Power providers that had planned to retire coal power plants are now keeping them open, but at higher costs.

Arizona Public Service will be bringing a retired coal plant back online by converting two units to natural gas. The Cholla ...

"In general, coal plants retire because they aren’t cost-effective compared to the new stuff." ...

Add Yahoo as a preferred source to see more of our stories on Google. The summers in Arizona can be brutal for our gardens. We have a long growing season until the thermometer rises to over 100 and ...

Things haven’t exactly been going to plan with TSMC’s Arizona chip plants, but the company is claiming that the second plant could be making 2nm chips in the US as early as 2028. Previously announced ...

Their work resulted in the rediscovery and naming of five of the six known agave species that represent remnant populations of plants domesticated and farmed by pre-contact peoples in today's Arizona ...