Just how old are the forests in the Chuska Mountains in the northeastern part of the Navajo Nation? How might those forests fare in a climate that will be warmer and probably drier than anything they've ever experienced?

In early June I had the chance to tromp around in the woods with a group of experts working to answer these questions. Our intrepid leader was UA Laboratory of Tree Ring Research PhD student Chris Guiterman who—I now know—is a man with a plan. The plan goes something like this...(read more)

The workshop report from the November 2013 Southern Arizona Regional Climate Summit for Municipal Leaders is now available. (more)

El Niño being fickle but likely to emerge during monsoon. SW could use summer and/or winter rain. (read more)

In the June Southwest Climate Podcast, CLIMAS climate scientists Zack Guido and Mike Crimmins discuss the ongoing drought conditions (especially at Mike's house), the recent slowdown of a seemingly inevitable El Niño event, and potential impacts of a climate collision between the El Niño and the Monsoon. The next 6 months will be interesting…(more)

Information about this year's likely El Niño...what it means for the Southwest and other parts of the world...

How El Niño will change the world's weather in 2014

University of Arizona Cooperative Extension and the National Weather Service – Tucson Forecast office are sponsoring a morning long training workshop on weather and climate information focused on supporting agricultural and resource management decision- making.  (read more)

It is not a question of if but when will el niño arrive and what will be its strength?  (more)

Warm and dry in SW in last 30 days, upholding winter pattern that favors elevated fire risk in coming months. (more)

CLIMAS and the Center for Climate Adaptation Science and Solutions (CCASS) co-sponsored a panel of UA experts to discuss the recent report from the Intergovernmental Panel on Climate Change (IPCC) entitled "Impacts, Adaptation, and Vulnerability." This report, from the IPCC's Working Group II (WGII), provides an assessment of the scientific, technical, environmental, economic and social aspects of climate change vulnerability for and impact on ecological systems, socio-economic sectors and human health, with an emphasis on regional, sectoral and cross-sectoral issues. (embedded video)