and <a href="https://www.cdc.gov/fungal/diseases/candidiasis/index.html" target="_blank">candidiasis</a>. Although pathogenic yeast hybrids are well known, our discovery that the <em>A. latus</em> pathogen is a hybrid is a first for molds that cause disease in humans.</p>
(Left) Candida yeasts live on parts of the human body. Imbalance of microbes on the body can allow these yeasts, some of which are hybrids, to grow and cause infection. (Right) Cryptococcus yeasts, including ones that are hybrids, can cause life-threatening infections in primarily immunocompromised people. Centers for Disease Control and Prevention<p><a href="https://doi.org/10.1371/journal.ppat.1008315" target="_blank">Why certain <em>Aspergillus</em> species are so deadly</a> while others are harmless remains unknown. This may in part be because <a href="https://doi.org/10.1016/j.fbr.2007.02.007" target="_blank">combinations of traits, rather than individual traits</a>, underlie organisms' ability to cause disease. So why then are hybrids frequently associated with human disease? Hybrids inherit genetic material from both parents, which may result in new combinations of traits. This may make them more similar to one parent in some of their characteristics, reflect both parents in others or may differ from both in the rest. It is precisely this mix and match of traits that hybrids have inherited from their parental species that <a href="https://www.nytimes.com/2010/09/14/science/14creatures.html" target="_blank">facilitates their evolutionary success</a>, including their ability to cause disease.</p>
The Evolutionary Origin of an Aspergillus Hybrid.<p>Multiple evolutionary paths can lead to the emergence of hybrids. One path is through mating, just as the horse and donkey mate to create a mule. Another path is through the merging or fusion of genetic material from cells of different species.</p><p>It is this second path that appears to have been taken by our fungus. <em>A. latus</em> appears to have two of almost everything compared to its parental species: twice the genome size, twice the total number of genes and so on. But unlike other hybrids, which are often sterile like the mule, we found that <em>A. latus</em> is capable of reproducing both asexually and sexually.</p><p>But how distinct were the parents of <em>A. latus</em>? By comparing the parts contributed by each parent in the <em>A. latus</em> genome, we estimate that its parents are approximately 93% genetically similar, which is about as related as we humans are with lemurs. In other words, <em>A. latus</em>, an agent of infectious disease, is the fungal equivalent of a human-lemur hybrid.</p>
How A. Latus Differs From its Parents.<p>Elucidating the identity of closely related fungal pathogens and how they differ from each other in infection-relevant characteristics is a key step toward reducing the burden of fungal disease. For example, we found that <em>A. latus</em> was three times more resistant than <em>A. nidulans</em>, the species it was originally identified as using microscopy-based methods, to one of the most common antifungal drugs, <a href="https://www.drugbank.ca/drugs/DB00520" target="_blank">caspofungin</a>. This result provides a clear example of the potential importance of accurate identification of the <em>Aspergillus</em> pathogen causing an infection.</p><p>We also examined how <em>A. latus</em> and <em>A. nidulans</em> interact with cells from our immune system. We found that immune cells were less efficient at combating <em>A. latus</em> compared to <em>A. nidulans</em>, suggesting the hybrid fungus may be trickier for our immune systems to identify and destroy.</p><p>In the midst of the COVID-19 pandemic, our quest to understand <em>Aspergillus</em> pathogens is becoming more urgent. Growing evidence suggests that <a href="https://doi.org/10.1111/myc.13096" target="_blank">a fraction of COVID-19 patients are also infected with <em>Aspergillus</em>.</a> More worrying is that these <a href="https://doi.org/10.3201/eid2607.201603" target="_blank">secondary <em>Aspergillus</em> infections</a> can worsen the clinical outcomes for those infected with the novel coronavirus. That being said, we stress that little is known about <em>Aspergillus</em> infections in COVID-19 patients due to a lack of systematic testing, and none of the infections identified so far appear to have been caused by hybrids.</p><p>So, when it comes to hybrids, some are fantastic (the minotaur), some are helpful (the mule) and some are dangerous (<em>Aspergillus latus</em>). Understanding more about the biology of <em>Aspergillus latus</em> may help in our understanding of how microbial pathogens arise and how to best prevent and combat their infections.</p>
This Saturday, June 6, marks National Trails Day, an annual celebration of the remarkable recreational, scenic and hiking trails that crisscross parks nationwide. The event, which started in 1993, honors the National Trail System and calls for volunteers to help with trail maintenance in parks across the country.
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By John Letzing
This past Wednesday, when some previously hard-hit countries were able to register daily COVID-19 infections in the single digits, the Navajo Nation – a 71,000 square-kilometer (27,000-square-mile) expanse of the western US – reported 54 new cases of what's referred to locally as "Dikos Ntsaaígíí-19."
The Navajo Nation covers the corners of three different states. Google Maps
Growing Contribution<img lazy-loadable="true" src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzM3NDY5Ny9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTY0NjM4MTgyM30.IuQTKQs1stvYYKD6vaVTrqAyoBsUG0BhDvlhxsyKwPA/img.png?width=980" id="02a05" class="rm-shortcode" data-rm-shortcode-id="2841f82b1785df5d5ed7bf64d3bb882b" data-rm-shortcode-name="rebelmouse-image" />
World Economic Forum
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World Environment Day: A Time to Consider the Planet We’ll Return To, and Decide How to Care for It Going Forward
It's a different kind of World Environment Day this year. In prior years, it might have been enough to plant a tree, spend some extra time in the garden, or teach kids the importance of recycling. This year we have heavier tasks at hand. It's been months since we've been able to spend sufficient time outside, and as we lustfully watch the beauty of a new spring through our kitchen's glass windows, we have to decide how we'll interact with the natural world on our release, and how we can prevent, or be equipped to handle, future threats against our wellbeing.