More than three years after lava from Hawaii’s erupting Mauna Loa volcano buried a mile of the road leading to NOAA’s Mauna Loa Atmospheric Baseline Observatory (MLO), road crews have carved a temporary road restoring access to the site.  NOAA technicians, who had to be ferried by helicopter to the facility since 2023 to maintain limited operations, have begun restarting many of the science activities that were suspended on November 27, 2022. “The reopening of the road to MLO on March 26, 2026, is a monumental win for NOAA and our long-term environmental observations,” said Vanda Grubišić, director of NOAA’s Global Monitoring Laboratory (GML), which operates the site.…