Researchers at the University of Arizona Laboratory of Tree-Ring Science led the study.
HONOLULU — Warmer-than-normal ocean temperatures around Hawaii this year will likely lead to the worst coral bleaching the islands have ever seen, scientists said Friday.
CINCINNATI — Cincinnati's archbishop has outlined how parishes and offices in the Cincinnati archdiocese are responding to Pope Francis' recent entreaty to preserve the earth.
In "weird year," monsoon totals are slightly above average.
Border communities are the most likely to receive rain today.
ST. LOUIS — The U.S. bishops' point-person on the environment defended Pope Francis' plan to issue a high-level teaching document next week on ecology and climate change, saying Wednesday that global warming was the result of moral failings that the Roman Catholic Church has a duty to address.
MADISON, Wis. — The group of state Department of Natural Resources scientists that Republican lawmakers targeted for cuts has been working on a number of politically charged issues in recent years, including climate change, pollution and mining.
ALBUQUERQUE, N.M. — The grasshopper population could be decreasing this year. It's the latest data point in a trend that a researcher says has been thrown out of whack by climate change.
Four of six warmest years on record have occurred since 2009.
Some areas saw twice their rainfall average. Phoenix might be the biggest story.
Starting your garden with starter plants? Buying local may increase success.
In the final installment in this series, we’ve arrived at the question of how much the historic bedrocks of our economy, Arizona’s traditional Five C’s affect the current state economy.
Temperatures in the Southwest are rising faster compared to those of the U.S. as a whole, a new White House report ion climate shows.
Climate has been a critical resource since Arizona’s beginning. Our sunny, warm, dry weather provided the foundation for successful cattle ranching as well as the cotton and citrus industries.
Do you know Arizona’s traditional five C’s? I’m talking about the most important elements of Arizona’s economy during the state’s development from a U.S. territory through statehood and well into the 20th century.
Earlier this year, scientists at the NOAA Mauna Loa Observatory in Hawaii announced a major threshold in the Earth system had been crossed: the concentration of the greenhouse gas carbon dioxide in Earth’s atmosphere has now passed a level not seen in the last 3 million years.
Much of the heat that was supposed to fire up the globe’s air in the past 15 years — but didn’t — has gone into the ocean, a University of Arizona oceanographer said Friday.
Richard Brusca says he has always emphasized that the Sonoran Desert is much more than the cacti and creosote of the Tucson Basin.
Monsoon's rainy first month brought rain, lightning and cooler temps, but severe-to-extreme drought remains a concern in 94 percent of Arizona.
According to an updated three-month forecast from the National Weather Service's Climate Prediction Center, Tucson's chances for rain are looking up.