An Illinois climber has died of unknown causes on the summit of Denali. Plus, scientists are growing more and more alarmed about the problem of ocean acidification and its potential to affect a wide range of species. Those stories and more on tonight's Alaska News Nightly, broadcast statewide on APRN stations.Individual news stories are posted in the Alaska News category and you can subscribe to APRN's news feeds via e-mail, podcast and RSS.Cruise ship runs around in Glacier BayMatt Miller, KTOO - JuneauAnother cruise ship is in trouble today. The vessel "Spirit of Glacier Bay" operated by Cruise West, ran aground just before 8:00 a.m. this morning in the Bay.Climber collapses, dies on DenaliEli Menaker, APRN - AnchorageA 51-year-old climber died on Denali Friday evening after collapsing at the summit.State of Alaska teams up with natural gas players for in-state deliveryDave Donaldson, APRN - Juneau and Lori Townsend, APRN - AnchorageENSTAR, the Anchorage natural gas utility, has joined with the state of Alaska and the Alaska Natural Gas Development Authority in an effort to develop a gas line to service in-state energy needs. Governor Palin announced the group today, saying the pipeline fits in comfortably with the North Slope gas line under consideration by the legislature.Natural fireworks kick up Alaskan wildfires over holiday weekendLibby Casey, Fairbanks - KUACFire activity picked up across the state over the holiday weekend. Lightning strikes started most of them, but a few were human-caused, including one discovered in Fairbanks yesterday at the corner of the Steese Highway and Johansen Expressway. Fire information officials say someone left a burn pile of pallets and heavy timbers unattended.Ocean turning acidic, threatening fisheries; possible mass extinctionSteve Heimel, APRN - AnchorageThis week, the U.S. House is set to consider a bill to beef up research on the growing acidity of the oceans -- an issue with major implications for fisheries. A research cruise off the west coast last summer discovered acidic waters creeping toward shore far faster than expected.