MARBLEHEAD – Swampscott-based HealthLink is urging North Shore residents to rally on Devereux Beach on April 14 as part of a nationwide call for Congress to take action on climate change.Dubbed “Take a Stand in the Sand,” the Saturday rally will feature live bands, comedy, petition drives, and several speakers including Rep. Douglas Petersen, a Marblehead Democrat and legislative spearhead behind many environmentally friendly bills. The Marblehead student activist group Livegreen will send representatives, as will HealthLink. The rally is from noon to 3 p.m.More than 1,300 such rallies are slated for April 14 across the country, according to HeathLink spokesman Martha Dansdill, who suggested participants bring a kite.”Join us and send a clear message to Congress to reduce warming gasses and cut carbon emissions by 80 percent by 2050,” she said.For more information, call HealthLink at (781) 598-1115 or go online to www.healthlink.org.HealthLink sponsors a wide array of environmental and public health initiatives on the North Shore.