In this example, the XML Stylesheet Language (XSL) and Server-Side Includes (SSI) are used to add articles from EnvironmentalHealthNews.org's main RSS feed to an existing web page. This is an excellent option for adding EHN's news to your existing page(s) if your web server supports Server-Side Includes (most do; ask your system administrator or web host if you're not sure). We use XSL to transform the EHN feed into a 'chunk' of HTML and save it to a file. We then use SSI to have the web server dynamically 'include' (insert) that file into an existing web page.

You will need an XSL processor, the XSL stylesheet, and a way to schedule the task so it gets regularly updated with new content from the EHN feed. If your web server is running Linux, you probably already have everything you need. We use 'cron' for scheduling, and 'xsltproc' for our XSL processor. The example cron entry below will apply the XSL stylesheet rss_ssi.xsl to the RSS feed http://www.environmentalhealthnews.org/archives_rss.jsp and save the HTML output as ehn_include.html every hour, on the hour.

0 * * * * xsltproc -o /usr/www/ehn_include.html /usr/www/rss_ssi.xsl http://www.environmentalhealthnews.org/archives_rss.jsp

All that's left to do is 'include' that HTML chunk in an existing web page. We accomplished this by inserting the line below in a table cell.
<!--#include virtual="ehn_include.html" -->

View the XSL stylesheet
View the HTML page source

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EnvironmentalHealthNews.org

NIEHS Director: "We kind of jump from the proverbial fry pan into the fire" when replacing chemicals. As head of the federal institute examining environmental health, Linda Birnbaum and her staff are taking on many controversial topics, including Bisphenol A and new flame retardants. She is concerned about what role chemicals play in cancer and other diseases. Environmental Health News 2009-11-20T09:00-05:00

Effects of judge's Katrina ruling could be huge. The finding that the U.S. Army Corps of Engineers is liable for much of the flooding during Hurricane Katrina could have a far-reaching effect on flood-control policies and on the government's long-standing refusal to take responsibility for its errors. Los Angeles Times 2009-11-20T09:00-05:00

Environmentalists take legal actions to block dredging of Delaware River. Five environmental organizations Thursday filed legal challenges in opposition to the Army Corps of Engineers plan to dredge the Delaware River, which they claimed violates seven federal laws, as well as Delaware law. Newsroom Jersey 2009-11-20T09:00-05:00

As smart grid expands, so does vulnerability to cyber attacks. The accelerating deployment of tens of millions of advanced electric meters and other smart grid devices may help fight climate change. But it also could make the nation's power network potentially more vulnerable, the head of the nation's electric grid operations monitor says. ClimateWire 2009-11-20T09:00-05:00

U.S. group sees worsening coastal flooding threat. Fast-melting ice from Greenland and Antarctica will lead to a much sharper rise in sea levels than previously estimated, touching off flooding that will radically alter U.S. East Coast cities from Miami to Baltimore, according to a new study. Reuters 2009-11-20T09:00-05:00

Harvard finds kidney stones, malaria among global-warming risks. Kidney stones, malaria, Lyme disease, depression and respiratory illness all may increase with global warming, researchers at Harvard Medical School said. Bloomberg News 2009-11-20T09:00-05:00

Eco-alchemy in Alberta. There's a roaring debate in Canada about whether tailings ponds, and oil mines in general, are ecologically salvageable—specifically, whether they can ever support the same flora and fauna as undisturbed land. Science 2009-11-20T09:00-05:00

Radioactive waste contaminating Canadian water supply: Report. Nuclear facilities and power plants are contaminating local Canadian food and water with radioactive waste that increases risks of cancer and birth defects, says a new report to be released on Friday. Canwest News Service 2009-11-20T09:00-05:00

Mexico City's transit improvements on track. Cash-strapped Mexico City is pressing ahead with new bus lines and bike lanes in 2010, buoyed by prestigious recognition for a world-class transit system that has reduced pollution in one of the globe's largest cities with more than 20 million residents and 6 million cars. Associated Press 2009-11-20T09:00-05:00

Four ways to feed the world. Global population is set to grow to 9.1 billion by 2050, while global warming will have a serious impact on farming. So, what can be done? New Scientist 2009-11-20T09:00-05:00

Government reintroduces DDT to eradicate Malaria. Malaria remains a huge health challenge in Botswana and has compelled the government to reintroduce the use of DDT. Gaborone Mmegi 2009-11-20T09:00-05:00

Workers, students exposed to potential toxins at Paramus school. Nearly 100 people affiliated with the West Brook Middle School are suing the school board and the borough, accusing them of knowingly exposing the plaintiffs to potentially toxic chemicals in 2007, according to documents filed in Bergen County Superior Court in Hackensack. Bergen County Record 2009-11-20T09:00-05:00

