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Survivors of the deadly shooting rampage at a Parkland, Florida, high school are set to lead thousands Saturday in a March for Our Lives on Washington, delivering their impassioned pleas for stricter gun control law to the nation.PHOTOS: Students take part in 'March for our Lives' across the countryBuilding on the momentum of last week's National School Walkout, these members of a generation raised on gun violence have been rallying Americans around their cause while honoring the 17 students and faculty members killed on February 14 at Marjory Stoneman Douglas High School.The march starts at noon, with participants gathering on Pennsylvania Avenue near the US Capitol. 684

The Arctic is experiencing a multi-year stretch of unparalleled warmth "that is unlike any period on record," according to the 2018 Arctic Report Card, a peer-reviewed report released Tuesday morning from the National Oceanic and Atmospheric Administration, an agency within the United States Department of Commerce.The report states that human-caused climate change is transforming the Arctic, both physically through the reduction of sea ice, and biologically through reductions in wildlife populations and introduction of marine toxins and algae.The report is yet another study from part of the US government indicating that climate change is real and having a profound impact, despite denials from the President and senior members of his Administration.Temperatures in the Arctic are warming more than twice as fast as the overall planet's average temperature, with temperatures this year in the highest latitudes (above 60 degrees north) coming in 1.7 degrees Celsius (3.1 degrees Fahrenheit) above the 1981-2010 average. These were the second warmest (behind 2016) air temperatures ever recorded during the Arctic year, which runs from October through September to avoid splitting the winter season.The five years since 2014 have been warmer than any other years in the historical record, which goes back to 1900. Although Arctic temperatures have been subject to wild swings back and forth through the decades due to natural variability, they have been consistently warmer than average since 2000 and at or near record since 2014, the report states."The changes we are witnessing in the Arctic are sufficiently rapid that they cannot be explained without considering our impacts on the chemistry of the atmosphere," Thomas Mote, a research scientist at the University of Georgia who authored part of the report, told CNN in an email.Mote expressed than any natural cycle or mechanism that would lead to the amount of warming and ice loss that has been observed would take much longer than the few years over which we have seen these drastic changes. 2074

TAHOE CITY, Calif. (AP) -- Officials say California's popular Squaw Valley Ski Resort will change its name because the word "squaw" is a derogatory term for Native American women.Ron Cohen, president and COO of Squaw Valley Alpine Meadow, says the decision was reached after consulting with Native American groups and extensive research into the etymology and history of the term "squaw."It derived from the Algonquin language, may have once simply meant "woman," but over generations, the word morphed into a misogynist and racist term to disparage indigenous women.The new name is expected to be announced next year.Squaw Valley Ski Resort was the scene of the 1960 Winter Olympics. 692

TEMPE, AZ — A train has caught fire after a derailment on a railroad bridge over Tempe Town Lake.The incident occurred around 6 a.m. local time on the south side of the lake near Mill Avenue.A spokesperson with Tempe Fire Department says the incident involves a Union Pacific train that derailed and caused a partial bridge collapse over Tempe Town Lake.About 90 firefighters from multiple departments are at the scene of the second-alarm hazardous materials response.A Union Pacific spokesperson says eight to 10 rail cars caught fire and three tank cars fell onto an empty park area below.The spokesperson says two tank cars contained cyclohexanone and one contained a rubber material. None are believed to be leaking and no tank cars were involved in the fire.One person was reportedly treated for smoke inhalation, but the train crew is not injured. No other injuries have been reported.The Phoenix region's Valley Metro says light rail trains are not crossing Tempe Town Lake at this time due to the fire. Valley Metro's train service is being rerouted at Mill Ave/3rd St and Center Parkway/Wash St.Tempe Police say some streets in the area are also restricted and freeway traffic on the nearby Loop 202 may be impacted due to smoke.It's unknown what caused the derailment.This story was originally published by Ashley Loose on KNXV in Phoenix. 1357

TALLAHASSEE, Fla. - Before the potentially catastrophic storm made landfall in the Florida Panhandle, the Leon County Sheriff’s Office in Tallahassee took a moment to gather and pray ahead of Hurricane Michael.The department posted photos and video of deputies meeting on Tuesday ahead of the storm.Michael quickly grew from a Category 1 to Category 4 storm in just a few days, packing 155 mph winds as it made landfall near Mexico Beach, Fla. at about 1:45 p.m.The sheriff's office asked "If you don't mind, say a prayer for all of the men and women working to keep our community safe."The department's Facebook post received almost 6,000 shares in about 18 hours. 678