University of Arizona

Insect resistance to Bt crops – when is it likely?

A University of Arizona survey of 77 studies, released in 2013, found "well-documented cases of field-evolved resistance to Bt crops in five major pests as of 2010, compared with only one case in 2005.

Even odds for a decade-long drought in Southwest

The chances of the U.S. Southwest suffering a decade-long drought are at least 50 percent, thanks to climate change, says a team of researchers.