Owners sue Quadrant Homes over 'sick' houses. Homeowners contend that mold growing in houses built by Quadrant Corp -- flowering, they claim, because rushed construction schedules didn't leave time to dry wet building materials -- is circulated through poorly designed and badly built heating systems, poisoning occupants. Seattle Post-Intelligencer 2009-11-20T09:00-05:00

Asian carp may have breached barrier. The decade-old battle to keep Asian carp out of the Great Lakes might be over. New research shows the fish likely have made it past the $9 million electric fish barrier on the Chicago Sanitary and Ship Canal. Milwaukee Journal Sentinel 2009-11-20T09:00-05:00

EPA intervention in Florida cleanup unwelcome, says DEP. A panel of experts spoke out Monday in opposition to a federal judge's decision allowing the U.S. Environmental Protection Agency to set surface water pollution standards for Florida -- the first time any state's standards have been overridden in this manner. Suwannee Democrat 2009-11-20T09:00-05:00

Lawsuit abuse charge by western lawmakers enrages enviro groups. Poor government oversight has allowed advocacy groups to squander taxpayer money on frivolous lawsuits that drain the budgets of federal land management agencies without the knowledge of the public or Congress, a group of Western lawmakers charge. Greenwire 2009-11-20T09:00-05:00

Average UK woman wears 515 chemicals a day. The average British woman "hosts" 515 chemicals on her body every day, according to a new study. Reuters 2009-11-20T09:00-05:00

Culture clash in medicine. Two new recommendations, calling for delaying the start and reducing the frequency of screening for breast and cervical cancer, have been met with anger and confusion from some corners, not to mention a measure of political posturing. New York Times 2009-11-20T09:00-05:00

Group issues clarification on mammography advice. The federally funded task force that loosened guidelines for breast-cancer screening this week clarified its position Thursday, in response to an intense backlash generated by its new recommendations. Wall Street Journal 2009-11-20T09:00-05:00

Mammogram debate took group by surprise. The Preventive Services Task Force, which urged women to get less-frequent screening for breast cancer, was created to be apolitical. Yet some observers say its apolitical nature may have made it clueless about just how strongly people would react. New York Times 2009-11-20T09:00-05:00

Doctors group advises Pap smear every two years for women in 20s. Most women in their 20s can have a Pap smear every two years instead of annually, say new guidelines that conclude that is enough to catch slow-growing cervical cancer. Associated Press 2009-11-20T09:00-05:00

The mammogram storm: Benefits vs. risks. Common sense tells women that while mammography is an imperfect defense against a disease that will kill 40,000 of them this year, it's better than nothing. No wonder new breast-cancer screening guidelines issued this week went over with a thud. Philadelphia Inquirer 2009-11-20T09:00-05:00

As Yule approaches, Santas seek H1N1 help. Holiday season is colliding with swine flu season, and that has Santas concerned. The cheerful Christmas ambassadors come in contact with millions of children each year, and many are being advised to take special precautions. All Things Considered 2009-11-20T09:00-05:00

Deaths not linked to H1N1 vaccines. About 40 people have died after being inoculated against H1N1 pandemic flu, but investigations so far show the fatalities were not caused by the vaccine, the World Health Organisation said on Thursday. Reuters Health 2009-11-20T09:00-05:00

Less vaccine, but a lot of problems. When the nation's swine flu vaccination program began in early October, health officials predicted it was going to be "messy." They were right. Associated Press 2009-11-20T09:00-05:00

Last year's flu shot may help ward off swine flu, study shows. People who received last year's seasonal flu vaccine may have gained some protection against the swine flu virus, according to a study presented Thursday at the 58th annual meeting of the American Society of Tropical Medicine and Hygiene, in Washington, D.C. USA Today 2009-11-20T09:00-05:00

Mild asthma leads to higher risk of kids getting H1N1: Study. Even mild asthma increases a child's risk of being hospitalized with more severe H1N1 flu, researchers in Toronto are warning. Canwest News Service 2009-11-20T09:00-05:00

US panel votes against new bug-based flu vaccine. More safety data would be needed before a new type of influenza vaccine made in insect cells should get approval, federal advisers said on Thursday. Reuters Health 2009-11-20T09:00-05:00

Guidelines push back age for cervical cancer tests. New guidelines for cervical cancer screening say women should delay their first Pap test until age 21, and go for screening less often than had been previously recommended. New York Times 2009-11-20T09:00-05:00

Group recommends less-frequent Pap tests. Only days after a federal panel scaled back on breast cancer screening recommendations, the American College of Obstetricians and Gynecologists has done the same for Pap smears. Los Angeles Times 2009-11-20T09:00-05:00