While they are a regular springtime occurrence, milder-than-usual winter and spring weather has created ideal conditions for a tent caterpillar population explosion, said Bill Cook, horticulture program coordinator for UA Cooperative Extension in Greenlee County.
Precipitation varied across the Southwest in March, but temperatures remained warm throughout the region. Drought-designated areas were expanded in the April 17 U.S. Drought Monitor, with Arizona and New Mexico documenting increases in the extent and intensity of drought. The three-month outlook for April through June calls for equal chances of above- or below-average precipitation in Arizona and New Mexico and increased chances of above-average temperatures for the entire southwestern United States.
The binational International Boundary and Water Commission is working to transcend the immigration, trade and border wall battle between the two countries. "You have to have establishment of trust," said Jacob Petersen-Perlman, a research analyst at the UA who is involved in the aquifer assessments. "That's not easily earned and (is) often overlooked. You often have to incorporate the emotions behind these issues and the values each of these parties bring to the table."
Robert Glennon, a Regents' Professor at the UA's James E. Rogers College of Law, writes in an op-ed that Arizona has stumbled in proposing desalination and failed to protect its rivers from drought and overuse.