Dilley's conclusions in many ways echo those of former NASA scientist John L. Casey, who just last year recorded a warning on the issue.
See Casey's warning:
Casey, who now is president of several climate organizations, is the author of "Cold Sun" and "Dark Winter."
"The U.S. under President Obama
has been eager to control industry and industrial output (of carbon dioxide)," he
said the cycles of warming and cooling periods generated by the sun are responsible for the changes.
Right now, he
said, there are a number of hints, including volcanic and earthquake activity.
The last time such factors assembled, he
said, was during a "cold era" during the late 1700s and early 1800s.
In fact, he
said, 1816 was known as the "year without a summer" when snow fell in the middle of August.
Problems this time, however, will be multiplied, because then the U.S. had a population of only 5 million, while now it's about 320 million.
And then, too, "the vast majority of those people raised their own food and took care of themselves."
"When tough times came along they chopped wood for their fire - [and used] stored food," Casey
suggests consumers should store a year's worth of food, because once "we start to lose food and crops either at harvest time or at spring planting, things will get serious."