Aerial spraying to combat buffelgrass coming to Saguaro NP Wednesday
Aerial spray will target areas of high spread, while other treatments continue to be used in less affected areas.
Pima County Issues Ground-Level Ozone Advisory
Thursday marks the second consecutive day of an advisory.
Some fire restrictions ease ahead of the holiday weekend
Officials warn to always check restriction status before starting a fire.
Contreras Fire listed as 100% contained
Local management team will hand over control Saturday.
Officials expect wet weather as Contreras Fire passes 20,000 acres
Fire continues to spread toward the northeast
Pima County considers permit for company that will emit trace amounts of cancerous gas
The company previously violated air quality laws in Georgia
Biogas plant makes fuel, money for Pima County
Facility purifies waste methane for commercial use.
Low saguaro reproduction numbers at national park in Tucson
Drought cycle that dates to the mid-1990s thought to be responsible
Surveys aim to track trash making it into the Santa Cruz River
The Sonoran Institute is leading an effort to quantify the trash ending up in the river with the hope of eventually reducing it.
Border wall scars: 'It feels like if someone got a knife and dragged it across my heart.'
Tribal leaders and Borderlands communities reflect on their fruitless struggle to stop the wall.
More Santa Catalina trails and campsites reopen
The Coronado National Forest continues to evaluate safety conditions at trials and campgrounds in the wake of the Bighorn Fire.
Indigenous Peoples' Day border demonstration ends with tear gas, arrests
11 demonstrators taken into DPS custody during a Border Patrol checkpoint blockade in Pima County.
NPS closes route to Quitobaquito Springs
Closure comes a day after O'odham leaders held a cross-border ceremony at the spring.
After Clean Water Act change, uncertainty reigns over water protections
The Trump administration's revision of which waterways are protected creates regulatory uncertainty, especially in arid places.
Daily news roundup: No new coronavirus deaths reported by state, impact of census strong in AZ
Recent coverage impacting Southern Arizona, July 25.
