Monarch butterflies are the only butterfly species known to make a two-way migration, traveling both north and south each ...

USA TODAY analysis found that 90-plus heat index days are becoming more frequent, starting earlier, lasting longer and occurring in longer streaks ...

Corn ethanol, also known as grain alcohol, has been burned in gasoline engines and human stomachs since before Henry Ford was ...

On Tuesday, the United Methodist Church of Green Valley hosted a forum led by the Community Border Alliance to address the mounting pressures caused by shifting trade policies.

The EPA announced plans to fast-track repairs and expansion to the South Bay Wastewater Treatment Plant in just 100 days, a cut from the original two-year timeline.

The EPA and IBWC have fast-tracked the expansion of the South Bay International Wastewater Treatment Plant to reduce polluted ...

A pack of veterinarians clambered over hefty metal crates on Tuesday morning, loading them one by one onto a fleet of ...

Corn ethanol, also known as grain alcohol, has been burned in gasoline engines and human stomachs since before Henry Ford was ...

Federal officials on Tuesday said the expansion of an overwhelmed South Bay sewage plant could be completed in just 100 days.

A troubled Southern New Mexico utility scrutinized for recent arsenic violations has just logged yet another one.

These fruits can make a sweet addition when it comes to getting enough calcium, especially if you're eating a plant-based ...

As Indonesia, one of the world’s biggest polluters, plans to retire its fleet of coal-fired power plants to tackle climate ...